PPE 2020-2025 GM 6.6L Duramax 11.5 Inch /12 Inch -14 Heavy-Duty Cast Aluminum Rear Differential Cover Raw

PPE Heavy-Duty Cast Aluminum Rear Differential Cover

Upgrade your GM rear differential with this high-performance cover from PPE, engineered to improve cooling, lubrication, and durability. Constructed from high-quality A356.0-T6 cast aluminum, this cover is designed to handle demanding conditions while helping extend the life of your differential.

Key Features

• Constructed from A356.0-T6 cast aluminum for superior strength
• Increased fluid capacity for improved thermal stability
• Internal heat sinks and external cooling fins for enhanced heat dissipation
• Helps maintain optimal oil viscosity under load
• Raw aluminum finish
• Includes magnetic fill plug with high-power Neodymium magnet

Benefits

This upgraded differential cover helps keep fluid temperatures lower, improving lubrication and reducing wear on internal components. The added fluid capacity and advanced cooling design increase thermal efficiency, while the magnetic fill plug captures harmful metal particles to keep your gear oil cleaner and extend service intervals. Designed with both internal and external cooling enhancements, this cover increases surface area to dissipate heat more efficiently. By keeping differential temperatures in check, it helps preserve oil performance and extend the life of your drivetrain components.

Fitment

Fits the following GM applications:

• 2020–2025 Chevrolet/GMC 2500HD/3500HD with 6.6L Duramax
• 11.5-inch and 12-inch (14-bolt) rear differentials

GM OEM Reference: 84757353

What's Included

• PPE heavy-duty cast aluminum differential cover
• Magnetic fill plug