Twin Power™ transmission side cover gaskets seal the side cover to the transmission case on various Big Twin models, helping prevent gear lube leaks during service. Direct fit replacements for OEM...

Twin Power™ transmission trap door gaskets seal the transmission end cover to the case on 6-speed Big Twin models, helping prevent leaks during transmission service. Help keep gear lube contained...

Twin Power™ Compensator Sprocket and Cover Kits deliver complete high-quality OEM solutions for Touring, Softail, and Big Twin models, including sprockets and covers for easy installation and...

A great replacement for the stock Twin Cam oil pump from Twin Power. Die-cast aluminum body, high-strength steel gear, this oil pump features a larger rotor for up to 20% more oil pressure, 66% more...

This Twin Power™ transmission-to-engine gasket helps seal the interface between the transmission and engine on 2007-up Big Twin and 2006 Dyna models, reducing oil leaks in this area. Suitable for...

These high-quality replacement primary chains from Twin Power™ are superior to the O.E.M. parts. Our premium quality endless chains offer you precision-ground side plates for smoother operation...

These high-quality replacement primary chains from Twin Power™ are superior to the O.E.M. parts. Our premium quality endless chains offer you precision-ground side plates for smoother operation...

Top End Kits include all necessary gaskets needed when performing a top end repair or replacment. Ideal for top-end rebuilds, performance upgrades, or routine refreshes across multiple Harley...