If you keep breaking or cracking your factory Duramax rear engine cover than look no further because we have a solution for you. Often times, on high horsepower applications, the factory cast rear engine cover will crack or break due to the tremendous amounts of stress that this unit has to handle. We have developed a billet aluminum unit that is completely CNC machined out of a solid block of aluminum. This unit is a direct factory replacement unit and requires no additional modification in order to install.
LB7 LLY LBZ LMM
Accepts Factory Gaskets and Seals
Retains Factory Style Turbo Oil Drain
Through Cover Coolant Passages Intact
Eliminates Failure Prone Rear Cover Coolant Block Off Plate