2004 Audi A4 Alternators and Starters
Find Your Specific 2004 Audi A4 Alternators and Starters
Below you will find various in-demand Audi Alternators and Starters, components and accessories for your 2004 A4. Advance Auto Parts has popular A4 parts like Alternator Parts, Voltage Regulator Parts, Alternator Pulley Parts and more. You’ll also find aftermarket and OEM Alternators and Starters for other A4 model years including
2012,
2013,
2014,
2015,
2016,
2017,
2018,
2019,
2020 and more. Select a category of 2004 Audi A4 Alternators and Starters below and start saving instantly.
Popular 2004 Audi A4 Alternators and Starters Categories
Essential Alternators and Starters for 2004 Audi A4s
Carquest Premium – Voltage Regulator (Part No.RAA1174)
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:
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Product Features:
- Application matched components ensure the charging system can be returned to like new condition.
Carquest Premium – Voltage Regulator (Part No.RAC1026)
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:
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Product Features:
- Application matched components ensure the charging system can be returned to like new condition.
Carquest Premium – Voltage Regulator (Part No.RAA1192)
from
$258.99
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:
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Product Features:
- Application matched components ensure the charging system can be returned to like new condition.
Carquest Premium – New Voltage Regulator (Part No.RAE1095)
from
$99.99
CARQUEST Voltage Regulators are engineered and created by an automotive charging system manufacturer designed to meet or exceed OEM specifications.
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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.
Carquest Premium – Voltage Regulator (Part No.RAA3356)
from
$539.99
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:
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Product Features:
- Application matched components ensure the charging system can be returned to like new condition.
Carquest Premium – Starter Solenoid (Part No.SBC1743)
from
$228.99
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.
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Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Bosch – Starter: Remanufactured (Part No.SR0497X)
from
$307.99
Bosch Premium Starters are designed, built and tested to provide the ultimate in performance and reliability.
Product Features:
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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
Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.12784S)
from
$226.99
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:
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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
Valeo – Audi A4/A4 Quattro 2.0L Starter Motor 438190 2005-2008 (Part No.438190)
from
$224.99
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.
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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 438190 is the original equipment part now available in the aftermarket.
Valeo – Volkswagen Passat 1.8L Starter Motor 438072 1998-2005 (Part No.438072)
from
$254.99
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:
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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 438072 is the original equipment part now available in the aftermarket.
Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.17778S)
from
$269.99
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:
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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
WAI – Starter: 1.4kW/12 Volt, CW, 9-Tooth Pinion (Part No.17778N)
from
$295.99
Product Features:
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- 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.
Bosch – Starter: Remanufactured (Part No.SR0819X)
from
$232.99
Bosch Premium Starters are designed, built and tested to provide the ultimate in performance and reliability.
Product Features:
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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
Carquest Premium – Alternator: Remanufactured, 180 Amps, Limited Lifetime Warranty (Part No.14061A)
from
$482.99
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:
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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
Product Features:
WAI – Valeo Ir/If 140 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty (Part No.11159N)
from
$282.99
This 140-amp alternator from WAI is a top-tier 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 shields against transient voltage spikes, safeguarding your battery and ensuring seamless communication with the ECU. The low saturation voltage minimizes heat dissipation, enhancing durability and efficiency. Featuring a high-power rectifier assembly with open junction press-fit diodes, this alternator is designed to run cooler and last longer. 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. Built for superior quality and durability, this alternator is an excellent investment for dependable power delivery.
Product Features:
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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.
- Rigorously tested for reliability and performance, ensuring long-lasting durability and dependable power delivery.
WAI – Valeo Ir/If 120 Amp/12 Volt, Cw, 5-Groove Clutch Pulley, Limited Lifetime Warranty (Part No.11212N)
from
$414.99
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 very first use. With WAI’s commitment to quality, this alternator offers long-lasting value and dependable power for your vehicle.
Product Features:
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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.
- Each unit is rigorously tested to ensure optimal performance and reliability, providing peace of mind and dependable power for your vehicle.
