Wehrli 100113 Rear AAM 11.5 Differential Cover | 2001-2019 GM 6.6L Duramax 2500HD/3500HD & 03-19 Dodge Ram 5.9L/6.7L Cummins

Features:

• Precision-fabricated aluminum construction for superior strength and heat dissipation

• Direct-fit replacement for AAM 11.5" rear axles

• Includes stainless steel mounting hardware and fill plug

• Custom powder coat finish options available for a personalized look

• Built for durability in heavy-duty and off-road conditions

Upgrade Your Rear Axle with Performance and Style

The Wehrli WCF100113 Rear Differential Cover is a premium upgrade for 2001–2019 GM 2500HD/3500HD Duramax and 2003–2019 Dodge Ram 2500/3500 trucks with 5.9L or 6.7L Cummins engines. Designed to fit AAM 11.5" rear axles, this fabricated aluminum cover not only enhances the look of your undercarriage but also improves heat dissipation and structural integrity under load. It’s ideal for tow rigs, off-road builds, and high-performance diesel applications.

Custom Look with Real Function

This cover is more than just aesthetics — its high-strength aluminum build reduces gear oil temps while withstanding the rigors of towing and aggressive driving. Whether you're hauling heavy loads or upgrading your show truck, this cover gives you the performance benefits and custom styling you want. Available in a range of powder coat finishes to match your build.

Package Includes:

• (1) Wehrli fabricated aluminum differential cover

• Stainless steel mounting hardware

• Fill plug

Specifications:

• Material: Fabricated aluminum

• Axle Compatibility: AAM 11.5" rear

• Finish: Custom powder coat (varies by selection)

• Hardware: Stainless steel

• Drain/Fill Ports: Included

Fitment Notes:

• Fits 2001–2019 GM 2500HD/3500HD with 6.6L Duramax

• Fits 2003–2019 Dodge Ram 2500/3500 with 5.9L or 6.7L Cummins

• For use with trucks equipped with AAM 11.5" rear axles

• May not fit trucks with aftermarket rear axle conversions