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. Ideal for top-end...

Twin Power™ Premium Engine Oil is specially formulated to protect American V-Twin motorcycle engines operating under extreme conditions. Possessing a special additive package that extends engine life...

Twin Power primary chain adjuster plate kits refresh the primary tensioning system with accurately stamped components, improving stability and extending service life on older Big Twin models. ...

The Twin Power™ Primary Chain Adjuster Plate Kit is an O.E.M. quality replacement. The kits refresh the primary tensioning system with accurately stamped components, improving stability and extending...

Twin Power™ coils are high-quality direct fit with at least 20% more voltage than stock. Our 12-Volt high performance coil features special heat-resistant construction. These high voltage replacement...

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...