【Compatible With】: Compatible with Perko 540/0540 Series fuel, diesel, water, and waste filler caps.Appropriate for suitable for threaded aluminum and stainless steel ports on fishing boats, sailboats, and other vessels. Great for regular maintenance or seasonal use of marine fuel fill o'rings and deck fill o-rings
【Replacement Part Number】: 54000099B
【Oil Resistant Rubber】: The Boat Gas Deck Fill O-Ring Cap Gasket is made of marine-grade oil-resistant rubber. It resists erosion from seawater and fuel (gasoline/diesel), avoiding the problems of conventional rubber—such as swelling when exposed to oil and aging upon contact with saltwater—and also stands up to alternating high and low temperatures as well as other harsh outdoor conditions
【Excellent sealing performance】: Excellent sealing performance, The gas cap gasket helps reduce leaks in boat fuel fill caps, diesel tank inlets, and deck waste fill ports