ATS Diesel Rear Differential Cover

1999–2012 Dodge Ram 2500 / 1999–2012 Dodge Ram 3500

4029156248

Overview:

The ATS Diesel Rear Differential Cover is a heavy-duty upgrade designed specifically for Dodge Ram 2500 and 3500 models from 1999 through 2012. Engineered to protect the rear differential from damage caused by off-road obstacles, road debris, and heavy-duty use, this cover is an essential component for truck owners who demand durability and reliability. Ideal for both work trucks and performance builds, it enhances the longevity of your axle assembly while providing peace of mind during demanding driving conditions.

Built to fit the 14-bolt 11.5-inch American Axle differential, this cover is compatible with a wide range of Dodge Ram trucks, including various trims such as Base, Laramie, SLT, Sport, ST, SXT, TRX, and TRX4. Whether you use your Ram for towing, hauling, or off-road adventures, the ATS Diesel Rear Differential Cover offers robust protection and improved fluid capacity.

Key Features:

This rear differential cover combines rugged construction with practical design features to deliver superior protection and performance:

• Heavy-duty steel construction for maximum impact resistance
• Increased fluid capacity to improve differential cooling and lubrication
• Precision CNC-machined mounting surfaces for a perfect fit and leak-free seal
• Integrated drain plug for easy fluid changes and maintenance
• Reinforced ribs and structural design to prevent warping under extreme conditions
• Corrosion-resistant powder coat finish for long-lasting durability
• Compatible with OEM and aftermarket differential components
• Designed specifically for 14-bolt 11.5-inch American Axle rear differentials
• Direct bolt-on installation with no modifications required

Construction & Design:

The ATS Diesel Rear Differential Cover is crafted from thick, high-grade steel to withstand harsh impacts and protect the internal gears and bearings of your rear differential. Its robust design includes reinforced ribs that add structural integrity, preventing flex and deformation even under heavy loads or off-road abuse. The cover’s precision-machined flange ensures a tight, leak-proof fit against the axle housing, while the corrosion-resistant powder coat finish guards against rust and environmental damage.

Additionally, the cover’s increased fluid capacity helps maintain optimal operating temperatures by allowing more gear oil volume, which enhances lubrication and reduces wear on internal components. The integrated drain plug simplifies routine maintenance, making fluid changes quicker and cleaner.

Installation & Fitment:

Installation of the ATS Diesel Rear Differential Cover is straightforward and designed to be a direct bolt-on replacement for the factory cover. No welding, cutting, or special modifications are necessary. The cover fits perfectly on Dodge Ram 2500 and 3500 trucks from 1999 to 2012, including various trims such as Base, Laramie, SLT, Sport, ST, SXT, TRX, and TRX4 models. It is also compatible with Ram models from 2011 to 2012.

For best results, it is recommended to replace the differential gasket or use a high-quality RTV sealant during installation to ensure a leak-free seal. The included drain plug allows for easy draining of old fluid before installation, streamlining the upgrade process.

What's Included:

• ATS Diesel Rear Differential Cover
• Drain plug installed
• Mounting hardware (if applicable)
• Installation instructions

Ideal For:

This rear differential cover is perfect for Dodge Ram owners who require enhanced protection and durability for their rear axle. It is especially suited for:

• Off-road enthusiasts who encounter rocks, mud, and rough terrain
• Work truck operators who haul heavy loads or tow frequently
• Performance builders seeking improved differential cooling and reliability
• Anyone looking to extend the life of their rear differential with a rugged upgrade

ATS Diesel Performance builds diesel upgrade solutions engineered for higher torque, towing confidence, and competition-level durability. Best known for performance-built transmissions, ATS also offers turbochargers, exhaust and fuel system components, and other supporting parts designed to handle heavy loads and elevated power on modern diesel trucks.