Gasket Fits Ford 2000 4000 501 600 700 701 800 801 900 901 NAA Jubilee TractorOne New Aftermarket Replacement Exhaust Manifold Elbow Gasket Fits Ford (Fits Ford New Holland) Tractors This aftermarket replacement exhaust manifold elbow gasket seals the junction between the exhaust manifold and the exhaust elbow on Fits Ford 134 and 172 C. I. D. four cylinder gas engines. It is also sold under the White OEM number 1E424 and fits select Oliver and White tractors sharing the same drivetrain. Specifications Center to Center Bolt