2003 Volkswagen Jetta Alternators and Starters

Essential Alternators and Starters for 2003 Volkswagen Jettas

WAI – Bosch Ir/Ef 90 Amp/12Volt, Cw, W/O Pulley, Limited Lifetime Warranty (Part No.14821N)

Bosch Ir/Ef 90 Amp/12Volt, Cw, W/O Pulley, Limited Lifetime Warranty

from

$197.99
Alternator: New, 90 Amps by WAI delivers exceptional performance and reliability, engineered to meet or exceed OEM specifications for a seamless fit and hassle-free installation. Designed with advanced voltage regulator protection, it safeguards against transient voltage spikes, preventing potential battery damage while ensuring efficient communication with the ECU. The high-power rectifier assembly features open junction press-fit diodes, promoting cooler operation and enhanced durability. With low saturation voltage, heat dissipation is minimized, ensuring long-lasting functionality. Each unit comes with a printed copy of test results, providing transparency and confidence in its performance from the moment it powers on. Built for superior quality, this alternator is a dependable choice for maintaining your vehicle’s electrical system.

Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
  • High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
  • Built with superior quality materials, this alternator ensures dependable performance, making it a reliable choice for maintaining your vehicle’s electrical system.
See More

Carquest Premium – Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty (Part No.11460A)

Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty

from

$299.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • 100% new OE-quality brushes and bearings are used to ensure long service life
  • Rotors and stators are load tested and double insulated for maximum charging performance
  • Slip rings are precision polished for maximum brush contact and service life
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

Carquest Premium – Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty (Part No.11134A)

Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty

from

$192.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • 100% new OE-quality brushes and bearings are used to ensure long service life
  • Rotors and stators are load tested and double insulated for maximum charging performance
  • Slip rings are precision polished for maximum brush contact and service life
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

WAI – Alternator: New, 110 Amps (Part No.23358N)

Alternator: New, 110 Amps

from

$287.99
This 110-amp alternator from WAI is engineered to deliver exceptional performance and reliability, making it a top choice for aftermarket replacements. Designed to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. The advanced voltage regulator protection safeguards against transient voltage spikes, preventing potential battery damage, while its low saturation voltage minimizes heat dissipation for enhanced durability. Featuring a high-power rectifier assembly with open junction press-fit diodes, this alternator is built to run cooler and last longer. Each unit comes with a printed copy of test results, giving you confidence in its performance right from the start. Whether you’re upgrading or replacing, this alternator offers superior quality and peace of mind.

Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
  • High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
  • Designed for enhanced durability, the alternator’s advanced construction minimizes heat dissipation, ensuring long-lasting performance even under demanding conditions.
See More

Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.17968S)

Starter: Remanufactured, Limited Lifetime Warranty

from

$154.99
Carquest Premium starters are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium starters are designed to meet or exceed OE specifications for fit, form and function. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and needle bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.
See More

WAI – Starter: 1.1kW/12 Volt, CCW, 11-Tooth Pinion (Part No.19214N)

Starter: 1.1kW/12 Volt, CCW, 11-Tooth Pinion

from

$182.99
Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Premium grade solenoids contains materials specifically selected for best conductivity. High temperature cap ensures that the solenoid works flawlessly in high heat environments. High dielectric strength outer case resists shorting.
  • Armatures have precision machined and upgraded steel shaft for improved durability and performance.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
See More

Bosch – Premium 100% New Starter, Limited Lifetime Warranty (Part No.SR0402N)

Premium 100% New Starter, Limited Lifetime Warranty

from

$233.99
Bosch Premium Starters are designed, built and tested to provide the ultimate in performance and reliability.

Product Features:
  • Premium 100% New Starter
  • Our new and reman starters and alternators are designed to perform equal to or better than the original equipment parts, that they replace
  • Our new and reman starters and alternators are designed to be identical in fit and performance to original equipment parts
  • Our new and reman starters and alternators utilize the latest manufacturing technologies and highest quality parts to ensure the best performance and longest life
See More

WAI – Starter: 1.4kw/12 Volt, CCW, 9-Tooth Pinion (Part No.17222N)

Starter: 1.4kw/12 Volt, CCW, 9-Tooth Pinion

from

$131.99
Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Premium grade solenoids contains materials specifically selected for best conductivity. High temperature cap ensures that the solenoid works flawlessly in high heat environments. High dielectric strength outer case resists shorting.
  • Armatures have precision machined and upgraded steel shaft for improved durability and performance.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
See More

URO Parts – Ignition Lock Cylinder (Part No.3B0905855C)

Ignition Lock Cylinder

from

$56.99
URO Parts has been a leading brand of replacement auto parts for European vehicles for more than thirty years. Affordable yet dedicated to quality, URO Parts controls its production process in strict accordance with ISO/TS 16949 QMS specifications and offers a wide variety of components used to restore or repair engine, electrical, drive train, braking, steering, suspension, climate control, cooling, exhaust, and fuel systems in classic to late-model German, British, and Scandinavian vehicles. Looking for parts that are even higher quality than original equipment? URO Parts engineers analyze common failures and identify weaknesses in original equipment parts when creating URO Premium components, which are superior to OE in performance and reliability thanks to improved materials and more robust designs. Thanks to high-quality, competitively-priced URO Parts and bulletproof URO Premium replacement components, owning a prestigious European vehicle is no longer an expensive luxury reserved for the elite and wealthy.

