Wehrli Rear Differential Cover
2003–2018 Dodge Ram 2500 / 3500 | AAM 11.5 Rear Axle | Duramax & Cummins Compatible
WCF100113-CB
Overview:
The Wehrli Candy Blue Rear Differential Cover is a premium fabricated aluminum upgrade designed specifically for Dodge Ram 2500 and 3500 trucks from 2003 to 2010, as well as Ram 2500 and 3500 models from 2011 to 2018 equipped with the AAM 11.5 rear axle. Engineered to enhance durability and protection, this differential cover is ideal for owners of heavy-duty trucks powered by Duramax or Cummins engines who demand superior strength and reliability in demanding driving conditions.
By replacing the factory cover with this custom-designed component, you gain improved differential protection against impacts, debris, and harsh off-road environments, while also benefiting from enhanced fluid capacity and cooling. The vibrant candy blue finish adds a distinctive, high-quality appearance to your truck’s undercarriage.
Key Features:
Built to meet the rigorous demands of heavy-duty truck applications, the Wehrli Rear Differential Cover offers a range of features that improve both function and style:
- Precision fabricated from high-grade aluminum for superior strength and corrosion resistance
- Designed specifically for the AAM 11.5-inch rear axle found in Dodge Ram 2500/3500 and select GM HD trucks
- Increased fluid capacity to improve differential cooling and extend gear oil life
- Vibrant candy blue powder coat finish for long-lasting durability and eye-catching style
- Heavy-duty construction protects the differential housing from rocks, debris, and off-road hazards
- Compatible with Duramax and Cummins diesel engines, ensuring reliable performance under high torque loads
- Easy bolt-on installation with no welding or modifications required
- Precision CNC-machined bolt holes for perfect fitment and leak-free sealing
- Includes drain and fill plugs for convenient maintenance
Construction & Design:
The Wehrli Rear Differential Cover is expertly crafted from thick, high-quality aluminum to provide exceptional impact resistance and structural integrity. Its robust design reinforces the rear differential housing, reducing the risk of damage during off-road excursions or heavy towing. The aluminum construction also aids in dissipating heat more effectively than stock steel covers, helping to maintain optimal operating temperatures for the differential gears and bearings.
The cover’s candy blue powder coat finish not only protects against corrosion and environmental wear but also adds a custom aesthetic that stands out beneath your truck. Every detail, from the CNC-machined bolt pattern to the integrated drain and fill plugs, is engineered for durability and ease of use.
Installation & Fitment:
Installation is straightforward and designed to be a direct replacement for the factory rear differential cover on compatible Dodge Ram and Ram trucks equipped with the AAM 11.5 axle. No welding, cutting, or special tools are required. Simply drain the existing gear oil, remove the stock cover, and bolt on the Wehrli cover using the included hardware. The precision fit ensures a secure, leak-free seal, allowing you to refill with gear oil and get back on the road quickly.
This cover fits the following vehicles:
- Dodge Ram 2500 (2003–2010) including Laramie, SLT, Sport, ST, SXT, TRX, and TRX4 trims
- Dodge Ram 3500 (2003–2010) including Laramie, SLT, Sport, ST, SXT, and TRX4 trims
- Ram 2500 (2011–2018) including Big Horn, Laramie, Laramie Limited, Laramie Longhorn, Limited, Lone Star, Outdoorsman, SLT, ST, and Tradesman trims
- Ram 3500 (2011–2018) including Big Horn, Laramie, Laramie Limited, Laramie Longhorn, Limited, Lone Star, SLT, ST, and Tradesman trims
What's Included:
- Wehrli fabricated aluminum rear differential cover with candy blue powder coat finish
- Drain and fill plugs installed for easy maintenance
- Mounting hardware kit for bolt-on installation
- Installation instructions
Ideal For:
This rear differential cover is perfect for Dodge and Ram truck owners who frequently tow heavy loads, drive off-road, or want to upgrade the durability and appearance of their rear axle assembly. It is especially suited for enthusiasts running Duramax or Cummins diesel engines who require enhanced protection and cooling for their differential under demanding conditions. Whether you’re a weekend adventurer or a professional who relies on your truck daily, this cover offers peace of mind and long-lasting performance.
