Cork Valve Cover Gasket Fits John Deere Model 50 Replaces Part # Fits JDS925 & BOne New Aftermarket Replacement Cork Valve Cover Gasket Fits John Deere Model 50 Tractor This aftermarket cork valve cover (tappet cover) gasket is a direct replacement for the Fits John Deere Model 50 tractor engine. It seals the valve tappet cover to the engine block, preventing oil leaks and keeping the top end of the engine clean and properly lubricated. The gasket is cut from cork material and matches the original profile for a reliable, leak