Carquest Premium – Alternator: Remanufactured, 90 Amps, Limited Lifetime Warranty (Part No.13814A)
from
$351.99
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:
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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
Product Features:
Valeo – Alternator: New (Part No.439986)
from
$799.99
As a pioneer in automotive electrical systems since 1923, Valeo delivers OE-quality alternators trusted by global vehicle manufacturers. Valeo alternators are 100% new never remanufactured and are engineered with premium rare earth magnets to enhance power output without increasing unit size. Each unit is tested for up to 1,000 hours in extreme thermal, vibration, and electrical Conditions to guarantee long-lasting reliability. Designed for seamless OE fitment, Valeo alternators help improve charging efficiency and reduce CO emissions, making them the ideal solution for both performance and sustainability.
Product Features:
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Product Features:
- 100% NEW PRODUCT – Valeo alternators are 100% new, not remanufactured, eliminating the risk of premature failure
- OE FIT – Application-specific design ensures exact fit and seamless integration with vehicle systems
- HIGH-EFFICIENCY OUTPUT – Premium rare earth magnets deliver higher charging power without increasing unit size
- EXTREME TESTING – Each alternator undergoes up to 1,000 hours of load and thermal cycle testing for proven durability
- BUILT TO LAST – Resistant to heat, vibration, and contaminants for long-term, reliable performance.
Product Features:
Valeo – Alternator: New, 180 Amps (Part No.439949)
from
$829.99
The Valeo premium alternator delivers exceptional performance and reliability, making it a top choice for automotive electrical systems. Designed with 100% new components and core, this alternator eliminates the risk of premature failure, ensuring long-lasting durability compared to remanufactured units. Featuring premium rare earth magnets, it achieves superior efficiency by increasing output without enlarging its size. Engineered for exact fit with application-specific parts, it guarantees seamless compatibility and hassle-free installation. Tested under extreme conditions for up to six months, this alternator withstands heat, vibration, and contaminants, maintaining maximum charge output even in the harshest environments. With a robust 180-amp rating, 12 VDC voltage, and clockwise rotation, it meets demanding electrical requirements while boosting fuel economy. As an original equipment part now available in the aftermarket, Valeo’s award-winning innovation ensures reliability and value for your vehicle.
Product Features:
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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 439949 is the original equipment part now available in the aftermarket.
Valeo – Alternator: New, 150 Amps (Part No.439574)
from
$329.99
The Valeo premium alternator, boasting a robust 150-amp output and 12 VDC voltage, is engineered for superior performance and reliability. As a 100% new product, it eliminates the risks associated with remanufactured units, ensuring long-lasting durability. Designed with premium rare earth magnets, this alternator delivers enhanced efficiency without increasing its size, making it ideal for modern vehicles. Its application-specific design guarantees an exact fit, while rigorous testing under extreme conditions for up to six months ensures reliability in the harshest environments. With high resistance to heat, vibration, and contaminants, it maintains maximum charge output even under demanding electrical loads. The clockwise rotation direction and original equipment part number 439574 make it a perfect aftermarket replacement for seamless compatibility. Recognized for innovation, Valeo alternators improve fuel economy and eliminate voltage drops, offering exceptional value for drivers seeking dependable performance.
Product Features:
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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 439574 is the original equipment part now available in the aftermarket.
Litens – Overrunning Alternator Decoupling (OAD) Pulley – Original Equipment Quality (Part No.920135A)
from
$285.99
Litens Automotive is the original equipment supplier for the 2013-2014 Audi A4, A4 Quattro,A5, A5 Quattro, Allroad with 2.0L Gas. This replacement pulley is also designed and produced by Litens and 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). 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. Under normal driving conditions, the original pulley will require replacement in approx. 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.
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INA US – ALT DECOUPLER PULLEY (Part No.EA0130)
from
$53.99
ALT DECOUPLER PULLEY
Litens – Overrunning Alternator Decoupling (OAD) Pulley – Original Equipment Quality (Part No.920851A)
from
$279.99
Litens Automotive is the original equipment supplier to Audi/VW for this decoupling alternator pulley. This replacement pulley is also designed and produced by Litens and 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). 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. Under normal driving conditions, the original pulley will require replacement in approx. 60,000 – 70,000 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:
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Product Features:
- Patented Original Equipment Design
- Protects the alternator and other front-end accessory drive components.
- Installation instructions included.
- New plastic cap included with the OAD.
