Ford Industrial:1801, 1811, 1821, 1841, 1871, 1881, 4030, 4040, 4130 4 Cylinder 172 Gas Engine. Complete Engine / Rebuild Overhaul Kit Ford 4 cylinder Sleeved 172 Gas Engine:800, 801, 811, 820, 821, 840, 841, 850, 851, 860, 861, 871, 881, 900, 901, 940, 941, 950, 951, 960, 961, 971, 981,4000 4 cylinder, 4031, 4120, 4121, 4131,4110, 4140.