Internal Parts

Active filters
Powerglide™ Steady Roll tappets with a Steady Roll bronze bushing, billet steel body and enhanced lubrication for longer service life.
Mounts S&S E/G or Keihin CV style air cleaners to Mikuni HSR 42/45 carburetors. Made in the USA.
Durable rocker arm shaft for precise valve-train operation. Made in the U.S.A.
Precision-machined motor sprocket shaft for reliable power transfer. Made in the U.S.A.
Precision pinion gear shaft engineered for smooth gearbox operation. Made in the U.S.A.
Precision-machined Powerglide™ hydraulic tappets, hand-fit for exact cam timing and extended roller life.
Precision billet-machined tappets, hand-fitted for exact cam timing and improved roller life.
Precision roller assembly with larger outer rollers, smaller pin bearings for higher rpm, and an enlarged axle that eliminates internal movement. Made in the U.S.A.
High-precision hydraulic tappets with micro-finish bore and oversized axle for improved cam tracking.
- Fits cast iron and aluminum valve-lifter blocks
- Billet bearing metal construction
- Hand fit hydraulic unit, .0002" running fit
- Recommended block clearance .0007"–.0012"
Replacement component for Big Twin models; precision-machined to restore lubrication performance and reduce noise.