Fill/Inspection Cap

Extra large differential fill and inspection cap. Designed to allow quick access for  inspecting the ring gear. Features 1.5" diameter access hole. Threaded aluminum cap uses a rubber o-ring for a tight seal. Installation requires cutting a hole in to the top of the differential housing and welding on a threaded bung. Kit includes: one threaded bung, one cap and one o-ring. Plug kit can be ordered loose as a do-it your-self install or it can be ordered installed into a housing if you are ordering a housing at the same time.

Available options:

• Rock Assault Inspection Plug Kit - Loose, 140184-1-KIT
• Rock Assault Inspection Plug Kit - Installed, 140188-1-KIT