2003 GMC Sierra 2500 HD Differential Covers

Enhance and Protect Your 2003 GMC Sierra 2500 HD with Quality Differential Covers

Maintaining the performance of your 2003 GMC Sierra 2500 HD starts with choosing the right parts, and a high-quality Differential Cover helps ensure a reliable and efficient vehicle. At Advance Auto Parts, we offer Differential Covers specifically for the 2003 GMC Sierra 2500 HD, ensuring a perfect fit and lasting durability. Choosing to shop with Advance Auto Parts means you’re making a smart decision to prioritize both quality and reliability for your vehicle.

Affordable and Reliable Differential Covers for Every Budget

Finding a Differential Cover that combines quality with affordability is easy at Advance Auto Parts. With prices starting as low as $26.49 and an average price of $154.57, you can choose one that fits your budget while delivering the quality you expect. Our Differential Covers are competitively priced, ranging from $26.49 to $414.99, so you get value without compromising on strength or reliability.

Trusted Brands and Top-Rated Options

With 12 Differential Covers from 5 trusted brands in stock, Advance Auto Parts has you covered. Our Differential Covers for the 2003 GMC Sierra 2500 HD have earned reviews from over 448 customers, with an average 5 stars rating across the board. Popular options include Rear Differential Cover, Rear Differential Cover, and Rear Differential Cover, starting at $36.99. Our selection includes highly regarded brands such as Dorman, Yukon Gear, and ATP, and more, offering you top-notch reliability. For example, we have 3 Dorman Differential Covers starting at $36.99 with an average rating of 4 stars, 3 Yukon Gear options from $92.99 with a 3 stars rating, and 1 ATP Differential Covers priced from $40.99 with a 4 stars average rating.

Explore Related Parts for a Complete Solution

To further enhance your 2003 GMC Sierra 2500 HD, don’t miss our related parts categories, including Differential Oil and Rear Differential Cover Gaskets. These additions will round out your repair or upgrade project and ensure your vehicle is ready for any adventure.

Differential Covers for Your 2003 GMC Sierra 2500 HD

Dorman – Rear Differential Cover (Part No.697-711)

Rear Differential Cover

from

$55.99
This direct replacement differential cover matches the fit and function of the original equipment diff cover for a reliable, leak-free repair. It features a durable design, made to strict specifications, to help ensure reliable service life.

Product Features:
  • Direct replacement – this differential cover matches the fit and function of the original equipment diff cover on select vehicles
  • Reliable repair – the smart solution for fixing an existing cover that’s rusted, damaged or leaking differential fluid
  • Durable construction – this differential cover is made according to strict engineering standards to help ensure dependability
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Dorman – Rear Differential Cover (Part No.697-712)

Rear Differential Cover

from

$77.99
This direct replacement differential cover matches the fit and function of the original equipment diff cover for a reliable, leak-free repair. It features a durable design, made to strict specifications, to help ensure reliable service life.

Product Features:
  • Direct replacement – this differential cover matches the fit and function of the original equipment diff cover on select vehicles
  • Reliable repair – the smart solution for fixing an existing cover that’s rusted, damaged or leaking differential fluid
  • Durable construction – this differential cover is made according to strict engineering standards to help ensure dependability
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Rear Differential Cover (Part No.697-703)

Rear Differential Cover

from

$36.99
This direct replacement differential cover matches the fit and function of the original equipment diff cover for a reliable, leak-free repair. It features a durable design, made to strict specifications, to help ensure reliable service life.

