HP+ Tappets. Fits Big Twin 1985-1999 & Sportster 1986-1990.

Features & Benefits:-

* Performance hydraulic roller lifters

* Optimized oil flow to top end – valves, springs, rockers, shafts & valve guides

* Cooler oil and reduced wear

* Extends life of top end valve gear

* CNC machined and precision ground

* Drop in replacement for stock lifters

* Dyno developed and track tested

* Recommended for use with the Feuling Oil Pump or comparable high volume oil pump

* Replaces OEM # 18523-86 & 18568-98

Tech Tips:-

* Use an oil can to Pump the lifter full of oil prior to Assembly.

Made in the U.S.A.