NEW MANIFOLD & GASKETS Fits John Deere 4000, 4010, 4020, 4230One New Aftermarket Replacement Gas Intake Manifold and Gasket Kit Fits John Deere Tractors This kit includes one aftermarket replacement gas intake manifold and a 3 piece intake manifold gasket set Fits John Deere (Fits JD) 4000 series tractors. The intake manifold fits the gasoline engine air intake system on these classic row crop tractors. Note: on the Fits John Deere 4020, this manifold application applies to tractors with serial numbers up to