BD Diesel 1061825 Rear Diff Cover AA14-11.5 for 03-18 Cummins 01-18 Duramax

BD Rear Differential Cover AA14-11.5 Dodge 2003-2018 / Chevy 2001-2018 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. 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