2021 GMC Sierra 2500 HD Engine Blocks

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Keep Your 2021 GMC Sierra 2500 HD in Top Shape with a Quality Engine Block

When it comes to maintaining or upgrading your 2021 GMC Sierra 2500 HD, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Engine Block for your Sierra 2500 HD. We currently carry a top Engine Block in stock that is built to last. Whether you’re replacing a damaged Engine Block or looking to upgrade, our selection for the 2021 GMC Sierra 2500 HD ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Engine Gaskets and Seals and Engine Timing Parts to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 2021 GMC Sierra 2500 HD running smoothly and looking great.

Essential 2021 GMC Sierra 2500 HD Engine Blocks

Dorman – Help – Engine Oil Fill Cap (Part No.80987)

Engine Oil Fill Cap

from

$15.99
This engine oil filter cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this engine oil filter cap is designed to match the fit and function of the original cap on specified vehicles
  • Restores functionality – reliable replacement for an original part that is missing or cracked due to heat and fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Carquest Premium – Engine Oil Filler Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10099)

Engine Oil Filler Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

from

$11.99
Manufactured from high quality components by an OE Supplier. Proper fit and sealing prevents oil loss. Designed to OEM specifications. High quality finish is designed to compliment the engine compartment appearance.

Product Features:
  • Provides proper seal to ensure leak prevention
  • Stops engine blow by
  • High quality construction
  • Meets all OEM specifications
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Carquest Premium – Oil Filler Cap (Part No.10114)

Oil Filler Cap

from

$13.99
Manufactured from high quality components by an OE Supplier. Proper fit and sealing prevents oil loss. Designed to OEM specifications. High quality finish is designed to compliment the engine compartment appearance.

Product Features:
  • Provides proper seal to ensure leak prevention
  • Stops engine blow by
  • High quality construction
  • Meets all OEM specifications
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Dorman – Help – OIL FILL CAP (Part No.90202)

OIL FILL CAP

from

$17.99
OIL FILL CAP

Dorman – Help – Engine Oil Filler Cap (Part No.42315)

Engine Oil Filler Cap

from

$15.99
This engine oil filter cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this engine oil filter cap is designed to match the fit and function of the original cap on specified vehicles
  • Restores functionality – reliable replacement for an original part that is missing or cracked due to heat and fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

aFe POWER – Aluminum Oil Cap (Part No.79-12002)

Aluminum Oil Cap

from

$88.99
Aluminum Oil Cap

Most Popular Oil Cap for 2021 GMC Sierra 2500 HDs

Enhance your 2021 GMC Sierra 2500 HD with this popular Oil Cap we have in stock, for $17.99.

Dorman – Help – OIL FILL CAP (Part No.90202)

OIL FILL CAP

from

$17.99
OIL FILL CAP

FAQs for 2021 GMC Sierra 2500 HD Engine Blocks

What’s the price range for 2021 GMC Sierra 2500 HD Engine Blocks?

We currently have just one Engine Blocks for the 2021 GMC Sierra 2500 HD in stock: OIL FILL CAP and it costs $17.99.

Does Advance Auto Parts sell Engine Blocks for other GMC Sierra 2500 HD model years?

Yes, we carry Engine Blocks for 21 model years of GMC Sierra 2500 HDs between 2001 and 2023. The following model years are the most popular for Engine Block purchases: 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, and 2011.

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

Yes. We stock Engine Blocks for 8 other popular 2021 GMC models. Some of the most popular are 2021 Acadia Engine Blocks, 2021 Canyon Engine Blocks, 2021 Savana 2500 Engine Blocks, 2021 Savana 3500 Engine Blocks, and 2021 Sierra 1500 Engine Blocks.

What types of Engine Blocks do you sell for my 2021 GMC Sierra 2500 HD?

We currently have just 1 Engine Block in stock for a 2021 GMC Sierra 2500 HD, and as of 3/1/26, it is an Oil Cap.

Can I get help with 2021 GMC Sierra 2500 HD Engine Block orders?

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

What is your return policy for GMC Sierra 2500 HD Engine Blocks?

Advance Auto Parts keeps returns simple. For new GMC Sierra 2500 HD Engine Blocks and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.