Product Features:
  • 2 keys included
  • Guaranteed Fitment
  • High Quality Materials
  • Guaranteed fitment
  • Replacement of worn or failing OE lock cylinder instantly restores easy key rotation and positive engagement of starter switch
  • Inexpensive solution to lost ignition keys
  • Manufactured using quality cylinder and tumbler materials for smooth operation and long lifespan
See More

URO Parts – Ignition Lock Housing (Part No.1K0905851B)

Ignition Lock Housing

from

$51.99
For European vehicles, A.P.A. manufactures the URO Parts brand of quality replacement parts, which meet or exceed OEM specifications. URO Parts components are ideal for both professional and DIY vehicle repair, and are often the exclusive aftermarket alternative to overpriced “Genuine” components. By reducing deferred maintenance with URO Parts, you will increase the bottom line of your business. With its URO Premium line, A.P.A. offers problem-solving upgraded components that are superior to failure-prone OEM parts in design and/or materials. URO Parts also specializes in accurate reproduction parts for classic vehicles, including a huge variety of items that are no longer available from the dealer.
See More

URO Parts – Ignition Lock Cylinder (Part No.357905855B)

Ignition Lock Cylinder

from

$10.99
URO Parts has been a leading brand of replacement auto parts for European vehicles for more than thirty years. Affordable yet dedicated to quality, URO Parts controls its production process in strict accordance with ISO/TS 16949 QMS specifications and offers a wide variety of components used to restore or repair engine, electrical, drive train, braking, steering, suspension, climate control, cooling, exhaust, and fuel systems in classic to late-model German, British, and Scandinavian vehicles. Looking for parts that are even higher quality than original equipment? URO Parts engineers analyze common failures and identify weaknesses in original equipment parts when creating URO Premium components, which are superior to OE in performance and reliability thanks to improved materials and more robust designs. Thanks to high-quality, competitively-priced URO Parts and bulletproof URO Premium replacement components, owning a prestigious European vehicle is no longer an expensive luxury reserved for the elite and wealthy.

Product Features:
  • Comes with keys
  • Guaranteed Fitment
  • High Quality Materials
  • Guaranteed fitment
  • Replacement of worn or failing OE lock cylinder instantly restores easy key rotation and positive engagement of starter switch
  • Inexpensive solution to lost ignition keys
  • Manufactured using quality cylinder and tumbler materials for smooth operation and long lifespan
See More

Dorman – Ignition Lock Cylinder Assembly (Part No.989-015)

Ignition Lock Cylinder Assembly

from

$32.99
This ignition lock cylinder is designed to match the fit, function and performance of the original equipment part on specified vehicles. It is engineered to help restore ignition lock function when an original cylinder is broken or worn out.

Product Features:
  • Direct replacement – this ignition lock cylinder matches the fit and function of the original equipment assembly on certain vehicle years, makes and models
  • Ideal solution – engineered to help restore and ensure the functionality of the lock cylinder
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Litens – Overrunning Alternator Pulley (OAP) Pulley – Original Equipment Quality (Part No.930003A)

Overrunning Alternator Pulley (OAP) Pulley - Original Equipment Quality

from

$206.99
This Litens supplied OAP is manufactured by the original equipment (O.E.) manufacturer. This replacement pulley is exact in all form, fit, and performance characteristics as the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). Under rapid engine deceleration, the pulley disengages the alternator from the belt drive system, allowing the alternator to freewheel, re-engaging when the RPM increases. The OAP alternator pulley ensures smooth, quiet performance. The OAP is designed as a sacrificial part of the front-end accessory drive system, protecting other belt driven component. Under normal driving conditions, the original pulley will require replacement in approximately 70,000 – 90,000 miles. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.

Product Features:
  • Original Equipment Design
  • Protects the front-end accessory drive components
  • New seal cap included with the OAP (Always ensure the cap is installed after installation)
  • Tools Required – 17mm Spline Bit Driver (included)
  • Installation instructions included
See More

INA US – ALTERNATOR PULLEY (Part No.EA0001)

ALTERNATOR PULLEY

from

$42.99
ALTERNATOR PULLEY

Litens – Overrunning Alternator Decoupling (OAD) Pulley – Original Equipment Quality (Part No.920046A)

Overrunning Alternator Decoupling (OAD) Pulley - Original Equipment Quality

from

$79.99
Litens Automotive is the original equipment (O.E.) supplier for this application. This replacement alternator pulley is also designed and produced by Litens and is exact in all form, fit, and performance characteristics as the original equipment part. Decoupling pulleys are engine specific and should never be interchanged with other types of pulley technology. The Litens OAD? type pulley is designed to free-wheel in one direction and, with an internal spring and damping device, softly engage in the opposite direction. The OAD? is designed as a sacrificial part of the front-end accessory drive system, protecting other belt driven component as well as the alternator. The correct decoupler pulley ensures smooth, quiet performance as well as increasing vehicle gas mileage. Patented Original Equipment Design. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.

Product Features:
  • Designed and engineered by Litens Automotive. The inventor of the OAD? (Overrunning Alternator Decoupler)
  • Protects the alternator and other front-end accessory drive components
  • 17mm Spline tool included in kit to assist in removal and installation
  • New cap included with the OAD (Always ensure the cap is installed after installation)
  • Installation instructions included
  • Installation instructions included.
See More

Litens – Overrunning Alternator Pulley (OAP) Pulley – Original Equipment Quality (Part No.930013A)

Overrunning Alternator Pulley (OAP) Pulley - Original Equipment Quality

from

$91.99
This Litens supplied OAP is manufactured by the original equipment (O.E.) manufacturer. This replacement pulley is exact in all form, fit, and performance characteristics as the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). Under rapid engine deceleration, the pulley disengages the alternator from the belt drive system, allowing the alternator to freewheel, re-engaging when the RPM increases. The OAP alternator pulley ensures smooth, quiet performance. The OAP is designed as a sacrificial part of the front-end accessory drive system, protecting other belt driven component. Under normal driving conditions, the original pulley will require replacement in approximately 70,000 – 90,000 miles. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.
See More

Carquest Premium – Multi-Purpose Relay (Part No.RAA2803)

Multi-Purpose Relay

from

$71.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
See More

Carquest Premium – Voltage Regulator (Part No.RAA1174)

Voltage Regulator

from

$127.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Product Features:
  • Application matched components ensure the charging system can be returned to like new condition.
See More

Carquest Premium – Voltage Regulator (Part No.RAC1026)

Voltage Regulator

from

$116.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Product Features:
  • Application matched components ensure the charging system can be returned to like new condition.
See More

Carquest Premium – Voltage Regulator (Part No.RAA1104)

Voltage Regulator

from

$196.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Product Features:
  • Application matched components ensure the charging system can be returned to like new condition.
See More

Carquest Premium – Voltage Regulator (Part No.RAC3147)

Voltage Regulator

from

$31.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Product Features:
  • Application matched components ensure the charging system can be returned to like new condition.
See More

Carquest Premium – New Voltage Regulator (Part No.RAE1095)

New Voltage Regulator

from

$99.99
CARQUEST Voltage Regulators are engineered and created by an automotive charging system manufacturer designed to meet or exceed OEM specifications.

