2003 Toyota Sienna Alternators and Starters
Find Your Specific 2003 Toyota Sienna Alternators and Starters
Below you will find various in-demand Toyota Alternators and Starters, components and accessories for your 2003 Sienna. Advance Auto Parts has popular Sienna parts like Starter Parts, Voltage Regulator Parts, Ignition Lock Parts and more. You’ll also find aftermarket and OEM Alternators and Starters for other Sienna model years including
2012,
2013,
2014,
2015,
2016,
2017,
2018,
2019,
2020 and more. Select a category of 2003 Toyota Sienna Alternators and Starters below and start saving instantly.
Popular 2003 Toyota Sienna Alternators and Starters Categories
Essential Alternators and Starters for 2003 Toyota Siennas
Carquest Premium – Ignition Lock Cylinder (Part No.CSA2257)
from
$121.99
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.
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- 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.
Carquest Premium – Ignition Lock Cylinder (Part No.CSC1426)
from
$71.99
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:
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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.
Carquest Premium – Ignition Lock Cylinder (Part No.CSA3793)
from
$362.99
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:
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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.
Carquest Premium – Ignition Lock Cylinder (Part No.CSC2455)
from
$302.99
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:
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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.
Carquest Premium – Starter Solenoid (Part No.SBC1766)
from
$147.99
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.
Carquest Premium – Starter Solenoid (Part No.SBC2014)
from
$69.99
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:
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Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Carquest Premium – Starter Solenoid (Part No.SAE4951)
from
$93.99
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:
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Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Carquest Premium – Voltage Regulator (Part No.RAA1202)
from
$215.99
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.RAC3084)
from
$109.99
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 – Starter: Remanufactured, Limited Lifetime Warranty (Part No.17825S)
from
$184.99
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.
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Carquest Standard – Starter: Remanufactured, 1 Year Limited Warranty (Part No.17774SV)
from
$139.99
Carquest Standard starters are designed and built to meet original equipment (O.E.) specifications, while providing great value. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. All of our Carquest Standard starters are inspected and 100% tested to ensure they are built to meet OEM fit, form and function. 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 OE specifications for fit, form and function
- Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
- 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: 100% NEW (Part No.17774N)
from
$171.99
WAI 100% NEW starters are built by an OE manufacturer with 100% new components to ensure the highest level of quality and the latest technology that meet the tightest tolerances and specifications. WAI 100% NEW starters are built with unmatched quality to deliver exceptional durability and reliability. They are designed to meet or exceed OE performance, fit, form, and function right out of the box, and are specifically designed to deliver unmatched starting power and a long service life. Our premium, easy-to-install starter is built to fit your vehicle and backed by a limited warranty.
Product Features:
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Product Features:
- 100% NEW unit and all components.
- 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.SR3279X)
from
$286.99
Bosch Premium Starters are designed, built and tested to provide the ultimate in performance and reliability
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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
- Automotive starters and alternators are backed by the Bosch Ultimate Protection Plan when unit is registered at the time of purchase: 2 year, 24 hour Roadside assistance; vehicle is jumped or towed for free up to 50 miles
Carquest Standard – Starter: Remanufactured, 1 Year Limited Warranty (Part No.17825SV)
from
$139.99
Carquest Standard starters are designed and built to meet original equipment (O.E.) specifications, while providing great value. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. All of our Carquest Standard starters are inspected and 100% tested to ensure they are built to meet OEM fit, form and function. 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 OE specifications for fit, form and function
- Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
- 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
- Designed to meet OE specifications for fit, form and function
- Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
- Application-specific technical bulletins included where applicable
- All units are 100% triple tested to ensure quality and performance
Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.17774S)
from
$189.99
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
Bosch – Alternator: Remanufactured, 150 Amps, 2 Year Limited Warranty (Part No.AL3364X)
from
$287.99
The Bosch Premium Alternator, remanufactured to deliver 150 amps of power, is engineered for exceptional performance and reliability. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures consistent and dependable operation. With a 12 VDC voltage rating and a clockwise rotation direction, it is designed to integrate seamlessly into your vehicle’s electrical system. Unlike rebuilt units, this alternator is 100% factory tested and remanufactured using high-quality materials and cutting-edge technology, ensuring durability and long-lasting performance. Whether you’re upgrading or replacing, this alternator offers superior value by combining advanced engineering with robust construction 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.
- Seamless integration into your vehicle’s electrical system with a 12 VDC voltage rating and clockwise rotation direction.
