Outside diameter is 1.375"Inside diameter is 1"Can be reusedMade of neoprene for longevityFits valve covers with 1.22" outside diameter
Mr. Gasket Valve Cover Plug is made of neoprene to ensure a positive oil seal and prevent leakage. It is designed to fit to most of the die cast and stamped valve covers. The hole plugs follow the style of a breather and will fit valve covers with 1.22" outside diameter.
Brand: Mr. Gasket, Model: 6375