- Tools Required – Litens recommends using a long 10mm 12 point driver bit (also known as a triple square) and a 17×20 spline tool such as a Metal Nerd MNXZ10 and a Miller Special Tools P/N 8823 and a torque wrench.
- Professional mechanics can install this replacement OAD in approximately 2 hour. During alternator replacement, belts, tensioners, and routing pulleys should be inspected.
- 56.2mm O.D.; 17mm I.D; 40.6mm width; ribbed running surface for a 6-rib serpentine belt; high-grade steel construction. 17mm Spline bit driver Included for ease of installation.
Litens – Overrunning Alternator Pulley (OAP) Pulley – Original Equipment Quality (Part No.930013A)
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.
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Upgrade your 2004 Audi A4 with Top-Quality Alternators and Starters
When it comes to maintaining or upgrading your 2004 Audi A4, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Audi or enhancing its overall performance, Alternators and Starters are key to keeping your A4 functioning at its best. At Advance Auto Parts, we offer a wide selection of 19 Alternators and Starters for the 2004 Audi A4, designed to meet your needs without breaking the bank.
From
Alternator Part
replacements to
Voltage Regulator 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 2004 Audi A4 at great prices.
Our Alternators and Starters inventory for this model
ranges from just $48.99 to $564.99, with
an average price of $297.18.
Our 19 Alternators and Starters in stock come from 6 trusted brands, so you’re sure to find the right part for your 2004 Audi A4 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 2004 Audi A4, 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 $262.99 and boast an impressive 4.4 stars average rating from customers.
With 26 customer reviews and counting, our 2004 Audi A4 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 2004 Audi A4 is always ready to roll. We’re committed to providing you with everything you need to keep your A4 in top shape, all in one place.
Start shopping confidently below for your 2004 Audi A4!
Best-Selling Alternator Parts for 2004 Audi A4s
Enhance the driving experience in your Audi with 8 quality Alternator Part components, starting at $262.99.
Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.11070A)
from
$262.99
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:
See More
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
WAI – Alternator: New, 150 Amps (Part No.11070N)
from
$343.99
This 150-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. The advanced voltage regulator protection guards against transient voltage spikes, preventing potential battery damage, while its low saturation voltage minimizes heat dissipation for enhanced durability. Equipped with a high-power rectifier assembly featuring open junction press-fit diodes, this alternator is designed to run cooler and more efficiently. Each unit comes with a printed copy of test results, providing transparency and confidence in its performance from the very first use. Ideal for those who demand quality and dependability, this alternator is built to deliver consistent power and long-lasting value.
Product Features:
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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 consistent performance and long-lasting reliability.
Bosch – Alternator: New, 150 Amps, Limited Lifetime Warranty (Part No.AL0825N)
from
$404.99
The Bosch Premium Alternator, delivering a robust 150-amp output at 14 VDC, is engineered for exceptional performance and reliability. Featuring 100% new components, it is built to endure the harshest environments, ensuring long-lasting functionality even under excessive heat and high electrical demands. Designed with precision, all mounting points are 100% gauged, resized, or rethreaded for a perfect fit, making installation seamless. Its clockwise rotation direction ensures compatibility with a wide range of vehicles. As an added benefit, every purchase includes free 24-hour Roadside Assistance Protection, offering peace of mind on the road. Choose this alternator for unmatched durability, superior performance, and outstanding value.
Product Features:
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Product Features:
- 100% new components withstand the harshest environments for the best performance and longest life
- Built specifically to withstand excessive heat and high electrical demands.
- All mounting points 100% gauged and resized or rethreaded for proper fit
- Free 24-hour Roadside Assistance Protection with purchase of any Bosch Alternator
- Engineered for seamless compatibility with a wide range of vehicles, the clockwise rotation direction ensures optimal performance and reliability.
Bosch – Alternator: New, 150 Amps (Part No.AL0831N)
from
$564.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for your vehicle’s electrical system. With an impressive 150-amp amperage rating and a 14 VDC voltage output, this alternator ensures consistent power delivery to support your vehicle’s demanding electrical needs. Designed for clockwise rotation, it integrates seamlessly into compatible systems, providing smooth and efficient operation. Built with premium materials and tested rigorously, this alternator is engineered for durability and long-lasting performance, reducing the need for frequent replacements. Whether you’re upgrading or replacing, this alternator offers outstanding value by combining high-quality construction with dependable functionality.
