Wehrli 01-19 Chevrolet Duramax/03-19 Dodge Cummins 11.5in AAM Rear Diff. Cover - CAT Yellow

This fabricated aluminum differential cover from Wehrli is built for the 11.5-inch AAM rear axle found in many Chevrolet Duramax and Dodge Cummins trucks. The aluminum construction helps dissipate heat better than a stock cast iron cover, and it’s finished in a durable CAT Yellow powder coat that stands out. It’s a well-built upgrade that fits a range of popular heavy-duty trucks, including 2001-2019 Chevrolet Silverado 2500 HD and 2003-2018 Dodge Ram 2500 and 3500 models.

Wehrli uses a custom single-stage powder coating process for a strong finish that resists corrosion and chipping. This cover includes a drain plug, making fluid changes much easier than with a factory cover. It also comes with stainless hardware for installation, ensuring good corrosion resistance where it counts. This is a solid option if you’re looking to improve the look and function of your rear differential.