Installation of a Harley Davidson Derby Cover

by Chris Gilliland

Harley-Davidson's motorcycles are an outlet for self-expression, allowing the machine's owner to personalize almost every facet and component to their taste. Even components as common as the clutch inspection cover, better known as the Derby cover, can be replaced with a custom piece to reflect the owner's personality. Installing a new Derby cover is a simple task that requires only a few tools. However, it is recommended that you use a stand to hold your motorcycle upright, in order to prevent fluid from leaking out of the primary while installing the new Derby cover.

Place the motorcycle into an upright position using a motorcycle stand or lift for support.

Use a Torx-27 driver to unscrew all five bolts that secure the original derby cover to the primary housing on the right side of the motor. Set the bolts aside. Pull the derby cover and its gasket off the primary housing.

Using a clean rag or towel, remove any oil from the derby cover gasket's mating surface on the primary housing.

Prepare the new derby cover and derby cover gasket. Flip the gasket so that the side with the words "Towards clutch" imprinted on it faces the primary housing. Align the triangular hole on the gasket with the top hole of the derby cover and place both pieces against the primary housing.

Insert a bolt and washer into the top hole on the derby cover to secure the cover against the primary housing, screwing it in slightly with a Torx-27 driver. Insert bolts and washers into the remaining holes on the derby cover.

Use a torque wrench to tighten the bolts to 84 to 108 inch-pounds, following a 5-pointed star pattern starting from the top center bolt, bottom left bolt, top right bolt, top left bolt, then the bottom right bolt.

Wipe away any spilled primary fluid or fingerprints from the primary housing and derby cover with a clean rag or towel. Lower the motorcycle from the stand or lift and place it onto its kickstand.

Items you will need

About the Author

An avid motorcyclist, Chris Gilliland has immersed himself into the two-wheeled world while balancing work life and raising three daughters. When he is not managing the parts department of a local, multi-line motorcycle dealership, Gilliland can often be found riding, writing or working on his motorcycle blog, Wingman's Garage.

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Photo Credits

  • photo_camera trittbrett einer harley image by Thomas Duchauffour from