The HSP Diesel AAM 11.5 and 12 Inch Rear Differential Cover is built for 2020-2026 Chevrolet / GMC Duramax trucks and 2019-2026 Cummins trucks equipped with the AAM 11.5 and 12 inch rear differential.

Designed as a direct factory replacement, this rear differential cover replaces select factory GM and Mopar differential covers while adding strength, durability, and a clean custom look to the rear end of your truck. The HSP Diesel AAM 11.5 and 12 Inch Rear Differential Cover is a heavy-duty replacement for the factory rear differential cover.

Built from laser-cut, bent, and welded materials, this cover is designed to provide a stronger, more refined solution than the factory cover. With its custom look and powder coat options, the HSP Diesel rear differential cover is a great way to clean up the rear of the truck while matching or contrasting the rest of your build.

Factory Replacement Cross-Reference:

This rear differential cover is designed to replace the following factory part numbers:

• GM Part Numbers: 84757353
• Mopar Part Numbers: 68458937AB, 68458937AA

What's Included:

• (1) 2020-2026 GM / 2019-2026 Ram rear differential cover - HSP-IN-026
• (1) 1/2 inch drain plug - RFB-511-RFAB
• (14) M8x1.25 Bolt, 25mm lg - (RFB-511-RFAB)

Vehicle Fitment:

• L5P: 2020-2026 Chevrolet / GMC 2500HD / 3500HD 6.6L Duramax - VIN Code Y
• 6.7L Cummins: 2019-2026 Ram 2500 / 3500 - VIN Code L

Special Note:

This differential cover fits AAM 11.5/12 inch rear differentials only. If you are unsure of your fitment, use the OEM part numbers listed above as a cross-reference before ordering.

Our Warranty:

HSP No BS Limited Lifetime Warranty:

At HSP, we believe in our products and stand firmly behind every part that leaves our facility. We have always supported our customers, and the HSP No BS Limited Lifetime Warranty makes that commitment official.

Features and Benefits:

• Fits AAM 11.5/12 inch rear differentials on 2500 and 3500 trucks only
• Direct replacement for select factory GM and Mopar rear differential covers
• Laser-cut, bent, and welded construction
• Increased strength compared to the factory-style cover
• Custom powder coat options available
• Cleans up the rear end with a bold, custom look
• Includes 1/2 inch drain plug
• Made for 2020-2026 Chevy/GMC L5P Duramax and 2019-2026 Ram Cummins applications

Details:

• Fits: 2020-2026 Chevy/GMC 2500HD/3500HD/2019-2026 Ram 2500/3500
• Finish: Powdercoat
• Liter: 6.6 Liter, 6.7 Liter
• Fuel Type: Diesel
• Engine Manufacturer: Duramax, Cummins
• Engine Designation: L5P
• Warranty: Limited Lifetime Warranty
• Emissions: 50 State / Exempt
• Color: Illusion Blueberry
• Vehicle Make: Chevy / GMC, Dodge / Ram
• Vehicle Model: Duramax L5P 20-26, Cummins 19-25 6.7L
• Vehicle Year: 2019-2026
• Position: Rear