Product Features:
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Product Features:
- Provides a robust 150-amp amperage rating to meet the high electrical demands of modern vehicles.
- Delivers a consistent 14 VDC voltage output for reliable power supply to essential vehicle systems.
- Engineered with premium materials for enhanced durability and long-lasting performance.
- Designed for clockwise rotation to ensure seamless integration and smooth operation in compatible systems.
- Rigorously tested for reliability, reducing the need for frequent replacements and offering exceptional value.
Valeo – Alternator: New, 150 Amps (Part No.439498)
from
$414.99
The Valeo premium alternator, boasting a robust 150-amp output and 12 VDC voltage, is engineered for exceptional performance and reliability. As a 100% new product, it eliminates the risks associated with remanufactured units, ensuring long-lasting durability. Designed with premium rare earth magnets, this alternator delivers superior efficiency without increasing size, making it ideal for modern vehicles. Its application-specific design guarantees an exact fit, while rigorous testing under extreme conditions for up to six months ensures reliability in the harshest environments. Resistant to heat, vibration, and contaminants, it maintains maximum charge output even under demanding electrical loads. With a clockwise rotation direction and original equipment part number 439498 now available in the aftermarket, this alternator is a perfect choice for those seeking top-tier performance and fuel economy. Recognized for innovation, Valeo’s alternators are trusted worldwide, offering unmatched value and reliability for your vehicle’s electrical system.
Product Features:
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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 439498 is the original equipment part now available in the aftermarket.
Bosch – Alternator: Remanufactured, 150 Amps, 2 Year Limited Warranty (Part No.AL0831X)
from
$334.99
The Bosch Premium Alternator, delivering 150 amps and 12 VDC, is engineered for exceptional performance and reliability. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures dependable operation under demanding conditions. Unlike rebuilt units, it is 100% factory-tested and remanufactured using high-quality materials and cutting-edge technology, offering superior durability and longevity. Designed with a clockwise rotation direction, it is built to seamlessly integrate with your vehicle’s electrical system. Whether you’re replacing a worn-out alternator or upgrading for enhanced performance, this Bosch alternator provides the power and dependability you need to keep your vehicle running smoothly.
Product Features:
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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.
- Engineered for seamless integration with your vehicle’s electrical system, ensuring optimal compatibility and performance.
- Designed with a clockwise rotation direction to enhance operational efficiency and reliability.
Valeo – Alternator: New, 150 Amps (Part No.439574)
from
$329.99
The Valeo premium alternator, boasting a robust 150-amp output and 12 VDC voltage, is engineered for superior performance and reliability. As a 100% new product, it eliminates the risks associated with remanufactured units, ensuring long-lasting durability. Designed with premium rare earth magnets, this alternator delivers enhanced efficiency without increasing its size, making it ideal for modern vehicles. Its application-specific design guarantees an exact fit, while rigorous testing under extreme conditions for up to six months ensures reliability in the harshest environments. With high resistance to heat, vibration, and contaminants, it maintains maximum charge output even under demanding electrical loads. The clockwise rotation direction and original equipment part number 439574 make it a perfect aftermarket replacement for seamless compatibility. Recognized for innovation, Valeo alternators improve fuel economy and eliminate voltage drops, offering exceptional value for drivers seeking dependable performance.
Product Features:
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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 439574 is the original equipment part now available in the aftermarket.
WAI – Bosch Ir/If 150 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty (Part No.11065N)
from
$307.99
This 150-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 offers long-lasting value and dependable operation for your vehicle.
Product Features:
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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 engineering that minimizes heat dissipation, ensuring reliable and long-lasting performance under demanding conditions.
Most Popular 2004 Audi A4 Voltage Regulator Parts
Customize your Audi with 4 Voltage Regulator Parts products
like Voltage Regulators, all
priced under $539.99.
Carquest Premium – Voltage Regulator (Part No.RAA3356)
from
$539.99
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:
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Product Features:
- Application matched components ensure the charging system can be returned to like new condition.
Carquest Premium – Voltage Regulator (Part No.RAA1192)
from
$258.99
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:
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Product Features:
- Application matched components ensure the charging system can be returned to like new condition.