Product Features:
  • CARQUEST Voltage Regulators are designed to match OE fit, form and function. Fitted with critical OEM electronic components results in longer life expectancy.
  • CARQUEST Voltage Regulators are mechanically designed with utilization of surface mount technology, robust mechanical housing, and consistent encapsulation to protect against moistures & vibration.
  • CARQUEST Voltage Regulators uses surface mount technology and uniform encapsulation to protect against moistures & vibration.
  • CARQUEST Voltage Regulators are 100% individually tested for all product functionalities that includes the proper voltage set-point, power capabilities, and other product specifications.
See More

Carquest Premium – Starter Solenoid (Part No.SBC1672)

Starter Solenoid

from

$195.99
The starting system consists of the rotating electrical motor and solenoid which may be mounted on the starter motor or mounted remotely. The electric motor drives a gear which engages with the engine’s flywheel located at the rear of the motor, when the motor is energized, the motor will turn the engines crankshaft. The starter solenoid is an electric relay, or switch used to provide power to the starter motor or any electrical device that requires high amperage to operate. A low amperage wire winding within the solenoid will create magnetic force when voltage is applies from a remote switch, such as the ignition switch or another type of remote mounted switch. The contacts within the relay carry a high amperage load to run an electric motor or some other type of high load circuit.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
See More

Carquest Premium – Starter Solenoid (Part No.SBC2436)

Starter Solenoid

from

$107.99
The starting system consists of the rotating electrical motor and solenoid which may be mounted on the starter motor or mounted remotely. The electric motor drives a gear which engages with the engine’s flywheel located at the rear of the motor, when the motor is energized, the motor will turn the engines crankshaft. The starter solenoid is an electric relay, or switch used to provide power to the starter motor or any electrical device that requires high amperage to operate. A low amperage wire winding within the solenoid will create magnetic force when voltage is applies from a remote switch, such as the ignition switch or another type of remote mounted switch. The contacts within the relay carry a high amperage load to run an electric motor or some other type of high load circuit.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
See More

Carquest Premium – Starter Solenoid (Part No.SBC2435)

Starter Solenoid

from

$114.99
The starting system consists of the rotating electrical motor and solenoid which may be mounted on the starter motor or mounted remotely. The electric motor drives a gear which engages with the engine’s flywheel located at the rear of the motor, when the motor is energized, the motor will turn the engines crankshaft. The starter solenoid is an electric relay, or switch used to provide power to the starter motor or any electrical device that requires high amperage to operate. A low amperage wire winding within the solenoid will create magnetic force when voltage is applies from a remote switch, such as the ignition switch or another type of remote mounted switch. The contacts within the relay carry a high amperage load to run an electric motor or some other type of high load circuit.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
See More

Upgrade your 2003 Volkswagen Jetta with Top-Quality Alternators and Starters

When it comes to maintaining or upgrading your 2003 Volkswagen Jetta, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Volkswagen or enhancing its overall performance, Alternators and Starters are key to keeping your Jetta functioning at its best. At Advance Auto Parts, we offer a wide selection of 32 Alternators and Starters for the 2003 Volkswagen Jetta, designed to meet your needs without breaking the bank. From Starter Part replacements to Ignition Lock Parts upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Alternators and Starters for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Alternators and Starters for your 2003 Volkswagen Jetta at great prices. Our Alternators and Starters inventory for this model ranges from just $71.99 to $404.99, with an average price of $243.35. Our 32 Alternators and Starters in stock come from 6 trusted brands, so you’re sure to find the right part for your 2003 Volkswagen Jetta without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2003 Volkswagen Jetta, we stock popular OEM and aftermarket Alternators and Starters from top names like Carquest Premium, and more. Carquest Premium Alternators and Starters start at just $241.99 and boast an impressive 4.4 stars average rating from customers. With 794 customer reviews and counting, our 2003 Volkswagen Jetta Alternators and Starters have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Alternators and Starter upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2003 Volkswagen Jetta is always ready to roll. We’re committed to providing you with everything you need to keep your Jetta in top shape, all in one place. Start shopping confidently below for your 2003 Volkswagen Jetta!

Best-Selling Starter Parts for 2003 Volkswagen Jettas

Enhance the driving experience in your Volkswagen with 12 quality Starter Part components, starting at $71.99.

Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.17780S)

Starter: Remanufactured, Limited Lifetime Warranty

from

$144.99
Carquest Premium starters are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium starters are designed to meet or exceed OE specifications for fit, form and function. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and needle bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • 100% remanufactured drive clutch assembly ensures lasting performance
  • Armatures and commutators are 100% load tested
  • New motor lead terminals and solenoid contacts are used to ensure maximum connectivity
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.17755S)

Starter: Remanufactured, Limited Lifetime Warranty

from

$165.99
Carquest Premium starters are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium starters are designed to meet or exceed OE specifications for fit, form and function. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and needle bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • 100% remanufactured drive clutch assembly ensures lasting performance
  • Armatures and commutators are 100% load tested
  • New motor lead terminals and solenoid contacts are used to ensure maximum connectivity
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.17781S)

Starter: Remanufactured, Limited Lifetime Warranty

from

$164.99
Carquest Premium starters are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium starters are designed to meet or exceed OE specifications for fit, form and function. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and needle bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • 100% remanufactured drive clutch assembly ensures lasting performance
  • Armatures and commutators are 100% load tested
  • New motor lead terminals and solenoid contacts are used to ensure maximum connectivity
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

Bosch – Starter: Remanufactured (Part No.SR0408X)

Starter: Remanufactured

from

$273.99
Bosch Premium Starters are designed, built and tested to provide the ultimate in performance and reliability.

