2021 GMC Yukon XL Alternator Parts

Keep Your 2021 GMC Yukon XL 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 2021 GMC Yukon XL looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including 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 2021 GMC Yukon XL Alternator Part at Advance Auto Parts is around $598.99, with a range that starts at $558.99 and goes up to $618.99. With 2 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Alternator: Remanufactured, 250 Amps and Alternator: Remanufactured, 250 Amps start at just $558.99 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 Alternator Pulley Parts and Starter Parts. At Advance Auto Parts, we’re here to help you keep your 2021 GMC Yukon XL in peak condition, inside and out.

Essential 2021 GMC Yukon XL Alternator Parts

Carquest Premium – Alternator: Remanufactured, 170 Amps, Limited Lifetime Warranty (Part No.10369A)

Alternator: Remanufactured, 170 Amps, Limited Lifetime Warranty

from

$479.99
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
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Carquest Premium – Alternator: Remanufactured, 250 Amps (Part No.10440A)

Alternator: Remanufactured, 250 Amps

from

$558.99
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

Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.11785A)

Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty

from

$431.99
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

Carquest Premium – Alternator: Remanufactured, 170 Amps, Limited Lifetime Warranty (Part No.42093A)

Alternator: Remanufactured, 170 Amps, Limited Lifetime Warranty

from

$528.99
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

Bosch – Alternator: Remanufactured, 170 Amps, 2 Year Limited Warranty (Part No.AL8869X)

Alternator: Remanufactured, 170 Amps, 2 Year Limited Warranty

from

$281.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for demanding automotive needs. With a robust 170-amp output and 12 VDC voltage, this alternator ensures consistent power delivery for your vehicle’s electrical systems. Engineered with precision, it features full-load testing to meet Bosch’s stringent performance standards and is 100% factory tested for quality assurance. Unlike rebuilt units, this alternator is remanufactured using high-quality materials and advanced technology, ensuring long-lasting durability. Its clockwise rotation direction and premium construction make it a dependable replacement part that stands up to rigorous use. Choose this alternator for unmatched value and peace of mind on the road.

Product Features:


    Product Features:
    • Full-load tested to guarantee compliance with Bosch’s strict performance specifications
    • 100% factory tested, units are remanufactured (not rebuilt)
    • Built to last – uses high quality materials and the most technologically advanced developments.
    • Delivers consistent 170-amp output to support demanding vehicle electrical systems.
    • Engineered for durability with premium construction to withstand rigorous use.
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Most Popular Alternators for 2021 GMC Yukon XLs

Enhance your 2021 GMC Yukon XL with one of the 2 Alternators we have in stock, starting at just $558.99.

Carquest Premium – Alternator: Remanufactured, 250 Amps (Part No.10459A)

Alternator: Remanufactured, 250 Amps

from

$618.99
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

Carquest Premium – Alternator: Remanufactured, 250 Amps (Part No.10440A)

Alternator: Remanufactured, 250 Amps

from

$558.99
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

FAQs for 2021 GMC Yukon XL Alternator Parts

What are the best-selling Alternator Parts for 2021 GMC Yukon XLs?

Out of 2 Alternator Parts that fit 2021 GMC Yukon XLs, the following parts are the top sellers:

What’s the price range for 2021 GMC Yukon XL Alternator Parts?

The prices of Alternator Parts for the 2021 GMC Yukon XL range from $558.99 up to $618.99 for the most premium parts.

What is the average price of an Alternator Part for a 2021 GMC Yukon XL?

The average price for Alternator Parts for the 2021 GMC Yukon XL is $598.99. 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 GMC Yukon XL model years?

Yes, we carry Alternator Parts for 7 model years of GMC Yukon XLs between 2015 and 2023. The following model years are the most popular for Alternator Part purchases: 2020, 2019, 2018, 2017, 2016, 2015, 2023, and 2022.

What are the cheapest Alternator Parts for my 2021 GMC Yukon XL?

The cheapest 2021 GMC Yukon XL Alternator Parts we carry are:

Does Advance Auto Parts sell Alternator Parts for any other 2021 GMC models?

Yes. We stock Alternator Parts for 7 other popular 2021 GMC models. Some of the most popular are 2021 Savana 2500 Alternator Parts, 2021 Savana 3500 Alternator Parts, 2021 Canyon Alternator Parts, 2021 Savana 4500 Alternator Parts, and 2021 Acadia Alternator Parts.

What types of Alternator Parts do you sell for my 2021 GMC Yukon XL?

We currently have just 1 Alternator Part in stock for a 2021 GMC Yukon XL, and as of 11/2/25, it is an Alternator.

Can I get help with 2021 GMC Yukon XL Alternator Part orders?

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

What is your return policy for GMC Yukon XL Alternator Parts?

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