Fitment:1992-'99 HD® Big Twin Features & Benefits: Standard Billet Cover. No thicker than a stock pump. Gears with fewer, but larger teeth provide increased oil volume for both supply and return sides of the pump. Supply gears are 9% wider than stock and standard S&S® oil pumps 28% wider than stock return gears ensure proper crankcase scavenging, reduce drag on the flywheels, and eliminate oil carryover. Increased scavenging capacity results in: Less oil in the crankcase. Less oil carryover. Equipped with a stock length oil pump drive shaft. Includes:Complete oil pump assembly, Oil pump driveshaft, Miscellaneous hose fittings and plugs, Paper gaskets, and Mounting hardware.