Engine Oil Drain Sump Plug Gasket Fiber Washer 3/4" Fits Massey Ferguson MF 135One New Aftermarket Replacement Engine Oil Drain Sump Plug Gasket Fiber Washer Fits Massey Ferguson Tractors This 3 4" fiber washer seals the engine oil sump drain plug on Fits Massey Ferguson tractors, preventing oil leaks at the drain point. Replace this washer every time the engine oil is changed to ensure a proper seal. Compatible with Perkins engines commonly found in these models. Specifications Inside Diameter: 3 4" Outside Diameter: 15 16"