Product Features:
  • Built for extremes! Our new and reman starters and alternators are 100% factory tested to ensure reliable performance, under extremes of heat, cold and high demand
  • Our new and reman starters and alternators are designed to perform equal to or better than the original equipment parts, that they replace
  • Our new and reman starters and alternators are designed to be identical in fit and performance to original equipment parts
  • Our new and reman starters and alternators utilize the latest manufacturing technologies and highest quality parts to ensure the best performance and longest life
See More

Bosch – Starter: Remanufactured (Part No.SR0424X)

Starter: Remanufactured

from

$373.99
Bosch Premium Starters are engineered to deliver exceptional performance and reliability, making them a top choice for demanding conditions. Built for extremes, these starters are rigorously factory-tested to ensure consistent operation under intense heat, cold, and high-demand scenarios. Designed to match or exceed the performance of original equipment parts, they offer seamless compatibility with identical fit and functionality. Utilizing advanced manufacturing technologies and premium-quality components, Bosch ensures optimal performance and extended lifespan. Featuring a counterclockwise rotation, 9-tooth configuration, and 12 VDC voltage, this remanufactured starter is tailored for precision and durability. Whether replacing or upgrading, it provides dependable starting power and value for your vehicle.

Product Features:


Product Features:
  • Built for extremes – Our new and reman starters and alternators are 100% factory tested to ensure reliable performance, under extremes of heat, cold and high demand
  • Our new and reman starters and alternators are designed to perform equal to or better than the original equipment parts, that they replace
  • Our new and reman starters and alternators are designed to be identical in fit and performance to original equipment parts
  • Our new and reman starters and alternators utilize the latest manufacturing technologies and highest quality parts to ensure the best performance and longest life
  • Engineered with a 9-tooth configuration and 12 VDC voltage, this remanufactured starter ensures precise compatibility and dependable starting power for your vehicle.
See More

Bosch – Starter: Remanufactured (Part No.SR0425X)

Starter: Remanufactured

from

$321.99
Bosch Premium Starters are designed, built and tested to provide the ultimate in performance and reliability.

Product Features:
  • Built for extremes! Our new and reman starters and alternators are 100% factory tested to ensure reliable performance, under extremes of heat, cold and high demand
  • Our new and reman starters and alternators are designed to perform equal to or better than the original equipment parts, that they replace
  • Our new and reman starters and alternators are designed to be identical in fit and performance to original equipment parts
  • Our new and reman starters and alternators utilize the latest manufacturing technologies and highest quality parts to ensure the best performance and longest life
See More

Valeo – Volkswagen Beetle 1.8L Starter Motor 438152 2000-2001 (Part No.438152)

Volkswagen Beetle 1.8L Starter Motor 438152 2000-2001

from

$269.99
As a recognized expert in Electrical Systems since 1923, Valeo is a global top supplier of original equipment starters. As an original equipment partner to all major car manufacturers, 1 in 3 vehicles worldwide are equipped with an original Valeo electrical system. Valeo premium starters are 100% new, eliminating the risk of premature failure.

Product Features:
  • Valeo premium starters are 100% new products (not remanufactured)
  • All components are 100% new eliminating premature failure for increased durability over remanufactured units
  • Direct replacement ensuring a perfect fit and easy installation
  • Extreme condition testing ensuring reliability under the harshest demands: noise, vibration, corrosion, durability
  • Speed, temperature, and electrical measurement tests can undergo up to 40,000 cycles to ensure dependable performance
  • Part Number 438152 is the original equipment part now available in the aftermarket.
See More

Valeo – Starter: New (Part No.438428)

Starter: New

from

$239.99
As a global leader in original equipment electrical systems since 1923, Valeo offers 100% new starter motors designed for performance and long-term reliability. Unlike remanufactured units, Valeo premium starters use entirely new components to eliminate premature failure risks and ensure consistent power delivery. Built to original equipment specifications, each starter undergoes stringent quality testing including noise, vibration, corrosion, and endurance validation under extreme conditions. With up to 40,000 test cycles simulating real-world starts, Valeo starters guarantee long-lasting performance. Trusted by major automakers worldwide, Valeo brings OE innovation and durability to the aftermarket with a perfect-fit solution that meets today¿s electrical system demands.

Product Features:
  • 100% NEW ¿ Valeo premium starters are 100% new, not remanufactured, eliminating risks of premature failure
  • 100% NEW ┐ Valeo premium starters are 100% new, not remanufactured, eliminating risks of premature failure
  • OE FIT ¿ Direct replacement design ensures perfect fit and easy installation without modifications
  • OE FIT ┐ Direct replacement design ensures perfect fit and easy installation without modifications
  • EXTREME TESTED ¿ Subjected to rigorous testing for noise, vibration, corrosion, and durability under harsh conditions
  • EXTREME TESTED ┐ Subjected to rigorous testing for noise, vibration, corrosion, and durability under harsh conditions
  • HIGH-PERFORMANCE VALIDATION ¿ Undergoes up to 40,000 cycles of speed, temperature, and electrical measurement tests
  • HIGH-PERFORMANCE VALIDATION ┐ Undergoes up to 40,000 cycles of speed, temperature, and electrical measurement tests
  • LONG-LASTING RELIABILITY ¿ Built for consistent starting power and long service life across a range of vehicle applications.
  • LONG-LASTING RELIABILITY ┐ Built for consistent starting power and long service life across a range of vehicle applications.
See More

Bosch – Starter: Remanufactured (Part No.SR9497X)

Starter: Remanufactured

from

$233.99
Bosch Premium Starters are engineered to deliver exceptional performance and reliability, even in the most demanding conditions. Designed to handle extremes of heat, cold, and high electrical demand, these starters are 100% factory tested to ensure consistent operation. Built to meet or exceed the performance of original equipment parts, they offer a perfect fit and seamless integration with your vehicle. Utilizing advanced manufacturing technologies and premium-quality components, these starters are crafted for durability and long service life. With a counterclockwise (left) rotation, 10-tooth configuration, and 12 VDC voltage, this remanufactured starter is tailored to provide dependable power and precision. Whether you’re replacing a worn-out part or upgrading for better performance, Bosch Premium Starters deliver unmatched value and peace of mind.

