550e O-Ring, O-Ring 550e, Suitable for B-igg-&S-Rat-on Fuel Tank Gas Cap Mower 2sets

["Two sets of O-rings suitable for fuel tank air cap 550e lawn mower.","When the sealing function of your fuel tank cap fails, you don't need to replace the entire cap, just replace the O-ring.","Replacing the O-ring can achieve the goal of saving money and extending the use time of the cap."]