C3NN9G504A Carburetor Main Load Adjusting Needle Fits Ford 801 901 4cyl 4000One New Aftermarket Replacement Carburetor Main Load Adjustment Needle Assembly "T" Handle Style that Fits John Deere Tractor models: M, MC, MI, MT, MTN, MTW, 40, 420, 430, 440 Fits Ford New Holland Tractor models: [ 4000 4 Cylinder, 801, 811, 821, 841, 851, 861, 871, 881, 901, 941, 951, 961, 971, 981, 1801, 1811, 1821, 1841, 1871, 1881, 4030, 4031, 4040, 4110, 4120, 4121, 4130, 4131, 4140 (1958 1964 with 172 Fits Cubic Inch engines and with Marvel