This derby cover is 7 ¾ inches in diameter. Please check your existing derby cover to confirm that it is 7 ¾ inches also. This part is also made with a diameter of 7 ¼ inches.
Our process is to engrave the design onto a raw aluminum part. The engraved part is then sent to an HD qualified Chrome Plater.
After the part has been chrome plated, it is painted using PPG automotive grade enamel. The part is then baked using InfraRed lamps. HD has successfully lab tested our processing for paint adhesion, and for UV light fading.
Ink fades with UV light exposure. PPG auto paint will not fade.
There is a groove on the back of the part for the HD O-ring gasket.
For model years 1999-2006, this part requires the HD flat gasket 25416-99C.