Engine

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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.
State-of-the-art compression release valves that reduce hot starts and lower starter and battery loads. Sold as a set and made in the U.S.A.
State-of-the-art design to reduce hot starts and starter/battery loads. Custom molded knobs, sold in pairs, made in the U.S.A.
Plug and plug kits for various Harley‑Davidson oil systems; includes washers or O‑rings as required. Made in the U.S.A.
Heat-treated, plated adjuster bolts with included chrome lock nuts. Made in the USA.
Durable button-head Allen drain screws with copper compression washers for fork sliders.
Stem bolt with washer; complete hardware kit, made in the U.S.A.