Rear Differential Cover AA14-11.5 Dodge Cummins 2003-2018 / Chevy Duramax 2001-2018

• Engineered cover design keeps oil on the gears
• Deflects oil back onto the ring gear and into the pinion gear for cooler longer life
• Extra capacity sump located at bottom for gears to pick up oil
• Internal and external cooling fins
• Stainless steel allen head cap bolts, fill plug
• Magnetic drain plug
• Gasketless cover has integral re-usable Viton O-Ring
• Dodge (2003-up) with AA14-11.5 differential
• Chevy (2001-up) with AA14-11.5 differential

BD's design deflects the oil back onto the ring gear and into the pinion gear for cooler longer life. Other differential covers are large and bulky resulting in lubricating oil being flung off the ring gear causing addition heat and/or wear.