Engine

Active filters
Includes top and second compression rings plus three-piece oil control rings; supplies enough rings for two pistons for reliable sealing and oil control.
Complete replacement ring set with top and second compression rings plus three-piece oil control rings. Restores compression, controls oil, and improves oil economy. Includes enough rings for two pistons. Made in the USA.
Complete set of top, second, and three-piece oil control rings for two pistons. Barrel face top rings and Napier second rings provide improved sealing and heat transfer; three-piece Flex Vent oil rings ensure positive oil control. Made in the USA.
Complete replacement piston ring set with PVD coating: barrel face top rings, Napier second rings, and three‑piece flex vent oil control rings. Includes enough rings for two pistons.
Designed for twin plug heads. Accepts .650"/10mm x 1.0 compression release valves. Sold each.
Made in the USA replacement gasket set that restores proper sealing and reduces leaks. Easy to install with standard tools.
- Indexes spark plug electrode gap toward intake valve
- Includes five 0.40" thick, five 0.50" thick, and five 0.60" thick washers
- Made in the USA
Reliable replacement sealing component that prevents oil and coolant leaks and is designed for straightforward installation.
Reliable engine gasket that restores a leak-free seal and supports routine maintenance.
Durable 5th Gear sealing set, made in the U.S.A., ideal for routine maintenance and leak prevention.