aFe Pro Series Rear Differential Cover

Fits Most Dodge/Ram (94-22)

Part #: 46-70272

Overview

The aFe Pro Series Rear Differential Cover is a premium aftermarket upgrade engineered specifically for Dodge Ram 1500 and 2500 models from 1994 to 2010, as well as Ram 3500 models from 1994 to 2002. Designed to replace the factory stamped steel cover, this high-performance differential cover enhances the durability and cooling efficiency of your truck’s rear differential. By increasing fluid capacity and improving heat dissipation, it helps maintain optimal operating temperatures even under heavy towing, hauling, or off-road conditions.

Ideal for Ram owners who demand extended drivetrain life and easier maintenance, the aFe Pro Series cover features user-friendly additions such as a magnetic drain plug and a temperature sensor port. Whether you rely on your Ram for work or recreation, this cover provides robust protection and improved thermal management to keep your differential running smoothly and reliably.

Key Features

This differential cover incorporates advanced design elements to maximize durability, cooling, and convenience:

• Machined external cooling fins that efficiently dissipate heat to the surrounding air
• Magnetic drain plug that captures metal particles and simplifies 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 impact resistance
• Increased fluid capacity by 3 to 4 quarts without requiring dipstick modifications
• Durable wrinkle black powder coated finish for corrosion resistance and a professional appearance
• Oil level sight glass for quick and accurate fluid level checks
• Calibration and fill plugs equipped with magnets to trap debris and contaminants
• 50-state legal with a 2-year limited warranty for peace of mind

Construction & Design

The aFe Pro Series Rear Differential Cover is crafted from rugged die-cast A380 aluminum, chosen for its excellent strength-to-weight ratio and superior thermal conductivity. The cooling fins are precision-machined directly into the cover, maximizing heat transfer away from the differential fluid. Reinforced ribs are cast into the design to provide additional rigidity and protect against warping or damage from road debris and impacts.

The wrinkle black powder coat finish not only guards against corrosion but also enhances the visual appeal of your truck’s undercarriage with a sleek, professional look. Every detail, from the magnetic drain plug to the temperature sensor port, is engineered for both performance and convenience, making this cover a smart and durable upgrade for serious Dodge Ram enthusiasts.

Installation & Fitment

Installation of the aFe Pro Series Rear Differential Cover is straightforward and designed to be a direct replacement for the factory stamped steel cover on Dodge Ram 1500 and 2500 models from 1994 through 2010, as well as Ram 3500 models from 1994 through 2002. No modifications to the vehicle or dipstick are required. The kit includes all necessary hardware for installation; however, the pan gasket, spin-on filter, and pickup screen must be purchased separately.

The magnetic drain plug simplifies fluid changes by allowing easy draining without removing multiple screws or tilting the cover, making routine maintenance faster and cleaner.

What's Included

• Pro Series Rear Differential Cover with machined cooling fins
• Magnetic drain plug
• Temperature sensor port plug
• Calibration plug
• Fill plug with magnet
• Installation hardware

Ideal For

This differential cover is ideal for Dodge Ram owners who require enhanced durability and improved cooling performance from their drivetrain components. It is especially suited for trucks used in towing, heavy hauling, off-road driving, or any application where extended differential life and simplified maintenance are priorities. Enthusiasts looking to upgrade their Ram’s rear differential with a high-quality, functional, and stylish component will appreciate the benefits offered by the aFe Pro Series Rear Differential Cover.

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.