Replacement Trailer Oil Cap 8001 for 7,000lb - 8,000lb Kodiak Disc BrakesThis replacement Trailer Oil Cap is designed for 7,000lb to 8,000lb Rated Kodiak Disc Brakes, that use Oil instead of Grease for their bearing lubrication method. The Oil Cap is Manufactured by Kodiak, so it is a direct replacement to the cap that comes with their Oil based Hydraulic Brake Kits. This Replacement Oil Cap Kit includes a new O Ring, Plug, and the Cap itself. With the clear plastic cap, you can always see the current Oil Level to be sure