Best Heavy Duty Car Differential Covers of 2025

PPE Heavy Duty Rear Aluminum Differential Cover provides optimum heat dissipation and outstanding fluid cooling capabilities. It is made in the USA from high-quality cast aluminum and includes internal and external cooling fins, a neodymium magnet equipped fill and drain plugs, and a natural finish that increases heat transfer. It also holds an extra quart-and-a-half of fluid, offering a bit of added thermal stamina to the rear-end gears on those long hauls. To keep the fluid clean, PPE includes a high-powered Neodymium-magnet-equipped fill plug to pull metal particles right out of the oil before they have a chance to attack the gears and bearings. The cover is available for 2001 and newer GM 2500/3500 trucks with 14 bolt - 11.5” rear axle and 2003-2013 Dodge 2500/3500 trucks with 14 bolt - 11.5” rear axle.

The Solid 8.8 Heavy Duty Differential Cover is a car part that adds rigidity to weak factory housings with its thick nodular iron casting and reinforcing ribs. It also has a large diameter fill plug that makes fluid replacement easy, and a fully machined seal surface. This product comes with a lifetime warranty.

The PPE Differential Cover is designed with high-grade A356.0-T6 aluminum alloy, ensuring effective heat management for your vehicle. It features external cooling fins and internal heat sinks that work together to dissipate heat, preventing overheating during heavy use. You’ll appreciate the convenient 1/8 inch NPT temperature access ports, allowing for easy monitoring of your differential temperature. Additionally, the drain plug is equipped with a neodymium magnet that attracts and collects metal contaminants, helping to extend the life of your differential. This cover combines durability and functionality for enhanced performance.

The Solid Dana 44 Heavy Duty Differential Cover is a car differential cover that adds rigidity to weak factory housings, features a thick nodular iron casting with reinforcing ribs, has a heavy duty powder coated cover, and comes with a large diameter fill plug for easy fluid replacement. This cover is useful for those who want to protect their vehicle's differential, improve its performance, and make fluid replacement easier.

This heavy-duty differential cover is made of 3/8 inch cast steel and comes painted black inside and out. It provides reinforced protection for the fill plug, ensuring that it won't get damaged during off-road use. The cover comes with all necessary hardware, making installation a breeze. As a car differential cover, this product provides added protection for the differential, ensuring that it stays in good condition for longer periods of time.

The Solid Dana 30 Heavy Duty Differential Cover is designed to replace weak factory stamped steel covers and add rigidity to weak factory housings. It is made of thick nodular iron casting with reinforcing rib and features a large diameter fill plug for easy fluid replacement. Plus, it comes with a lifetime warranty.

This car differential cover features a thick nodular iron casting with reinforcing ribs that adds rigidity to weak factory housings, and dense material that quiets down noisy lockers. Additionally, it comes with a heavy-duty powder-coated cover and a lifetime warranty.

The PPE Differential Cover is expertly crafted in the USA from high-quality A356.0-T6 cast aluminum, ensuring durability and resistance to wear over time. Its innovative internal and external cooling fins help regulate temperature, promoting optimal performance during heavy use. You’ll appreciate the neodymium magnet equipped fill plug, which effectively captures metal debris, extending the life of your differential. Plus, with a limited lifetime warranty, you can enjoy peace of mind knowing your investment is protected.

The Oliver's Custom Drive Shaft Dana 35 Heavy Duty Differential Cover is a high-quality aftermarket upgrade for your car's differential. Made from thick nodular iron casting with reinforcing rib, this heavy-duty cover replaces the weak factory stamped steel covers, adding rigidity to weak factory housings. With a lifetime warranty, you can be assured of its durability and longevity. The large diameter fill plug makes fluid replacement a breeze, saving you time and effort. By upgrading to this differential cover, you not only enhance the strength and performance of your differential, but also enjoy the convenience of easy fluid replacement, ensuring smooth operation and extending the lifespan of your differential.

The PPE Differential Cover is a high-quality component designed for your vehicle’s differential system. Crafted from durable A356.0-T6 cast aluminum, it ensures long-lasting performance and strength. The cover features internal and external cooling fins, which help dissipate heat, enhancing your vehicle's efficiency and longevity. Additionally, it comes with a fill plug that includes a neodymium magnet, helping to capture metal debris and keep your differential clean. Made in the USA, this cover also offers peace of mind with a limited lifetime warranty, ensuring you can rely on its quality for years to come.