Engine Overhaul Kit Fits Allis Chalmers WD45, D17, 170, 175 Tractors 284361, 277290

4.125" overbore, aluminum concave head pistonsYou may also like Basic Carburetor Repair Kit Fits John Deere 3010 3020 4000 4010 4020 Tractors (For Zenith carburetors).