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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.
Performs like hydraulic to 5,500 rpm then becomes solid, adding ~3–6 hp and preventing hydraulic pump-up. Made in the U.S.A.; requires adjustable pushrods.
- Fits cast iron and aluminum valve-lifter blocks
- Billet bearing metal construction
- Hand fit hydraulic unit, .0002" running fit
- Recommended block clearance .0007"–.0012"
Reduce starting compression with easy-install manual release valves. Drill and tap each cylinder head 10 mm x 1.0 mm. Fits all Big Twin models.
Replacement component for Big Twin models; precision-machined to restore lubrication performance and reduce noise.
High-strength pinion shaft nut designed for secure gear-side installation and long service life.
Precision-made valve lock keys with a 10° lock angle. Heat-treated and made in the U.S.A. Designed for reliable valve keeper service.
Complete set of top, second, and oil control rings to restore sealing and oil control; includes rings for two pistons.
Complete replacement piston ring set including top, second, and oil control rings to restore compression and manage oil control. Includes enough rings for two pistons.
Includes top and second compression rings plus three-piece oil control rings. Enough rings for two pistons; two rings per groove except rails. Made in the USA.
Includes top and second compression rings plus three-piece oil control rings; made in the USA; enough rings for two pistons.
Complete replacement piston ring set for two pistons, including barrel face top rings, Napier second rings, and three-piece oil control rings.