Product Features:


Product Features:
  • Built for extremes – Our new and reman starters and alternators are 100% factory tested to ensure reliable performance, under extremes of heat, cold and high demand
  • Our new and reman starters and alternators are designed to perform equal to or better than the original equipment parts, that they replace
  • Our new and reman starters and alternators are designed to be identical in fit and performance to original equipment parts
  • Our new and reman starters and alternators utilize the latest manufacturing technologies and highest quality parts to ensure the best performance and longest life
  • Engineered for precision, this remanufactured starter features a 10-tooth configuration and counterclockwise rotation, ensuring dependable power delivery and seamless compatibility with your vehicle’s electrical system.
See More

WAI – Starter: 2.0kW/12 Volt, CCW, 10-Tooth Pinion (Part No.17820N)

Starter: 2.0kW/12 Volt, CCW, 10-Tooth Pinion

from

$225.99
Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Premium grade solenoids contains materials specifically selected for best conductivity. High temperature cap ensures that the solenoid works flawlessly in high heat environments. High dielectric strength outer case resists shorting.
  • Armatures have precision machined and upgraded steel shaft for improved durability and performance.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
See More

Carquest Premium – Starter Solenoid (Part No.SBC1672)

Starter Solenoid

from

$195.99
The starting system consists of the rotating electrical motor and solenoid which may be mounted on the starter motor or mounted remotely. The electric motor drives a gear which engages with the engine’s flywheel located at the rear of the motor, when the motor is energized, the motor will turn the engines crankshaft. The starter solenoid is an electric relay, or switch used to provide power to the starter motor or any electrical device that requires high amperage to operate. A low amperage wire winding within the solenoid will create magnetic force when voltage is applies from a remote switch, such as the ignition switch or another type of remote mounted switch. The contacts within the relay carry a high amperage load to run an electric motor or some other type of high load circuit.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
See More

Carquest Premium – Multi-Purpose Relay (Part No.RAA2803)

Multi-Purpose Relay

from

$71.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
See More

Most Popular 2003 Volkswagen Jetta Ignition Lock Parts

Customize your Volkswagen with 1 Ignition Lock Parts products like Ignition Lock Cylinders, all priced under $227.99.

Carquest Premium – Ignition Lock Cylinder (Part No.CSC1946)

Ignition Lock Cylinder

from

$227.99
The Ignition switch is the main power switched distribution point in every vehicle. The ignition switch in some manner will be connected directly to the vehicle battery and then supply power out to every operating system in the vehicle that is required to be connected and disconnected from the vehicle’s battery or power source.

Product Features:
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the connector terminal design process ensures speed-to-market and a precise connector fit guaranteed.
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure confidence and product reliability, every time.
See More

Top Picks for 2003 Volkswagen Jetta Alternator Parts

Upgrade Volkswagen Jettas with top-quality Alternator Parts parts, including 15 OEM and aftermarket selections for your 2003 model.

Carquest Premium – Alternator: Remanufactured, 90 Amps, Limited Lifetime Warranty (Part No.13852-7SA)

Alternator: Remanufactured, 90 Amps, Limited Lifetime Warranty

from

$241.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • 100% new OE-quality brushes and bearings are used to ensure long service life
  • Rotors and stators are load tested and double insulated for maximum charging performance
  • Slip rings are precision polished for maximum brush contact and service life
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

Carquest Premium – Alternator: Remanufactured, 120 Amps, Limited Lifetime Warranty (Part No.13853A)

Alternator: Remanufactured, 120 Amps, Limited Lifetime Warranty

from

$269.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • 100% new OE-quality brushes and bearings are used to ensure long service life
  • Rotors and stators are load tested and double insulated for maximum charging performance
  • Slip rings are precision polished for maximum brush contact and service life
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

Carquest Premium – Alternator: Remanufactured, 90 Amps, Limited Lifetime Warranty (Part No.13852A)

Alternator: Remanufactured, 90 Amps, Limited Lifetime Warranty

from

$284.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • 100% new OE-quality brushes and bearings are used to ensure long service life
  • Rotors and stators are load tested and double insulated for maximum charging performance
  • Slip rings are precision polished for maximum brush contact and service life
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

Bosch – Alternator: Remanufactured, 90 Amps, 2 Year Limited Warranty (Part No.AL0188X)

Alternator: Remanufactured, 90 Amps, 2 Year Limited Warranty

from

$282.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for automotive electrical systems. With a robust 90-amp output and 12 VDC voltage, this alternator ensures consistent power delivery for your vehicle’s needs. Engineered with high-quality materials and cutting-edge technology, it is built to last and withstand demanding conditions. Its clockwise rotation direction and full-load testing guarantee compliance with Bosch’s stringent performance standards, ensuring optimal functionality. Unlike rebuilt units, this alternator is 100% factory-tested and remanufactured for superior quality and dependability. Whether you’re replacing a worn-out alternator or upgrading for better performance, this premium component offers unmatched durability and value.

Product Features:


Product Features:
  • Full-load tested to guarantee compliance with Bosch’s strict performance specifications
  • 100% factory tested, units are remanufactured (not rebuilt)
  • Built to last – uses high quality materials and the most technologically advanced developments.
  • Designed to deliver consistent 90-amp power output, ensuring reliable performance for demanding automotive electrical systems.
  • Engineered to withstand challenging conditions, providing long-lasting durability and dependable operation.
See More

Bosch – Alternator: Remanufactured, 120 Amps, 2 Year Limited Warranty (Part No.AL9352X)

Alternator: Remanufactured, 120 Amps, 2 Year Limited Warranty

from

$292.99
The Bosch Premium Alternator, delivering 120 amps and operating at 12 VDC, is engineered for exceptional performance and reliability. This remanufactured unit undergoes 100% factory testing and full-load testing to meet Bosch’s rigorous performance standards, ensuring dependable operation in demanding conditions. Built with high-quality materials and advanced technology, it is designed to last, providing long-term value and peace of mind. With a clockwise rotation direction and a compact 56 mm design, this alternator is a perfect fit for vehicles requiring robust electrical support. Whether you’re replacing a worn-out alternator or upgrading for better performance, this Bosch unit offers unmatched durability and efficiency.

