TwinPower

Twin Power™ lower rocker box gaskets provide reliable sealing between the rocker box and head on Twin Cam and Evolution Big Twin engines, helping reduce top-end oil leaks.

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.

Includes lower covers, inner tubes, springs, spring washers, spring covers and spring caps spring covers and spring caps

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...

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...

Eliminates lean spitting and improves performance with custom exhausts, air filters, or high-compression setups

Prevent idle mixture screw leaks with this Twin Power™ repacking kit. The Twin Power™ Fuel Mixture Repacking Kit allows you to maintain your carburetor for peak performance. This kit includes spring,...

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.