aFe Power Pro Series Rear Differential Cover, Black w/ Machined Fins - Select 2020-2023 Chevrolet/GMC 2500 HD/3500 HD (AAM 11.5/12.0)

Fits select 2020-2023 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD equipped with AAM 11.5 or 12.0 rear axles.

Engineered for the heavy-duty demands of towing and hauling, the aFe Power Pro Series rear differential cover (MPN 46-71260B) provides superior cooling and protection for your drivetrain. This high-capacity cover increases oil volume over the stock unit for improved thermal stability. Integrated internal and external fins maximize heat dissipation, transferring thermal energy from the gear oil to the ambient air. For maintenance ease and long-term reliability, the cover features a large oil level sight glass for instant inspections and a calibration plug set to the factory oil level to prevent overfilling.

• Fits AAM 11.5/12.0 rear axles
• Constructed from durable cast aluminum with a black powder coat finish and machined fins
• Dual Neodymium magnetic plugs capture loose metallic particles to protect gears
• Includes a deep-reach magnetic fill plug and magnetic drain plug
• Internal and external fins for maximum cooling efficiency
• Built-in oil level sight glass and calibration plug
• Manufacturer Part Number: 46-71260B