Universal Oil Pressure Gauge (0 - 80 PSI) Fits Massey Ferguson Tractor | 506902M92 Farmall you must have the 3

you must have the 3 numbers from the top housing

4000 series All 4 cylinder gas

303 Using AUTOLITE IAD-6004-2E Distributor w/ 3 3/8"" O

Carb mounting gasket included

Universal Oil Pressure Gauge (0 - 80 PSI) Fits Massey Ferguson Tractor | 506902M92 Farmall you must have the 3Quality Aftermarket Universal Oil Pressure Gauge (0 80 PSI) For Massey Ferguson Tractor Models: TE20, To20, TO30, TO35, F40, FE35, 35, 50, 65, 85, 88, Super 90, 135, 150, 165, 175, 180, 303 205, 20, 30, 202, 203, 204, 302, 304, 356, 2135, 2200, 2500, 60 All listed models using 80 Lb. gauge Specifications Mounts with studs and a bracket in the dash in a 2" diameter hole No logo Black face with white letters Chrome bezel 1 8" NPT male thread May vary