aFe Pro Series Front Differential Cover Kit: Dodge Ram 2500 / Ram 3500 2003 - 2010 w/ Machined Fins and Gear Oil

aFe Pro Series Front Differential Cover Kit

2003–2010 Dodge Ram 2500 / Dodge Ram 3500

46-70042-WL

Overview:

The aFe Pro Series Front Differential Cover Kit is a premium upgrade designed specifically for 2003 to 2010 Dodge Ram 2500 and Ram 3500 trucks. Crafted to enhance the durability and performance of your vehicle’s front differential, this kit features a finned aluminum cover that improves fluid cooling and increases fluid capacity. Ideal for enthusiasts and professionals seeking to extend the life of their differential while simplifying maintenance, this cover combines robust construction with functional design to keep your drivetrain running cooler and more efficiently under demanding conditions.

By replacing the stock stamped steel cover with this high-quality aluminum alternative, you gain superior heat dissipation, added fluid volume, and convenient service features that help protect your investment and improve overall reliability.

Key Features:

This Pro Series Differential Cover Kit offers a range of advanced features engineered to optimize performance and ease of use:

• Machined cooling fins on both internal and external surfaces to maximize heat transfer and reduce operating temperatures
• Increased fluid capacity by 3 to 4 quarts without requiring dipstick modifications
• Magnetic drain plug to capture metal particles and simplify fluid changes
• 1/8" NPT temperature sensor port for real-time monitoring of differential fluid temperature
• Reinforced ribs integrated into the casting for enhanced structural strength and durability
• Durable wrinkle black powder coated finish for corrosion resistance and a sleek appearance
• Calibration and fill plugs designed for easy fluid management
• Oil level sight glass for quick visual fluid checks
• 50-state legal compliance ensuring broad compatibility with emissions regulations
• 2-year limited warranty for peace of mind

Construction & Design:

The differential cover is precision die-cast from rugged A380 aluminum alloy, chosen for its excellent strength-to-weight ratio and thermal conductivity. The cooling fins are cast directly into the cover, providing a large surface area to dissipate heat efficiently. Reinforced ribs add rigidity to withstand harsh off-road and heavy-duty conditions, preventing warping or damage over time. The wrinkle black powder coat finish not only protects against corrosion but also delivers a professional, aggressive look that complements the rugged styling of Dodge Ram trucks.

Installation & Fitment:

Designed as a direct bolt-on replacement for the front differential cover on 2003–2010 Dodge Ram 2500 and Ram 3500 models, installation is straightforward with no modifications required. The increased fluid capacity does not necessitate changes to the existing dipstick, making the upgrade hassle-free. The included magnetic drain plug simplifies fluid changes, eliminating the need to remove the entire cover or tilt it to drain. Note that the kit does not include the pan gasket, spin-on filter, or pickup screen, which should be sourced separately to complete the installation.

What's Included:

• Finned aluminum front differential cover with integrated cooling fins and reinforced ribs
• Magnetic drain plug
• Temperature sensor port plug (1/8" NPT)
• Calibration plug
• Fill plug with magnet at the end of the extended dipstick
• Oil level sight glass

Ideal For:

This differential cover kit is perfect for Dodge Ram 2500 and 3500 owners who demand enhanced durability and cooling performance from their drivetrain components. It is especially beneficial for those who tow heavy loads, frequently drive off-road, or operate in hot climates where differential temperatures can rise significantly. Mechanics and DIY enthusiasts will appreciate the ease of maintenance provided by the magnetic drain plug and temperature sensor port, making fluid changes and monitoring more convenient.