Restore the air-tight seal on your deck fill cap with Captain O-Ring's replacement 54000099B o-rings. The 54000099B o-ring is compatible with Perko 540 / 0540 series deck fill caps. These caps are used with boat/marine gas, diesel, water, and waste fill systems. This o-ring measures approximately 1-3/4” across the inside diameter with a thickness of slightly over 1/8” (0.14”) for a perfect OEM fit.
Package contains three (3) o-rings. Restore multiple 540 series deck fill caps, or keep extras on hand as spares with this handy 3-pack.
Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA!