Engine
Active filters
Coloured 90° tyre valves that replace original valves for easier pressure checks and added style.
Custom-colored clamps for braided copper, stainless steel, and rubber oil lines; fits most manufacturers' braided rubber hoses.
Transparent cam cover that matches Assault series air cleaners and allows internal inspection. Made in the USA.
Transparent cover for viewing internal engine components. Matches the Assault series air cleaners. Made in the USA.
Transparent cover for viewing internal engine components; matches Assault series air cleaners. Made in the USA.
Complete replacement set includes top and second compression rings plus three-piece oil control rings; restores sealing and oil control for two pistons.
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 ring set for two pistons with PVD coating and three-piece oil control rings.
Complete replacement set with top, second, and three-piece oil control rings; PVD coating on top rings; includes rings for two pistons.
Complete replacement set with PVD-coated barrel face top rings, Napier second rings, and three-piece oil control for improved sealing and oil economy.
Plug and plug kits for various Harley‑Davidson oil systems; includes washers or O‑rings as required. Made in the U.S.A.