High-lift valve springs providing correct spring force for performance cams in 74" and 80" motors. Max lift; requires proper valvetrain setup. Made in the United States.
Active filters
Precision-machined valve guide compatible with no-lead fuel and multiple valve-stem materials. Made in the USA.
Precision-machined valve guides compatible with no-lead fuel. Made in the USA.
OEM replacement dowels for HD® Evolution engines that ensure precise cylinder alignment and reliable fitment.
High-quality neck post bearing for reliable steering and long-lasting performance.
Chrome-plated heavy-duty mounts, 30% thicker than stock; include chrome choke/horn brackets and socket-head hardware for select PART #s.
Secure support bracket kit for air cleaner; includes all gaskets and mounting hardware. Breather kits sold separately.
Durable piston pin clips for a wide range of Harley models. Meets or exceeds OEM specs. Made in the USA.
Cast-iron construction meets or exceeds OEM tolerances; resists higher pressure and heat than stock.
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.
- Complete set: top, second, and oil control rings.
- Top rings barrel face; second rings reverse torsional taper.
- Three-piece oil rings with rails and expanders for positive oil control.
- Includes enough rings for two pistons; read piston instructions for end gap.
Complete replacement set with top, second, and three-piece oil control rings; includes enough rings for two pistons.