Product Features:
  • Direct replacement – this differential cover matches the fit and function of the original equipment diff cover on select vehicles
  • Reliable repair – the smart solution for fixing an existing cover that’s rusted, damaged or leaking differential fluid
  • Durable construction – this differential cover is made according to strict engineering standards to help ensure dependability
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Yukon Gear – Steel Cover For Chrysler & GM 11.5", With O Fill Plug (Part No.32330)

Steel Cover For Chrysler & GM 11.5", With O Fill Plug

from

$146.99
Product Features:
  • Fits GM and Chrysler 11.5″
  • Steel
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Yukon Gear – Finned Aluminum Cover For Dodge & GM 11.5" Aam Rear Axle (Part No.32346)

Finned Aluminum Cover For Dodge & GM 11.5" Aam Rear Axle

from

$389.99
Product Features:
  • Fits Chrysler and GM 11.5″
  • Finned aluminum
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Yukon Gear – Steel Cover For GM 10.5" 14 Bolt Truck (Part No.32345)

Steel Cover For GM 10.5" 14 Bolt Truck

from

$92.99
Product Features:
  • Fits GM 10.5″ 14 bolt truck
  • Steel
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ATP – DIFF COVER KIT (Part No.111104)

DIFF COVER KIT

from

$40.99
DIFF COVER KIT

aFe POWER – Differential Cover (Part No.46-71061B)

Differential Cover

from

$414.99
aFe Power’s new rear differential cover brings performance engineering to the protection of your axle’s differential. This differential cover is constructed out of durable cast aluminum with reinforced ribs for maximum strength. This cover comes with all necessary hardware for easy installation. Pro Series differential covers include an oil level sight glass and magnetic deep reach fill plug. This cover is finished with black powder-coating and machined fins for a distinctive look. PRO Guard D2 Synthetic 75W-90 Gear Oil: The supplied gear oil (4 quarts) exceeds the performance requirements of API GL-5 recommended for both open and limited slip applications. Increased Oil Capacity: This cover has an increased oil capacity over stock for better performance over a longer duration. Built-in Internal/External Fins: Built-in internal and external fins transfer heat from the oil to the outside air for maximum cooling. Magnetic Plugs: This system incorporates a magnetic drain and deep reach fill plug to capture loose particles for maximum protection. Calibration Plug: Calibration plug set to the factory oil level to eliminate overfilling. Oil Level Sight Glass: A pre-installed oil level sight glass allows quick and easy oil inspection. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Product Features:
  • Durable Cast Aluminum
  • Magnetic Drain and Fill Plugs Capture Loose Particles
  • Calibration Plug Set to Factory Fill Level Eliminates Overfilling
  • Oil Level Sight Glass for Quick/Easy Inspection
See More

aFe POWER – Differential Cover (Part No.46-70372)

Differential Cover

from

$355.99
aFe Power’s new rear differential cover brings performance engineering to the protection of your axle’s differential. This differential cover is constructed out of durable A356-T6 cast aluminum with reinforcing ribs for maximum strength. Mounting hardware is included for a hassle-free installation. An oil level sight glass and calibration plug set to the factory level prevents overfilling of the differential. A magnetic drain plug and a deep reach magnetic fill plug are provided for maximum protection. This cover is finished in black powder-coating with machined fins for a distinctive look. 4 Quart Gear Oil Capacity: This cover has about a 4 quart gear oil capacity at the factory fill level, factory cover holds about 3 quarts. Built-in External Fins: Built-in external fins transfer heat from the fluid to the outside air for maximum cooling. Magnetic Drain/Fill Plug: This system incorporates a magnetic drain and deep reach fill plug that captures loose particles for maximum rear-end protection. Oil Level Sight Glass: Large oil level sight glass with 1/8” NPT calibration plug set to the factory fluid level to eliminate overfilling. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Product Features:
  • Constructed of Durable A356 Die Cast Aluminum
  • Reinforcing Ribs and Black Powder coating w/Machined Fins
  • Magnetic Drain and Fill Plugs Capture Loose Particles
  • Large Oil Level Sight Glass w/ Calibration Plug
See More

aFe POWER – Differential Cover (Part No.46-71060B)

