2018 Subaru WRX STI Alternator Parts

Keep Your 2018 Subaru WRX STI in Top Shape with Quality Alternator Parts

Whether you’re repairing or upgrading your Alternator Part, using high-quality parts is key to keeping your 2018 Subaru WRX STI looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Alternator Miscellaneous Parts, Commutator End Bearings, and Alternators. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2018 Subaru WRX STI Alternator Part at Advance Auto Parts is around $200.82, with a range that starts at $2.99 and goes up to $581.99. With 3 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Ball Bearing and Alternator: New, 110 Amps start at just $2.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Alternator Part, don’t forget to check out other key components like Starter Parts. At Advance Auto Parts, we’re here to help you keep your 2018 Subaru WRX STI in peak condition, inside and out.

Essential 2018 Subaru WRX STI Alternator Parts

Driveworks – Ball Bearing (Part No.S-201-CC)

Ball Bearing

from

$2.99
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Driveworks – Ball Bearing (Part No.SL-203-FF)

Ball Bearing

from

$13.49
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

National – Multi-Purpose Bearing (Part No.201-CC)

Multi-Purpose Bearing

from

$17.49
Product Features:
  • BUILT TO LAST: Advanced heat treatment process for strength
  • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for lasting performance and extended bearing life
  • RELIABLE PERFORMANCE: Element size and quantity are engineered to meet or exceed the load rating of OE bearings
  • COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
See More

Carquest Professional – Alternator: New, 110 Amps (Part No.11613AN)

Alternator: New, 110 Amps

from

$581.99
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:


    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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Carquest Premium – Alternator: Remanufactured, 110 Amps, Limited Lifetime Warranty (Part No.11226A)

Alternator: Remanufactured, 110 Amps, Limited Lifetime Warranty

from

$251.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading limited warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:


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

Most Popular Alternator Miscellaneous Part for 2018 Subaru WRX STIs

Enhance your 2018 Subaru WRX STI with this popular Alternator Miscellaneous Part we have in stock, for $17.49.

National – Multi-Purpose Bearing (Part No.201-CC)

Multi-Purpose Bearing

from

$17.49
Product Features:
  • BUILT TO LAST: Advanced heat treatment process for strength
  • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for lasting performance and extended bearing life
  • RELIABLE PERFORMANCE: Element size and quantity are engineered to meet or exceed the load rating of OE bearings
  • COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
See More

Best-Selling 2018 Subaru WRX STI Commutator End Bearing

Upgrade your WRX STI with our best-selling Commutator End Bearing with a 1 Starts rating across 1 review.

Driveworks – Ball Bearing (Part No.S-201-CC)

Ball Bearing

from

$2.99
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Top-Quality Alternators for 2018 Subaru WRX STIs

Choose a high-quality OEM or aftermarket Alternator for Subaru WRX STIs and enjoy top-notch performance from $581.99.

Carquest Professional – Alternator: New, 110 Amps (Part No.11613AN)

Alternator: New, 110 Amps

from

$581.99
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:


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

FAQs for 2018 Subaru WRX STI Alternator Parts

What are the best-selling Alternator Parts for 2018 Subaru WRX STIs?

Out of 3 Alternator Parts that fit 2018 Subaru WRX STIs, the following parts are the top sellers:

What’s the price range for 2018 Subaru WRX STI Alternator Parts?

The prices of Alternator Parts for the 2018 Subaru WRX STI range from $2.99 up to $581.99 for the most premium parts.

What is the average price of an Alternator Part for a 2018 Subaru WRX STI?

The average price for Alternator Parts for the 2018 Subaru WRX STI is $200.82. Keep in mind the variety of part types within our Alternator Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Alternator Parts for other Subaru WRX STI model years?

Yes, we carry Alternator Parts for 5 model years of Subaru WRX STIs between 2015 and 2021. The following model years are the most popular for Alternator Part purchases: 2021, 2020, 2019, 2017, 2016, and 2015.

What are the cheapest Alternator Parts for my 2018 Subaru WRX STI?

The cheapest 2018 Subaru WRX STI Alternator Parts we carry are:

Does Advance Auto Parts sell Alternator Parts for any other 2018 Subaru models?

Yes. We stock Alternator Parts for 6 other popular 2018 Subaru models. Some of the most popular are 2018 Legacy Alternator Parts, 2018 Outback Alternator Parts, 2018 Impreza Alternator Parts, 2018 Forester Alternator Parts, and 2018 WRX Alternator Parts.

What are the top-rated Alternator Parts that fit the 2018 Subaru WRX STI?

Based on 6 reviews by customers, our 2018 Subaru WRX STI Alternator Parts have an average customer rating of 2 stars. These are the highest-rated categories of Alternator Parts for the 2018 Subaru WRX STI and their top-rated products:

What types of Alternator Parts do you sell for my 2018 Subaru WRX STI?

As of 11/2/25, these are some of the most in-demand types of Alternator Parts for a 2018 Subaru WRX STI:

Can I get help with 2018 Subaru WRX STI Alternator Part orders?

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

What is your return policy for Subaru WRX STI Alternator Parts?

Advance Auto Parts keeps returns simple. For new Subaru WRX STI Alternator Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.