The factory oil control valve on all oil cooled M8 engines regulates the amount of oil flowing to the oil cooler/heads. The stock assembly includes a check ball retainer that is formed steel. Over...
20 percent flow increase on supply side and 52 percent flow increase on scavenge.This Part Fits:YearMakeModelSubmodel2018-2021Harley-DavidsonFLFBS Fat Boy 114Base2018-202
44 percent flow increase on supply side and 58 percent flow increase on scavenge.This Part Fits:YearMakeModelSubmodel2017-2021Harley-DavidsonFLHR Road KingBase2017-2019</
The S&S Cycle Precision Tappets are a high-performance replacement for both the standard and premium lifters for M8, Twin Cams and late Sportster® applications. Each Precision Tappet is hand...
Includes: Springs, Top Collars, Keepers, Bottom Collar/SealsThis Part Fits:YearMakeModelSubmodel2017-2021Harley-DavidsonFLHR Road KingBase2017-2019Harley-Davidso
The 540C cam was designed to add even more stump pulling torque to your big bore M8, for those that keep the revs below 6000 rpm.This Part Fits:YearMakeModelSubmodel2018-2021Harley-DavidsonFLFBS Fa