HSP DIESEL 2001-2019 CHEVY/GMC DURAMAX 2003-2018 DODGE RAM CUMMINS AAM 11.5" REAR DIFFERENTIAL COVER

HSP Diesel AAM 11.5 Inch Rear Differential Cover for 2001-2019 Chevy/GMC Duramax and 2003-2018 Dodge/Ram Cummins

The HSP Diesel AAM 11.5 Inch Rear Differential Cover is built for 2001-2019 Chevrolet / GMC Duramax trucks and 2003-2018 Dodge/Ram Cummins trucks equipped with the AAM 11.5 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.

What Is the HSP Diesel AAM 11.5 Inch Rear Differential Cover?

The HSP Diesel AAM 11.5 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: 12471445, 20984339, 23445891
• Mopar Part Numbers: 5086904AD, 5086904AB, 5086904AC

Features

• Fits AAM 11.5 inch rear differentials 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 2001-2019 Chevy/GMC Duramax and 2003-2018 Dodge/Ram Cummins applications

What’s Included?

• (1) 2001-2019 GM / 2003-2018 Dodge rear differential cover - HSP-IN-060
• (1) 1/2 inch drain plug - RFB-511-RFAB

Vehicle Fitment

• LB7: 2001-Early 2004 Chevrolet / GMC 6.6L Duramax - VIN Code 1
• LLY: 2004.5-2006 Chevrolet / GMC 6.6L Duramax - VIN Code 2
• LBZ: 2006-2007 Chevrolet / GMC 6.6L Duramax - VIN Code D
• LMM: 2007.5-2010 Chevrolet / GMC 6.6L Duramax - VIN Code 6
• LML: 2011-2016 Chevrolet / GMC 6.6L Duramax - VIN Code 8
• L5P: 2017-2019 Chevrolet / GMC 6.6L Duramax - VIN Code Y
• 5.9L Cummins: 2003-2004 Dodge Ram - VIN Code 6 or C
• 5.9L Cummins: 2005-2007 Dodge Ram - VIN Code C
• 6.7L Cummins: 2007.5-2008 Dodge Ram - VIN Code A
• 6.7L Cummins: 2009-2018 Dodge/Ram - VIN Code L

Special Note

This differential cover fits AAM 11.5 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.

For complete information about warranty coverage, policies, exclusions, and the claims process, review the full warranty details using the link below.

View the HSP No BS Limited Lifetime Warranty