aFe Power Pro Series Rear Differential Cover

2003–2005 Dodge Ram 2500 / 3500

Part #: 46-70092

Overview

The aFe Power Pro Series Rear Differential Cover is a premium upgrade designed specifically for 2003 to 2005 Dodge Ram 2500 and 3500 trucks. This high-performance differential cover replaces the factory unit to provide superior protection and enhanced cooling for your rear differential. Built for truck owners who demand durability and reliability under heavy-duty conditions, it safeguards the internal components of your axle during towing, hauling, and off-road use.

By improving heat dissipation and increasing lubricant capacity, the Pro Series cover helps extend the life of your differential fluid and gears, ensuring optimal performance and longevity. Whether you rely on your Ram for work or recreation, this differential cover delivers peace of mind with rugged construction and practical features tailored to tough driving environments.

Key Features

Engineered for strength, durability, and efficient cooling, the aFe Power Pro Series Rear Differential Cover offers several advanced features that elevate it above standard covers:

• Constructed from durable die-cast A380 aluminum for excellent strength and corrosion resistance
• Reinforced ribs and wrinkle black powder-coated finish with machined fins for enhanced structural integrity and aggressive styling
• Increased lubricant capacity of approximately 5 quarts, improving fluid circulation and cooling compared to the factory 4-quart capacity
• Built-in internal and external fins that efficiently transfer heat from the differential fluid to the surrounding air, reducing operating temperatures
• Deep reach magnetic drain and fill plugs that capture metal particles and contaminants, protecting internal components from wear
• Large pre-installed oil level sight glass calibrated to factory fluid levels to prevent overfilling and simplify maintenance checks
• Includes an O-ring for a leak-free seal and all necessary mounting hardware for straightforward installation
• Compatible with Ford 12-10.25 and 10.50 axles, specifically fitting AA14-10.5 axle configurations

Construction & Design

The Pro Series differential cover is crafted from premium die-cast A380 aluminum, known for its superior strength-to-weight ratio and excellent corrosion resistance. Its design features reinforced ribs that add rigidity and durability, ensuring the cover withstands harsh road and off-road conditions without deforming or cracking.

The wrinkle black powder-coated finish provides a tough protective layer against environmental damage while delivering a sleek, aggressive look that complements the rugged appearance of your Dodge Ram. Machined fins on the exterior enhance heat dissipation, while internal fins promote fluid movement, working together to maintain optimal operating temperatures for your differential.

Installation & Fitment

Installation of the aFe Power Pro Series Rear Differential Cover is straightforward and designed as a direct bolt-on replacement for the factory cover on 2003–2005 Dodge Ram 2500 and 3500 models. The package includes all necessary hardware and an O-ring to ensure a secure, leak-free fit. No modifications to the axle or vehicle are required, making this an ideal upgrade for owners seeking enhanced protection and performance without complicated installation procedures.

What's Included

• Pro Series Rear Differential Cover with machined finish
• O-ring seal for leak prevention
• Deep reach magnetic drain plug
• Magnetic fill plug
• Large oil level sight glass pre-installed
• Complete mounting hardware kit

Ideal For

This differential cover is perfect for Dodge Ram 2500 and 3500 owners who frequently tow heavy loads, drive off-road, or operate their trucks in demanding conditions where enhanced axle protection and cooling are critical. It is also well-suited for enthusiasts looking to upgrade their vehicle’s durability and maintenance convenience with a high-quality, performance-oriented component.

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.