- Engineered for exceptional reliability, ensuring consistent operation and long-lasting performance.
Product Features:
Bosch – Alternator: Remanufactured, 130 Amps, 2 Year Limited Warranty (Part No.AL3315X)
from
$263.99
The Bosch Premium Alternator, delivering 130 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, guaranteeing long-lasting durability. Designed with a clockwise rotation direction, it is built to seamlessly integrate into your vehicle’s electrical system. Whether you’re replacing a worn-out alternator or upgrading for enhanced performance, this Bosch alternator offers unmatched value and peace of mind.
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.
- Seamlessly integrates with your vehicle’s electrical system for optimal compatibility and performance.
- Engineered for dependable operation under demanding conditions, ensuring reliability and peace of mind.
Product Features:
Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.11404A)
from
$244.99
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:
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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
WAI – Alternator: 100% NEW, 100 Amps (Part No.13806N)
from
$215.99
This 100% NEW 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 guards 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 long-lasting efficiency, this alternator delivers exceptional value for your vehicle’s electrical system.
Product Features:
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Product Features:
- 100% NEW unit and all components.
- 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 reliable performance even under demanding conditions.
- Rigorously tested for reliability and durability, ensuring consistent performance and peace of mind for long-term use.
Bosch – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.AL3369X)
from
$323.99
The Bosch Premium Alternator is engineered for top-tier performance and reliability, making it a trusted choice for your vehicle’s electrical system. With a robust 150-amp output and 12 VDC voltage, this alternator ensures consistent power delivery for demanding applications. It is remanufactured, not rebuilt, and undergoes 100% factory testing to meet Bosch’s stringent performance standards. Constructed with high-quality aluminum and advanced technology, it is built to withstand the test of time. The clockwise rotation direction ensures compatibility with a wide range of vehicles. Whether you’re replacing a worn-out alternator or upgrading for better performance, this unit delivers exceptional durability and value.
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.
- Designed with a robust 150-amp output to ensure reliable power delivery for high-demand electrical systems.
- Clockwise rotation direction enhances compatibility with a broad range of vehicle models.
Product Features:
Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.13981A)
from
$199.99
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:
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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
Carquest Premium – Alternator Brush Set (Part No.XAA1011)
from
$25.49
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 – Alternator Brush Set (Part No.XAA1003)
from
$35.99
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.
Upgrade your 2003 Toyota Sienna with Top-Quality Alternators and Starters
When it comes to maintaining or upgrading your 2003 Toyota Sienna, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Toyota or enhancing its overall performance, Alternators and Starters are key to keeping your Sienna functioning at its best. At Advance Auto Parts, we offer a wide selection of 13 Alternators and Starters for the 2003 Toyota Sienna, designed to meet your needs without breaking the bank.
From
Starter 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 2003 Toyota Sienna at great prices.
Our Alternators and Starters inventory for this model
ranges from just $35.99 to $284.99, with
an average price of $169.22.
Our 13 Alternators and Starters in stock come from 5 trusted brands, so you’re sure to find the right part for your 2003 Toyota Sienna 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 Toyota Sienna, we stock popular OEM and aftermarket Alternators and Starters from top names
like Bosch, Carquest Premium, Carquest, and more.
Bosch Alternators and Starters
start at just $177.99 and boast an impressive 4.7 stars average rating from customers.
Carquest Premium and Carquest also bring quality to the table, with Alternators and Starters available starting at $139.99, and at an average 4.4 stars rating.
With 468 customer reviews and counting, our 2003 Toyota Sienna 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 Toyota Sienna is always ready to roll. We’re committed to providing you with everything you need to keep your Sienna in top shape, all in one place.
Start shopping confidently below for your 2003 Toyota Sienna!
Best-Selling Starter Parts for 2003 Toyota Siennas
Enhance the driving experience in your Toyota with 6 quality Starter Part components, starting at $93.99.
Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.17774S)
from
$189.99
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:
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
- 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
Carquest Standard – Starter: Remanufactured, 1 Year Limited Warranty (Part No.17774SV)
from
$139.99
Carquest Standard starters are designed and built to meet original equipment (O.E.) specifications, while providing great value. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. All of our Carquest Standard starters are inspected and 100% tested to ensure they are built to meet OEM fit, form and function. 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 OE specifications for fit, form and function
- Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
- 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
Carquest Professional – Starter: New, Limited Lifetime Warranty (Part No.17825SN)
from
$239.99
Carquest Professional starters are 100% new units that are built to meet or exceed original equipment (O.E.) specifications. Our new starters are engineered and built by an IATF/TS 16949 certified supplier that meets the highest standards achievable. Carquest Professional starters are re-engineered to include improvements and enhancements (where applicable) to the OE design to extend longevity and service life. Our new starters 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:
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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
- Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
- All new components are utilized to ensure long service life
- Internal electronics are upgraded for heavy duty reliability (where applicable)
- Armatures and commutators are 100% load tested
- 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
- 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
- Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
- All new components are utilized to ensure long service life
- Internal electronics are upgraded for heavy duty reliability (where applicable)
- Armatures and commutators are 100% load tested
- 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
Bosch – Starter: Remanufactured (Part No.SR3274X)
from
$247.99
Bosch Premium Starters are designed, built and tested to provide the ultimate in performance and reliability
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- 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
- Automotive starters and alternators are backed by the Bosch Ultimate Protection Plan when unit is registered at the time of purchase: 2 year, 24 hour Roadside assistance; vehicle is jumped or towed for free up to 50 miles
WAI – Starter: 100% NEW (Part No.17774N)
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$171.99
WAI 100% NEW starters are built by an OE manufacturer with 100% new components to ensure the highest level of quality and the latest technology that meet the tightest tolerances and specifications. WAI 100% NEW starters are built with unmatched quality to deliver exceptional durability and reliability. They are designed to meet or exceed OE performance, fit, form, and function right out of the box, and are specifically designed to deliver unmatched starting power and a long service life. Our premium, easy-to-install starter is built to fit your vehicle and backed by a limited warranty.
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- 100% NEW unit and all components.
- 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.
Carquest Premium – Starter Solenoid (Part No.SAE4951)
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$93.99
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 constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Most Popular 2003 Toyota Sienna Voltage Regulator Parts
Customize your Toyota with 1 Voltage Regulator Parts products
like Voltage Regulators, all
priced under $109.99.
Carquest Premium – New Voltage Regulator (Part No.RAC3084)
from
$109.99
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.
Top Picks for 2003 Toyota Sienna Ignition Lock Parts
Upgrade Toyota Siennas with top-quality Ignition Lock Parts parts, including 2 OEM and aftermarket selections for your 2003 model.
Carquest Premium – Ignition Lock Cylinder (Part No.CSC2282)
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$218.99
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.
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- 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.
Carquest Premium – Ignition Lock Cylinder (Part No.CSC1426)
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$71.99
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.
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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.
In-Demand Alternator Parts for 2003 Toyota Siennas
Select from 4 premium Alternator Parts parts for your 2003 Toyota Sienna, with prices ranging from $35.99 to $284.99.
Carquest Premium – Alternator: Remanufactured, 100 Amps, Limited Lifetime Warranty (Part No.13806A)
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.
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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
Bosch – Alternator: Remanufactured, 100 Amps, 2 Year Limited Warranty (Part No.AL3298X)
from
$177.99
The Bosch Premium Alternator is engineered for exceptional performance and reliability, making it a trusted choice for your vehicle’s electrical system. With a robust 100-amp output and 12 VDC voltage, this alternator ensures consistent power delivery to meet your vehicle’s demands. It features full-load testing to meet Bosch’s stringent performance standards, guaranteeing dependable operation. Unlike rebuilt units, this alternator is 100% factory-tested and remanufactured using high-quality materials and cutting-edge technology, ensuring long-lasting durability. Designed with a clockwise rotation direction, it is built to handle the toughest conditions while maintaining peak efficiency. Choose this alternator for a reliable, high-performance solution that delivers outstanding value and peace of mind.
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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 peak efficiency, the clockwise rotation design ensures optimal performance under demanding conditions.
- Delivers consistent 100-amp power output to reliably support your vehicle’s electrical system needs.
Carquest Premium – Alternator Brush Set (Part No.XAA1003)
from
$35.99
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.
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- Application matched components ensure the charging system can be returned to like new condition.
WAI – Alternator: 100% NEW, 100 Amps (Part No.13806N)
from
$215.99
This 100% NEW 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 guards 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 long-lasting efficiency, this alternator delivers exceptional value for your vehicle’s electrical system.
Product Features:
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Product Features:
- 100% NEW unit and all components.
- 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 reliable performance even under demanding conditions.
- Rigorously tested for reliability and durability, ensuring consistent performance and peace of mind for long-term use.
