Oil System Optimizer Master Kit, 1966-91 AMC, Jeep V-8P N: OSOMK Replace your worn, failing, or non functioning oil pump components Add peace of mind with exceptional mechanical insurance for your engine Restores and improves oil pump pressure, function, and increases the oil supply to the back connecting rods, main bearings, and cam lifters by 50% plus Kit Includes: (1) P N MOKV8 oil line modification kit (1) P N 51089 oil pump rebuild kit (1) P N MPKV8 oil pump mid plate kit Country of Origin: USA