Allis Chalmers Major Engine Overhaul Kit for 4.203 Diesel engine. 4 Cyl. Direct Injection, Lip Seal. Standard bore 3.6020 (91.491mm). Kit includes: Piston Liner Kit, Main Bearing Set (5), Connecting Rod Bearing Set, Thrust Washer Set (4), Front Crankshaft Seal, Rear Crankshaft Seal, Valve Train Kit, Connecting Rod Bearing, Connecting Rod Bolt, Connecting Rod Nut, Upper Gasket Set, Lower Gasket Set without Seals, and Camshaft Bearing. Fits Allis Chalmers models: ACP40/50D, 40-50, and 700.