Product Features:


Product Features:
  • Full-load tested to guarantee compliance with Bosch’s strict performance specifications
  • 100% factory tested, units are remanufactured (not rebuilt)
  • Built to last – uses high quality materials and the most technologically advanced developments.
  • Compact 56 mm design ensures easy installation and compatibility with a wide range of vehicle models.
  • Clockwise rotation direction optimizes performance and reliability for vehicles requiring robust electrical support.
See More

Carquest Premium – Alternator: Remanufactured, 70 Amps, Limited Lifetime Warranty (Part No.13850A)

Alternator: Remanufactured, 70 Amps, Limited Lifetime Warranty

from

$219.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading limited warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:


Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • 100% new OE-quality brushes and bearings are used to ensure long service life
  • Rotors and stators are load tested and double insulated for maximum charging performance
  • Slip rings are precision polished for maximum brush contact and service life
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

Valeo – Alternator: New, 120 Amps (Part No.439312)

Alternator: New, 120 Amps

from

$404.99
Alternator: New, 120 Amps by Valeo is a premium solution designed to deliver exceptional performance and reliability. Built with 100% new components and core, this alternator eliminates the risk of premature failure, offering superior durability compared to remanufactured units. Engineered with application-specific parts for an exact fit, it ensures seamless integration into your vehicle’s electrical system. Featuring premium rare earth magnets, it boosts output efficiency without increasing size, making it a compact yet powerful choice. Tested under extreme conditions for up to six months, this alternator guarantees reliability even in the harshest environments, with high resistance to heat, vibration, and contaminants. With a 120-amp rating, 12 VDC voltage, and clockwise rotation, it meets demanding electrical needs while maintaining maximum charge output. As the original equipment part now available in the aftermarket, Valeo’s alternator combines innovation and durability, making it a trusted choice for enhancing fuel economy and eliminating voltage drops.

Product Features:
  • Valeo premium alternators are 100% new products (not remanufactured)
  • 100% new components and core eliminates premature failure for increased durability over remanufactured units
  • All parts are application specific for an exact fit
  • Premium rare earth magnets increase the output of the alternator without increasing the size for better efficiency
  • All applications go under extreme condition testing up to 6 months to ensure reliability under the harshest conditions and electrical demands
  • High resistance to heat, vibration, and contaminating particles helps maintain maximum charge output
  • Part Number 439312 is the original equipment part now available in the aftermarket.
See More

Valeo – Alternator: New, 90 Amps (Part No.439778)

Alternator: New, 90 Amps

from

$374.99
The Valeo premium alternator, designed with a 90-amp output and 12 VDC voltage, is a top-tier solution for reliable electrical performance. Built entirely with new components, this alternator eliminates the risk of premature failure often associated with remanufactured units, ensuring long-lasting durability. Featuring premium rare earth magnets, it delivers enhanced efficiency without increasing size, making it ideal for modern vehicles. Engineered for an exact fit with application-specific parts, it guarantees seamless installation and compatibility. Rigorous testing under extreme conditions for up to six months ensures its reliability in the harshest environments, including resistance to heat, vibration, and contaminants. As an original equipment part now available in the aftermarket, this alternator maintains maximum charge output while boosting fuel economy. With a clockwise rotation direction and Valeo’s legacy of innovation, this alternator is a trusted choice for superior performance and value.

Product Features:
  • Valeo premium alternators are 100% new products (not remanufactured)
  • 100% new components and core eliminates premature failure for increased durability over remanufactured units
  • All parts are application specific for an exact fit
  • Premium rare earth magnets increase the output of the alternator without increasing the size for better efficiency
  • All applications go under extreme condition testing up to 6 months to ensure reliability under the harshest conditions and electrical demands
  • High resistance to heat, vibration, and contaminating particles helps maintain maximum charge output
  • Part Number 439778 is the original equipment part now available in the aftermarket.
See More

Valeo – Alternator: New, 90 Amps (Part No.439311)

Alternator: New, 90 Amps

from

$319.99
Valeo’s 90 Amp alternator is a premium, 100% new product designed to deliver exceptional performance and durability. Unlike remanufactured units, this alternator features all-new components and core, eliminating the risk of premature failure and ensuring long-lasting reliability. Engineered with application-specific precision, it guarantees an exact fit for seamless installation. Utilizing premium rare earth magnets, it achieves higher output without increasing size, enhancing efficiency and fuel economy. Tested under extreme conditions for up to six months, this alternator is built to withstand heat, vibration, and contaminants, maintaining maximum charge output even in the harshest environments. Operating at 12 VDC with a clockwise rotation, this Valeo OE family alternator is the original equipment part (Part Number 439311) now available in the aftermarket, offering unmatched quality and performance.

Product Features:
  • Valeo premium alternators are 100% new products (not remanufactured)
  • 100% new components and core eliminates premature failure for increased durability over remanufactured units
  • All parts are application specific for an exact fit
  • Premium rare earth magnets increase the output of the alternator without increasing the size for better efficiency
  • All applications go under extreme condition testing up to 6 months to ensure reliability under the harshest conditions and electrical demands
  • High resistance to heat, vibration, and contaminating particles helps maintain maximum charge output
  • Part Number 439311 is the original equipment part now available in the aftermarket.
See More

WAI – Valeo Ir/If 90 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty (Part No.13946N)

Valeo Ir/If 90 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty

from

$295.99
The WAI 90 Amp Alternator is a premium choice for reliable performance and durability. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation for your vehicle. Featuring advanced voltage regulator protection, it safeguards against transient voltage spikes, preventing potential battery damage while maintaining efficient communication with the ECU. Its high-power rectifier assembly, equipped with open junction press-fit diodes, is designed to run cooler and last longer, even under demanding conditions. With low saturation voltage, this alternator minimizes heat dissipation, enhancing overall efficiency. Each unit comes with a printed copy of test results, providing transparency and confidence in its performance from the very first use. Whether you’re replacing a worn-out alternator or upgrading for better reliability, this 100% new alternator delivers exceptional value and peace of mind.

Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
  • High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
  • Designed for durability under demanding conditions, the alternator’s advanced construction ensures long-lasting performance and reliability, making it an ideal choice for vehicles requiring consistent power output.
See More

Carquest Professional – Alternator: New, 90 Amps, Limited Lifetime Warranty (Part No.13852AN)

Alternator: New, 90 Amps, Limited Lifetime Warranty

from

$288.99
Carquest Professional alternators are 100% new units that are built to meet or exceed original equipment (O.E.) specifications. Our new alternators are engineered and built by an IATF/TS 16949 certified supplier that meets the highest standards achievable. Carquest Professional alternators are re-engineered to include improvements and enhancements (where applicable) to the OE design to extend longevity and service life. Our new alternators are built with all new components and are 100% triple tested to ensure high quality that is backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Manufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • All new components are utilized to ensure long service life
  • Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
  • Internal electronics are upgraded for heavy duty reliability (where applicable)
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
  • Rotors and stators are load tested and double insulated for maximum charging performance
See More

WAI – Bosch Ir/If 120 Amp/12 Volt, Cw, 6-Groove Clutch Pulley, Limited Lifetime Warranty (Part No.13853N)

Bosch Ir/If 120 Amp/12 Volt, Cw, 6-Groove Clutch Pulley, Limited Lifetime Warranty

from

$275.99
This 120-amp alternator from WAI is engineered to deliver exceptional performance and reliability, making it a top choice for aftermarket replacements. Designed to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. The advanced voltage regulator protection safeguards against transient voltage spikes, preventing potential battery damage, while its low saturation voltage minimizes heat dissipation for enhanced durability. Featuring a high-power rectifier assembly with open junction press-fit diodes, this alternator is built to run cooler and more efficiently. Each unit is rigorously tested, and a printed copy of the test results is included, giving you confidence in its performance from the moment it powers on. With WAI’s commitment to quality, this alternator is a dependable solution for maintaining your vehicle’s electrical system.

Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
  • High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
  • Built for enhanced durability, this alternator features advanced heat management through minimized saturation voltage, ensuring long-lasting performance even under demanding conditions.
See More

Bosch – Alternator: New, 90 Amps (Part No.AL0188N)

Alternator: New, 90 Amps

from

$271.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for your vehicle’s electrical system. With a robust 90-amp amperage rating and 14 VDC output, this alternator ensures consistent power delivery to support your car’s electrical components. Designed for clockwise rotation, it is engineered to meet or exceed OEM specifications, providing a seamless fit and dependable operation. Built with premium materials and tested rigorously, this alternator offers long-lasting durability and peace of mind. Whether you’re replacing a worn-out unit or upgrading for better performance, the Bosch Premium Alternator is a reliable solution that combines efficiency, quality, and value.

Product Features:


Product Features:
  • Provides consistent and reliable power delivery to support your vehicle’s electrical components.
  • Engineered to meet or exceed OEM specifications for a seamless fit and dependable operation.
  • Built with premium materials and rigorously tested for long-lasting durability.
  • Designed for clockwise rotation to ensure compatibility with your vehicle’s system.
  • Offers exceptional performance and efficiency with a robust 90-amp amperage rating and 14 VDC output.
See More

WAI – Bosch Ir/If 90 Amp/12 Volt, Cw, 6-Groove Clutch Pulley, Limited Lifetime Warranty (Part No.13851N)

Bosch Ir/If 90 Amp/12 Volt, Cw, 6-Groove Clutch Pulley, Limited Lifetime Warranty

from

$265.99
This 90-amp alternator from WAI is a premium choice for those seeking reliability and performance. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. Its advanced voltage regulator protection safeguards against transient voltage spikes, preventing potential battery damage, while the low saturation voltage minimizes heat dissipation for enhanced durability. The high-power rectifier assembly, featuring open junction press-fit diodes, is designed to keep the unit running cool even under demanding conditions. Fully compliant with ECU communication, this alternator guarantees seamless integration with your vehicle’s system. Each unit comes with a printed copy of test results, providing transparency and confidence in its performance from the very first use. Built for longevity and efficiency, this alternator is a dependable solution for your vehicle’s electrical needs.

Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
  • High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
  • Built for enhanced durability, the alternator’s advanced design minimizes heat dissipation, ensuring reliable performance even under demanding conditions.
See More

Bosch – Alternator: Remanufactured, 70 Amps, 2 Year Limited Warranty (Part No.AL0731X)

Alternator: Remanufactured, 70 Amps, 2 Year Limited Warranty

from

$224.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for your vehicle’s electrical system. With a robust 70-amp output and 12 VDC voltage, this alternator ensures consistent power delivery for optimal functionality. Engineered with high-quality materials and cutting-edge technology, it is built to withstand demanding conditions and provide long-lasting durability. The unit is remanufactured, not rebuilt, and undergoes 100% factory testing to meet Bosch’s stringent performance standards. Additionally, it is full-load tested to guarantee compliance with strict specifications, ensuring dependable operation. Designed for clockwise rotation, this alternator is a reliable solution for maintaining your vehicle’s electrical performance.

Product Features:


Product Features:
  • Full-load tested to guarantee compliance with Bosch’s strict performance specifications
  • 100% factory tested, units are remanufactured (not rebuilt)
  • Built to last – uses high quality materials and the most technologically advanced developments.
  • Delivers consistent 70-amp output to ensure reliable power for your vehicle’s electrical system.
  • Designed for clockwise rotation, providing compatibility and seamless integration with your vehicle’s setup.
See More

In-Demand Voltage Regulator Parts for 2003 Volkswagen Jettas

Select from 3 premium Voltage Regulator Parts parts for your 2003 Volkswagen Jetta, with prices ranging from $99.99 to $196.99.