Top-Rated Alternators and Starters Brands For Your 2003 Toyota Sienna
Shop for the best-rated brands offering Alternators and Starters and other products for your 2003 Toyota Siennas. Below you’ll find some of our best rated Alternators and Starters from Bosch, Carquest Premium, and Carquest, and more. Alternators and Starters from these brands that fit a 2003 Sienna start at just $139.99 and are rated as high as 4.7 stars. OEM and aftermarket Alternators and Starters don’t get more top quality, durable, and affordable than from the brands below.
Popular Bosch 2003 Toyota Sienna Alternators and Starters
When it comes to maintaining or upgrading your 2003 Toyota Sienna, using quality Alternators and Starters is essential to ensure durability and a perfect fit. Bosch ticks all of those boxes. We offer a wide selection of Bosch Alternators and Starters, specifically designed for the 2003 Toyota Sienna. With over 1 Bosch 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 $177.99. Plus, with over 10 customer reviews and an average rating of 4.7 stars, you can trust that our Bosch 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.
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$177.99
(10)
Alternator: Remanufactured, 100 Amps, 2 Year Limited Warranty
“Got it and put it on and it is making a big difference.”
Popular Carquest Premium 2003 Toyota Sienna Alternators and Starters
Carquest Premium auto parts is one of the highest quality Alternators and Starter brands in the market. Any 2003 Toyota Sienna owner should feel confident when installing genuine Carquest Premium parts in their vehicle. To ensure the best fit and performance for your 2003 Sienna, Advance Auto Parts carries a full inventory of 2 Carquest Premium Alternators and Starters. Plus you will be keeping your Toyota in peak condition while saving money because prices on these Carquest Premium Alternators and Starters range from $189.99 to $284.99, plus, with more than 131 customer reviews and an impressive 4.4 stars average rating, you can be confident the Fram Alternators and Starters below will deliver on both quality and value.
from
$284.99
(19)
Alternator: Remanufactured, 100 Amps, Limited Lifetime Warranty
“Not much to say here. Product was as discribed and works good.”
FAQs for 2003 Toyota Sienna Alternators and Starters
Which Alternators and Starters are best-sellers for 2003 Toyota Siennas?
Out of 13 Alternators and Starters that fit 2003 Toyota Siennas, the following parts are the top sellers:
- Starter: New, Limited Lifetime Warranty (12186870) – $239.99
- Ignition Lock Cylinder (12541904) – $218.99
- Alternator Brush Set (12443387) – $35.99
What’s the price range for 2003 Toyota Sienna Alternators and Starters?
Alternators and Starter prices for the 2003 Toyota Sienna start at $35.99 and go up to $284.99 for the most premium parts.
What’s the average price of a Alternators and Starter for a 2003 Toyota Sienna?
The average price for Alternators and Starters for the 2003 Toyota Sienna is $169.22. 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 Toyota Sienna model years?
What are the cheapest Alternators and Starters for my 2003 Toyota Sienna?
The cheapest 2003 Toyota Sienna Alternators and Starters we carry in stock are:
- Alternator Brush Set (12443387) – $35.99
- Ignition Lock Cylinder (12525990) – $71.99
- Starter Solenoid (12497258) – $93.99
- New Voltage Regulator (12450649) – $109.99
- Starter: Remanufactured, 1 Year Limited Warranty (21290498) – $139.99
What are the top-rated Alternators and Starters that fit the 2003 Toyota Sienna?
Out of 468 reviews by customers, our 2003 Toyota Sienna Alternators and Starters have an average customer rating of . These are some of the highest-rated Alternators and Starter types for the 2003 Toyota Sienna and their top-rated products:
- Starter Parts
- Starter: Remanufactured, 1 Year Limited Warranty (21290498) – $139.99
- Starter: Remanufactured, Limited Lifetime Warranty (19840188) – $189.99
- Alternator Parts
- Starter: Remanufactured, 1 Year Limited Warranty (21290498) – $139.99
- Starter: Remanufactured, Limited Lifetime Warranty (19840188) – $189.99
What types of Alternators and Starters do you sell for my 2003 Toyota Sienna?
As of 3/1/26, these are some of the most in-demand types of Alternators and Starters for a 2003 Toyota Sienna:
Can I get help with 2003 Toyota Sienna 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 Toyota Alternators and Starters and more.
What is your return policy for Toyota Sienna Alternators and Starters?
Advance Auto Parts keeps returns simple. For new Toyota Sienna Alternators and Starters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