Carquest Premium – Voltage Regulator (Part No.RAA1104)
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:
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Product Features:
- Application matched components ensure the charging system can be returned to like new condition.
Carquest Premium – New Voltage Regulator (Part No.RAE1095)
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:
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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.
Top Picks for 2004 Audi A4 Alternator Pulley Parts
Upgrade Audi A4s with top-quality Alternator Pulley Parts parts, including 2 OEM and aftermarket selections for your 2004 model.
Litens – Overrunning Alternator Pulley (OAP) Pulley – Original Equipment Quality (Part No.930013A)
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.
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INA US – ALT DECOUPLER PULLEY (Part No.EA0041)
from
$48.99
ALT DECOUPLER PULLEY
In-Demand Starter Parts for 2004 Audi A4s
Select from 5 premium Starter Parts parts for your 2004 Audi A4, with prices ranging from $228.99 to $348.99.
Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.17778S)
from
$269.99
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:
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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
WAI – Starter: 1.4kW/12 Volt, CW, 9-Tooth Pinion (Part No.17778N)
from
$295.99
Product Features:
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- 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.
Bosch – Starter: Remanufactured (Part No.SR0422X)
from
$348.99
Bosch Premium Starters are designed, built and tested to provide the ultimate in performance and reliability.
Product Features:
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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
Valeo – Volkswagen Passat 1.8L Starter Motor 438072 1998-2005 (Part No.438072)
from
$254.99
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:
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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 438072 is the original equipment part now available in the aftermarket.
Carquest Premium – Starter Solenoid (Part No.SBC1743)
from
$228.99
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.
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Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Top-Rated Alternators and Starters Brands For Your 2004 Audi A4
Shop for the best-rated brands offering Alternators and Starters and other products for your 2004 Audi A4s. 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 2004 A4 start at just $262.99 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 2004 Audi A4 Alternators and Starters
When it comes to maintaining or upgrading your 2004 Audi A4, 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 2004 Audi A4. With over 1 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 $262.99. Plus, with over 9 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.
from
$262.99
(9)
Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty
“Works like a charm.”
FAQs for 2004 Audi A4 Alternators and Starters
Which Alternators and Starters are best-sellers for 2004 Audi A4s?
Out of 19 Alternators and Starters that fit 2004 Audi A4s, the following parts are the top sellers:
- Alternator: New, 150 Amps (12097779) – $343.99
- Alternator: New, 150 Amps, Limited Lifetime Warranty (20851066) – $404.99
- Overrunning Alternator Pulley (OAP) Pulley – Original Equipment Quality (11187575) – $91.99
What’s the price range for 2004 Audi A4 Alternators and Starters?
Alternators and Starter prices for the 2004 Audi A4 start at $48.99 and go up to $564.99 for the most premium parts.
What’s the average price of a Alternators and Starter for a 2004 Audi A4?
The average price for Alternators and Starters for the 2004 Audi A4 is $297.18. 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 Audi A4 model years?
What are the cheapest Alternators and Starters for my 2004 Audi A4?
The cheapest 2004 Audi A4 Alternators and Starters we carry in stock are:
- ALT DECOUPLER PULLEY (50302673) – $48.99
- Overrunning Alternator Pulley (OAP) Pulley – Original Equipment Quality (11187575) – $91.99
- New Voltage Regulator (12450447) – $99.99
- Voltage Regulator (12521228) – $196.99
- Starter Solenoid (12497353) – $228.99
What are the top-rated Alternators and Starters that fit the 2004 Audi A4?
Out of 26 reviews by customers, our 2004 Audi A4 Alternators and Starters have an average customer rating of . These are some of the highest-rated Alternators and Starter types for the 2004 Audi A4 and their top-rated products:
- Alternator Parts
- Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (20850071) – $262.99
- Starter Parts
- Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (20850071) – $262.99
What types of Alternators and Starters do you sell for my 2004 Audi A4?
As of 11/2/25, these are some of the most in-demand types of Alternators and Starters for a 2004 Audi A4:
Can I get help with 2004 Audi A4 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 Audi Alternators and Starters and more.
What is your return policy for Audi A4 Alternators and Starters?
Advance Auto Parts keeps returns simple. For new Audi A4 Alternators and Starters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
