2003 Toyota Sienna Alternators

Your 2003 Toyota Sienna might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Alternators you desperately need.

We currently carry 5 Alternators to choose from for your 2003 Toyota Sienna, and our inventory prices range from as little as $177.99 up to $294.99.

On top of low prices, Advance Auto Parts offers 4 different trusted brands of Alternators for the 2003 Toyota Sienna. We only sell parts from trusted brands like Carquest Premium so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 87 reviews on our Alternators for the 2003 Toyota Sienna from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Alternators stock in-person!

Alternators for Your 2003 Toyota Sienna

Carquest Premium – Alternator: Remanufactured, 100 Amps (Part No.13806A)

Alternator: Remanufactured, 100 Amps

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:
  • 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
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Bosch – Alternator: Remanufactured, 100 Amps (Part No.AL3298X)

Alternator: Remanufactured, 100 Amps

from

$177.99
Bosch has been a major supplier of new alternators to Original Equipment vehicle manufacturers since 1913. Securing OE certification requires strict adherence to stringent precision and performance criteria. These same exacting criteria are also applied in the manufacturing of all Bosch aftermarket alternators. Bosch Premium Alternators are quality built and 100% factory tested to ensure years of reliable performance, even under the most extreme operating conditions.

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.
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Carquest Professional – Alternator: New, 100 Amps (Part No.13706AN)

Alternator: New, 100 Amps

from

$294.99
Carquest Professional alternators are 100% new units that are built to meet or exceed original equipment (O.E.) specifications. Our new alternators are engineered and built by an IATF/TS 16949 certified supplier that meets the highest standards achievable. Carquest Professional alternators are re-engineered to include improvements and enhancements (where applicable) to the OE design to extend longevity and service life. Our new alternators are built with all new components and are 100% triple tested to ensure high quality that is backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Manufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • All new components are utilized to ensure long service life
  • Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
  • Internal electronics are upgraded for heavy duty reliability (where applicable)
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
  • Rotors and stators are load tested and double insulated for maximum charging performance
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Bosch – Professional Preferred Alternator, Remanufactured (Part No.F4000133684BOS)

Professional Preferred Alternator, Remanufactured

from

$266.24
Bosch has been a major supplier of new alternators and starters to OE vehicle manufacturers since 1913. Securing OE certification requires strict adherence to stringent precision and performance criteria. These same exacting criteria are also applied in the manufacturing of all Bosch aftermarket alternators and starters. Whether 100% remanufactured or new, Bosch Premium Alternators and Starters are quality built and 100% factory tested to ensure years of reliable performance, even under the most extreme operating conditions. That’s why they are preferred by more professional installers.

Product Features:
  • Built to last using the highest quality materials and the most technologically advanced manufacturing processes
  • Remanufactured using more new parts than any other unit
  • 100% exhaustive multipoint quality and performance testing throughout the remanufacturing process ensures optimum starting and charging performance under all operating conditions
  • Every unit is full-load tested to guarantee compliance with Bosch strict performance specifications
  • Voltage regulator 100% tested for OE voltage specifications (new on GM and Ford)
  • Rectifier 100 % tested (new on Ford)
  • Diodes 100% tested (replaced with new as required)
  • Rotor 100% performance-tested for maximum electrical output
  • 100% new long life sealed bearings with special high load, high temperature grease
  • Stator 100% insulation and phase balance tested
  • Slip rings 100% new or remachined to +/- .05mm, the tightest tolerance in the industry
  • 100% new long life self-lubricating brushes
  • 100% new clutch pulleys
  • All terminals, insulators and hardware provided
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WAI – Alternator: New, 100 Amps (Part No.13806N)

Alternator: New, 100 Amps

from

$215.99
WAI is a leading parts manufacturer for the aftermarket. You’ll find superior quality and performance on all WAI 100% new alternators and starters as well as generators, motors, voltage regulators, rectifiers and other components.
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FAQs for 2003 Toyota Sienna Alternators

What are the most popular Alternators for the 2003 Toyota Sienna?

With 4 brands you can trust, our most popular Alternators for the 2003 Toyota Sienna parts are:
Alternator: Remanufactured, 100 Amps
from $244.99
(19)
Alternator: Remanufactured, 100 Amps
Alternators
Alternator: New, 100 Amps
from $294.99
This product is not rated
Alternator: New, 100 Amps
Alternators
Professional Preferred Alternator, Remanufactured
from $266.24
This product is not rated
Professional Preferred Alternator, Remanufactured
Alternators

What are the best aftermarket Alternators for the 2003 Toyota Sienna?

See what past customers had to say about our highest-rated Alternators for the 2003 Toyota Sienna:
Alternator: Remanufactured, 100 Amps
from $177.99
(10)
Alternator: Remanufactured, 100 Amps
“Got it and put it on and it is making a big difference.”