aFe Power Pro Series Front Differential Cover

Fits Most Dodge/Ram 6.7L Diesel/5.9L Diesel/5.7L (03-13)

Part #: 46-70042

Overview

The aFe Power Pro Series Front Differential Cover is a precision-engineered upgrade designed specifically for Dodge Ram 2500 and 3500 models from 2003 to 2010 equipped with AA14-9.25 axles. This machined aluminum cover enhances the durability and cooling efficiency of your truck’s front differential, providing superior protection against impacts and wear. Ideal for truck owners who demand reliability during heavy towing, off-road driving, or daily use, the Pro Series cover increases lubricant capacity and simplifies maintenance to extend the life of your drivetrain.

By reinforcing a critical component prone to damage, this differential cover delivers peace of mind and improved performance under demanding conditions. Whether navigating rough terrain or hauling heavy loads, the aFe Power Pro Series cover safeguards your investment and helps maintain optimal differential operation.

Key Features

Engineered to maximize protection and functionality, the aFe Power Pro Series Front Differential Cover offers the following benefits:

• Constructed from durable die-cast A380 aluminum with reinforced ribs for exceptional strength and impact resistance
• Increased lubricant capacity of approximately 3-1/2 quarts versus the factory cover’s 2-1/2 quarts, enhancing fluid cooling and lubrication
• Built-in external cooling fins efficiently dissipate heat to maintain optimal operating temperatures
• Pre-installed large oil level sight glass calibrated to factory fluid level for easy fluid checks and to prevent overfilling
• Deep reach magnetic dipstick and magnetic drain/fill plugs capture metal particles, protecting internal gears from wear
• Precision-machined finish ensures a perfect fit and adds a professional appearance
• Designed specifically to fit AA14-9.25 axles used in 2003–2010 Dodge Ram 2500 and 3500 models

Construction & Design

The Pro Series differential cover is crafted from premium die-cast A380 aluminum, known for its excellent strength-to-weight ratio and corrosion resistance. Reinforced ribs integrated into the design enhance structural rigidity, protecting the differential housing from impacts and deformation during off-road or heavy-duty use. The machined finish not only guarantees a precise fit but also provides a sleek, durable appearance beneath your truck.

Strategically placed external cooling fins increase surface area to promote efficient heat transfer from the gear oil to the surrounding air. This cooling effect helps maintain fluid viscosity, reduces thermal stress on internal components, and ultimately prolongs the life of your front differential.

Installation & Fitment

Installation of the aFe Power Pro Series Front Differential Cover is straightforward and designed as a direct bolt-on replacement for the factory cover on 2003–2010 Dodge Ram 2500 and 3500 models with AA14-9.25 axles. No modifications are required. For proper sealing and leak prevention, the use of the specified Dodge gasket (P/N: 5086682AA) is necessary but not included.

The included magnetic drain and fill plugs simplify fluid changes and maintenance, making it easier to keep your differential in optimal condition without hassle.

What's Included

• Pro Series front differential cover (machined A380 aluminum)
• Pre-installed oil level sight glass calibrated to factory fluid level
• Magnetic drain plug
• Magnetic deep reach fill dipstick

Ideal For

This differential cover is perfect for Dodge Ram 2500 and 3500 owners seeking enhanced durability and improved cooling efficiency for their front differential. It is especially suited for those who frequently tow heavy loads, drive off-road, or operate their trucks in demanding environments where extra protection and increased fluid capacity are critical. The aFe Power Pro Series cover helps maintain drivetrain reliability and reduces the risk of costly repairs caused by overheating or contamination.

aFe POWER (Advanced FLOW Engineering) offers dyno-proven intake, filtration, and exhaust upgrades aimed at measurable performance gains. The brand’s lineup is geared toward enthusiasts looking for better airflow, improved sound, and durable materials—from cold air intakes to stainless exhaust systems for street and track applications.