Wehrli Gloss Black Rear Diff Cover

Fits Most Dodge/Ram 6.7L Diesel/5.9L Diesel (03-18)

WCF100113-GB

Overview:

The Wehrli Gloss Black Rear Differential Cover is a high-quality fabricated aluminum upgrade designed specifically for Dodge Ram 2500 and Ram 3500 trucks from 2003 to 2018. Engineered to fit the AAM 11.5-inch rear axle, this differential cover offers enhanced protection and durability for heavy-duty applications. Ideal for owners of Duramax and Cummins-powered trucks, this cover provides a robust solution to safeguard your rear differential against impacts, leaks, and wear during demanding off-road or towing conditions.

With its sleek gloss black finish, the cover not only improves the durability of your axle housing but also adds a custom, aggressive look to your truck’s undercarriage. The Wehrli differential cover is perfect for truck enthusiasts seeking both functional performance and aesthetic enhancement.

Key Features:

Designed with precision and durability in mind, the Wehrli Gloss Black Rear Diff Cover offers the following key features:

• Fabricated from high-strength aluminum for superior impact resistance and heat dissipation
• Custom fit for the AAM 11.5-inch rear axle found in Dodge Ram 2500 and 3500 models (2003–2018)
• Gloss black single-stage powder coating for corrosion resistance and a sleek appearance
• Includes stainless steel hardware to prevent rust and ensure long-lasting fastening
• Integrated stainless steel drain plug for easy differential fluid changes and maintenance
• Engineered to increase fluid capacity, improving cooling and extending differential life
• Precision CNC fabrication ensures perfect fitment and sealing to prevent leaks
• Compatible with heavy-duty trucks powered by Duramax and Cummins engines

Construction & Design:

The Wehrli rear differential cover is crafted from premium aluminum, chosen for its lightweight yet durable properties. This material not only protects the differential from road debris and off-road hazards but also helps dissipate heat more effectively than standard stamped steel covers. The cover’s robust construction is complemented by a gloss black powder coat finish, which provides excellent corrosion resistance and a refined look that complements the rugged style of Dodge Ram trucks.

Every cover is precision fabricated to ensure a perfect seal and fit on the AAM 11.5-inch axle housing. The inclusion of stainless steel hardware and a stainless drain plug further enhances the longevity and maintenance convenience of the product, making it a reliable upgrade for demanding truck owners.

Installation & Fitment:

Installation of the Wehrli Gloss Black Rear Diff Cover is straightforward and designed to be a direct bolt-on replacement for the factory cover. No modifications or special tools are required, making it accessible for both professional mechanics and experienced DIY enthusiasts. The included stainless steel hardware ensures a secure and leak-free installation.

This cover fits Dodge Ram 2500 and 3500 models from 2003 through 2018, covering multiple trims and configurations. It is specifically engineered for trucks equipped with the AAM 11.5-inch rear axle, commonly found in heavy-duty Ram trucks with Duramax or Cummins diesel engines.

What's Included:

• One fabricated aluminum rear differential cover with gloss black powder coat finish
• Stainless steel mounting hardware kit
• Stainless steel drain plug
• Installation instructions

Ideal For:

This differential cover is ideal for Dodge Ram 2500 and 3500 owners who demand enhanced durability and protection for their rear axle. It is especially suited for those who frequently tow heavy loads, engage in off-road driving, or simply want to upgrade their truck’s rear differential with a high-quality, visually appealing component. Owners of trucks powered by Duramax and Cummins engines will benefit from the increased fluid capacity and improved cooling offered by this cover, helping to extend the life of their differential under strenuous conditions.

Wehrli Custom Fabrication (WCFab) is a diesel performance and metal fabrication specialist building upgraded hard parts and engineered solutions for Duramax, Cummins, and Power Stroke trucks. Known for high-quality fabrication and truck-focused product development, WCFab supports everything from tow rigs to race-oriented diesel builds where durability, airflow, and heat management matter.