Twin Power™ rocker box gasket kits include the critical gaskets needed to reseal rocker boxes on popular Big Twin and Sportster engines, helping control top-end oil leaks.

These Twin Power™ tappet guide gaskets seal the tappet blocks to the crankcase on 1999-2017 Twin Cam engines, helping control oil leaks during valvetrain or cam service.

Twin Power™ Bendix Accelerator Pump directly replaces H-D 27762-71A for vintage Harley Big Twin carburetors, restoring crisp throttle response.

Twin Power™ coils are the high-quality direct fit with at least 20% more voltage than stock. Constructed from durable high-quality, molded-epoxy, in a late O.E.M.-style molded case, these ignition...

Custom handlebar control switch features 3-way head lamp dimmer with integral horn button. It fits XL, Big Twin handlebars.

Reliable switch action ensures consistent brake light activation for safety and visibility

Twin Power™ O-ring and seal kits provide precision OEM replacements for Harley-Davidson engines, transmissions, and primaries, ensuring leak-free performance in convenient multi-packs.

Twin Power™ O-ring and seal kits provide precision OEM replacements for Harley-Davidson engines, transmissions, and primaries, ensuring leak-free performance in convenient multi-packs.This Part...

Chrome Evo oil filter with service nut replaces H-D 63796-77A, 63805-80A, 63806-83 for easy changes

Twin Power™ Extended Compensator Nut +1/2 inch is an extended crankshaft compensator nut designed for wide-tire and custom offset applications, helping retain compensating sprocket assemblies...