Wehrli Rear Differential Cover

2019–2024 Ram 2500 / Ram 3500 Cummins

WCF100114-GRY

Overview:

The Wehrli Rear Differential Cover is a precision-engineered upgrade designed specifically for the rear axle of 2019 to 2024 Ram 2500 and Ram 3500 trucks equipped with Cummins diesel engines. Crafted to enhance durability and protection, this fabricated aluminum cover replaces the factory differential cover to provide superior strength and improved fluid capacity. Ideal for truck owners who demand reliability and rugged performance under heavy-duty conditions, the Wehrli cover helps safeguard your differential from impacts, debris, and harsh off-road environments.

Finished in a custom two-stage grey powder coating, this cover not only offers robust protection but also adds a sleek, aggressive look to your truck’s rear axle. Stainless steel hardware and a built-in drain plug make maintenance easier, ensuring your differential fluid changes are clean and efficient.

Key Features:

Designed with both form and function in mind, the Wehrli Rear Differential Cover delivers a range of benefits:

• Fabricated from high-quality aluminum for superior strength and corrosion resistance
• Custom two-stage grey powder coating for long-lasting durability and a refined finish
• Increased fluid capacity to improve differential cooling and lubrication
• Stainless steel hardware included for corrosion resistance and secure fitment
• Integrated drain plug simplifies fluid changes and maintenance
• Precision fitment for 2019–2024 Ram 2500 and 3500 models with Cummins engines
• Enhanced protection against impacts, rocks, and off-road hazards
• Lightweight design minimizes added weight while maximizing strength

Construction & Design:

The Wehrli Rear Differential Cover is expertly fabricated from premium-grade aluminum, chosen for its excellent strength-to-weight ratio and resistance to rust and corrosion. The cover undergoes a meticulous two-stage powder coating process in a custom grey finish, providing a durable protective layer that withstands harsh environmental conditions and road debris. The design incorporates reinforced ribs and a thicker profile compared to OEM covers, offering enhanced structural integrity and impact resistance.

Attention to detail is evident in the inclusion of stainless steel hardware, which prevents rust and ensures a secure, long-lasting installation. The integrated drain plug is strategically positioned for easy access, allowing for quick and clean differential fluid changes without the need to remove the entire cover.

Installation & Fitment:

Installation of the Wehrli Rear Differential Cover is straightforward and designed to be a direct bolt-on replacement for the factory cover on Ram 2500 and 3500 trucks from 2019 through 2024 with Cummins engines. No modifications or special tools are required, making it accessible for both professional installers and experienced DIY enthusiasts. The precision-machined bolt holes and gasket surface ensure a perfect seal to prevent leaks and maintain optimal differential performance.

What's Included:

• One fabricated aluminum rear differential cover with custom grey powder coating
• Complete set of stainless steel mounting hardware
• Integrated stainless steel drain plug
• Installation instructions

Ideal For:

This differential cover is ideal for Ram 2500 and 3500 owners who frequently tow heavy loads, drive off-road, or require enhanced protection and reliability from their drivetrain components. It suits enthusiasts looking to upgrade their truck’s durability without sacrificing style or ease of maintenance. Whether you use your Ram for work, recreation, or daily driving, the Wehrli Rear Differential Cover offers peace of mind and long-term performance benefits.

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.