Reviewed by 1 customer
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Comments about O Ring Only for Vented Fill 0540:
These ship from Perko. They are the original replacement part.
Found it hard to find perfect match at local hardware stores. Really wanted to make sure I had the right fit, if not we are talking about contamination in all fluids - gas, diesel and water.
Price seems pretty reasonable, but shipping could eat you up. I added to another order to get home delivery. Worse case ship to store if you can.
Look at your orings, if they are cracked, replace them.