Billet Aluminum Differential Cover

Constructed from high-strength billet aluminum, it's built to withstand impacts, debris, and demanding conditions from towing and hauling to off-road adventures. This cover features an innovative external heat sink design to increase surface area for better heat dissipation, helping to reduce differential oil temperatures during strenuous use. Internally, a diversion groove design promotes optimal fluid flow for improved lubrication. The use of aluminum alloy offers superior cooling over traditional iron materials, with billet construction providing enhanced durability for long-lasting performance. An external observation mirror with a floating ball allows for easy monitoring of the oil level, even if the mirror surface degrades over time. This differential cover is specifically designed for AAM 11.5" and 12" 14-bolt rear axles. It is compatible with 2020–2025 GM Heavy Duty Trucks (Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD) and 2019–2024 RAM Heavy Duty Trucks (RAM 2500/3500). It is crucial to verify your vehicle is equipped with the AAM 11.5" or 12" 14-bolt rear axle, as this cover is NOT compatible with AAM 10.5", Dana, Ford 10.25/10.5/8.8, or GM 9.5" or 10-bolt axles. Please confirm your axle type by checking the axle tag, build sheet, or counting the differential cover bolts before purchasing.