Carquest Premium – Voltage Regulator (Part No.RAA1104)

Voltage Regulator

from

$196.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Product Features:
  • Application matched components ensure the charging system can be returned to like new condition.
See More

Carquest Premium – Voltage Regulator (Part No.RAA1174)

Voltage Regulator

from

$127.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Product Features:
  • Application matched components ensure the charging system can be returned to like new condition.
See More

Carquest Premium – New Voltage Regulator (Part No.RAE1095)

New Voltage Regulator

from

$99.99
CARQUEST Voltage Regulators are engineered and created by an automotive charging system manufacturer designed to meet or exceed OEM specifications.

Product Features:
  • CARQUEST Voltage Regulators are designed to match OE fit, form and function. Fitted with critical OEM electronic components results in longer life expectancy.
  • CARQUEST Voltage Regulators are mechanically designed with utilization of surface mount technology, robust mechanical housing, and consistent encapsulation to protect against moistures & vibration.
  • CARQUEST Voltage Regulators uses surface mount technology and uniform encapsulation to protect against moistures & vibration.
  • CARQUEST Voltage Regulators are 100% individually tested for all product functionalities that includes the proper voltage set-point, power capabilities, and other product specifications.
See More

Most Sold 2003 Volkswagen Jetta Alternator Pulley Parts

Explore our best-selling Volkswagen parts for the 2003 Jetta among 1 OEM and aftermarket options starting from $206.99.

Litens – Overrunning Alternator Pulley (OAP) Pulley – Original Equipment Quality (Part No.930003A)

Overrunning Alternator Pulley (OAP) Pulley - Original Equipment Quality

from

$206.99
This Litens supplied OAP is manufactured by the original equipment (O.E.) manufacturer. This replacement pulley is exact in all form, fit, and performance characteristics as the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). Under rapid engine deceleration, the pulley disengages the alternator from the belt drive system, allowing the alternator to freewheel, re-engaging when the RPM increases. The OAP alternator pulley ensures smooth, quiet performance. The OAP is designed as a sacrificial part of the front-end accessory drive system, protecting other belt driven component. Under normal driving conditions, the original pulley will require replacement in approximately 70,000 – 90,000 miles. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.

Product Features:
  • Original Equipment Design
  • Protects the front-end accessory drive components
  • New seal cap included with the OAP (Always ensure the cap is installed after installation)
  • Tools Required – 17mm Spline Bit Driver (included)
  • Installation instructions included
See More

Top-Rated Alternators and Starters Brands For Your 2003 Volkswagen Jetta

Shop for the best-rated brands offering Alternators and Starters and other products for your 2003 Volkswagen Jettas. Below you’ll find some of our best rated Alternators and Starters from Carquest Premium, and more. Alternators and Starters from these brands that fit a 2003 Jetta start at just $241.99 and are rated as high as 4.4 stars. OEM and aftermarket Alternators and Starters don’t get more top quality, durable, and affordable than from the brands below.

Popular Carquest Premium 2003 Volkswagen Jetta Alternators and Starters

When it comes to maintaining or upgrading your 2003 Volkswagen Jetta, using quality Alternators and Starters is essential to ensure durability and a perfect fit. Carquest Premium ticks all of those boxes. We offer a wide selection of Carquest Premium Alternators and Starters, specifically designed for the 2003 Volkswagen Jetta. With over 3 Carquest Premium brand Alternators and Starters in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $241.99, with an average price of just $265.66. Plus, with over 79 customer reviews and an average rating of 4.4 stars, you can trust that our Carquest Premium Alternators and Starters will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
Alternator: Remanufactured, 90 Amps, Limited Lifetime Warranty
from $241.99
(2)
Alternator: Remanufactured, 90 Amps, Limited Lifetime Warranty
“It has been a month, working well, no problems, good price”
Alternator: Remanufactured, 90 Amps, Limited Lifetime Warranty
from $284.99
(17)
Alternator: Remanufactured, 90 Amps, Limited Lifetime Warranty
“Exact fit and power of stock unit. Very simple installation with one electrical connector and three bolts. Seems a bit pricey considering it’s rebuilt”

FAQs for 2003 Volkswagen Jetta Alternators and Starters

Which Alternators and Starters are best-sellers for 2003 Volkswagen Jettas?

Out of 32 Alternators and Starters that fit 2003 Volkswagen Jettas, the following parts are the top sellers:

What’s the price range for 2003 Volkswagen Jetta Alternators and Starters?

Alternators and Starter prices for the 2003 Volkswagen Jetta start at $71.99 and go up to $404.99 for the most premium parts.

What’s the average price of a Alternators and Starter for a 2003 Volkswagen Jetta?

The average price for Alternators and Starters for the 2003 Volkswagen Jetta is $243.35. Keep in mind the variety of part types within our Alternators and Starter category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Alternators and Starters for other Volkswagen Jetta model years?

Yes, we currently carry Alternators and Starters for 45 model years of Volkswagen Jettas between 1980 and 2026. Alternators and Starters are bought most frequently for the following model years: 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, and 2013.

What are the cheapest Alternators and Starters for my 2003 Volkswagen Jetta?

The cheapest 2003 Volkswagen Jetta Alternators and Starters we carry in stock are:

What are the top-rated Alternators and Starters that fit the 2003 Volkswagen Jetta?

Out of 794 reviews by customers, our 2003 Volkswagen Jetta Alternators and Starters have an average customer rating of . These are some of the highest-rated Alternators and Starter types for the 2003 Volkswagen Jetta and their top-rated products:

What types of Alternators and Starters do you sell for my 2003 Volkswagen Jetta?

As of 11/2/25, these are some of the most in-demand types of Alternators and Starters for a 2003 Volkswagen Jetta:

Can I get help with 2003 Volkswagen Jetta Alternators and Starter orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Volkswagen Alternators and Starters and more.

What is your return policy for Volkswagen Jetta Alternators and Starters?

Advance Auto Parts keeps returns simple. For new Volkswagen Jetta Alternators and Starters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.