Primary

Made by Epco Zero Leak, American Manufacturer, these drain plugs are designed to seal better at lower torque values than others. Our drain plug...

  With four sealing surfaces, you'll get twice the sealing protection as standard O-rings. Also known as Quattro Seals and X-rings,...

All 05 and Up Big Dog Motorcyclea using a rubber style gasket for sealing the outer primry cover. Proudly made in the U.S.A. Go HERE for Primary...

Upgraded inspection cover for Big Dog models from 2005-2010. This is an upgraded machined billet chrome inspection cover. Unlike the OEM, which...

For 05 and Up Big Dogs with the Inspection Cover Style shown below. The square cross section retains a seal longer than standard O-rings and allows...

For 05 and Up Big Dogs with the Inspection Cover Style requiring a fiber gasket. Go HERE for the Primary Cover Gasket. This is INTERFACE CMP-4200...

Grade 9 Primary Front Sprocket Nut

Through Hardened Washer for Engine Sproket Nut.