Smeding Diesel Differential Cover (20-24 6.6L Duramax Sierra 2500 HD)Find parts that fit my vehicle

This rear differential cover has been meticulously engineered to minimize friction and maximize lubrication of your gear set. If you want to keep your differential gears running cool and clean, look no further. Our cover is made from high-quality cast aluminum for optimized strength and heat dissipation.

An increased fluid capacity provides a higher thermal stamina. This new cover is outfitted with internal heat sinks and external cooling fins that increase the cover's surface area aid in dissipating heat. By doing this, we help keep your differential oil running cooler which will help keep its viscosity which in turn helps extend differential fluid life and increase time in between services.

We have also provided a fill plug equipped with a high power magnet which will aid in keeping fluid cleaner. 

Smeding Diesel Rear Diff Cover Features:

• Increases oil capacity by 1.4 quarts
• Compatible with the 11.5" and 12" rear axle
• Designed with meticulously engineered internal fins to minimize friction and maximize lubrication, while also adding strength and rigidity
• Durable heat-treated cast aluminum for maximum heat dissipation for reducing fluid temperatures
  
• Heavy duty High Quality Cast Aluminum adds additional strength to the gear housing
  
• 1/8-inch stainless steel NPT port for optional temperature probe
  

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov