R4013G Manifold Gasket Set Fits Allis-ChalmersOne New Aftermarket Replacement Manifold Gasket Set for Allis Chalmers, Cockshutt, and CO OP Tractors This aftermarket replacement manifold gasket set seals the intake and exhaust manifold(s) to the cylinder head on gasoline powered Allis Chalmers D19 tractors and their Cockshutt and CO OP badge engineered equivalents. A properly sealing manifold gasket set is essential to maintain correct air fuel mixture delivery and prevent exhaust leaks that can