Differential Cover

from

$355.99
aFe Power’s new rear differential cover brings performance engineering to the protection of your axle’s differential. This differential cover is constructed out of durable cast aluminum with reinforced ribs for maximum strength. This cover comes with all necessary hardware for easy installation. Pro Series differential covers include an oil level sight glass and magnetic deep reach fill plug. This cover is finished with black powder-coating and machined fins for a distinctive look. Increased Oil Capacity: This cover has an increased oil capacity over stock for better performance over a longer duration. Built-in Internal/External Fins: Built-in internal and external fins transfer heat from the oil to the outside air for maximum cooling. Magnetic Plugs: This system incorporates a magnetic drain and deep reach fill plug to capture loose particles for maximum protection. Calibration Plug: Calibration plug set to the factory oil level to eliminate overfilling. Oil Level Sight Glass: A pre-installed oil level sight glass allows quick and easy oil inspection. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Product Features:
  • Durable Cast Aluminum
  • Magnetic Drain and Fill Plugs Capture Loose Particles
  • Calibration Plug Set to Factory Fill Level Eliminates Overfilling
  • Oil Level Sight Glass for Quick/Easy Inspection
See More

aFe POWER – Differential Cover (Part No.46-70370)

Differential Cover

from

$289.99
aFe Power’s new rear differential cover brings performance engineering to the protection of your axle’s differential. This differential cover is constructed out of durable A356-T6 cast aluminum with reinforcing ribs for maximum strength. Mounting hardware is included for a hassle-free installation. A calibration plug set to the factory level prevents overfilling of the differential. A magnetic drain plug and a deep reach magnetic fill plug are provided for maximum protection. This cover has a raw finish with machined fins for a distinctive look. 4 Quart Gear Oil Capacity: This cover has about a 4 quart gear oil capacity at the factory fill level, factory cover holds about 3 quarts. Built-in External Fins: Built-in external fins transfer heat from the fluid to the outside air for maximum cooling. Magnetic Drain/Fill Plug: This system incorporates a magnetic drain and deep reach fill plug that captures loose particles for maximum rear-end protection. Oil Level calibration plug: A 1/8″ NPT calibration plug is set to the factory fluid level which eliminates accidental overfilling. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Product Features:
  • Constructed of Durable A356-T6 Cast Aluminum
  • Reinforcing Ribs w/ a Raw Finish and Machined Fins
  • Magnetic Drain and Fill Plugs Capture Loose Particles
  • Calibration Plug Set to Factory Fluid Level
See More

Pro-King – Differential Carrier Cover (Part No.743B758)

Differential Carrier Cover

from

$26.49
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
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FAQs for 2003 GMC Sierra 2500 HD Differential Covers

Which Differential Covers are the top sellers for the 2003 GMC Sierra 2500 HD?

Out of 12 Differential Covers that fit 2003 GMC Sierra 2500 HDs, the following parts are the top sellers:
Rear Differential Cover
from $36.99
(15)
Rear Differential Cover
Differential Covers
Rear Differential Cover
from $55.99
(11)
Rear Differential Cover
Differential Covers
Rear Differential Cover
from $77.99
(2)
Rear Differential Cover
Differential Covers

How can I make sure that a part will be compatible with my 2003 GMC Sierra 2500 HD?

Our GMC Sierra 2500 HD aftermarket and OEM parts are designed specifically for the 2003 model. You can always find your specific fitment and compatibility for your 2003 GMC on an individual product page.

What is the price range for 2003 GMC Sierra 2500 HD Differential Covers?

The range of prices of Differential Covers for the 2003 GMC Sierra 2500 HD goes from $26.49 up to $414.99 for the most premium parts.

What is the average price of a 2003 GMC Sierra 2500 HD Differential Cover?

2003 GMC Sierra 2500 HD Differential Covers average $154.57 for our selection of OEM and aftermarket parts. Keep in mind the variety of brands we offer, such as Dorman, Yukon Gear, ATP, and more, so you are likely to find a wide range of prices across a variety of brands and products.

Does Advance Auto Parts sell Differential Covers for other GMC Sierra 2500 HD model years?

Yes, we currently stock Differential Covers for 19 model years of GMC Sierra 2500 HDs, from 2001 to 2020. Model years 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, and 2012 are the most popular for Differential Cover purchases.

Can I get help with 2003 GMC Sierra 2500 HD Differential Cover orders?

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

What is your return policy for GMC Sierra 2500 HD Differential Covers?

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