Yanmar 3TNC78 Overhaul Rebuild Kit

This overhaul rebuild kit is engineered for the Yanmar 3TNC78 series 3-cylinder direct injection liquid-cooled diesel engines (1.146 L displacement, 78 mm bore, 80 mm stroke). The kit contains standard-size components: three pistons with pins and snap rings, three semi-finished cylinder liners, three piston ring sets, main and rod bearing sets, thrust washers, full gasket set with head gasket, intake/exhaust valves, valve guides, and valve seats. Designed to restore engine compression and oil consumption to factory specifications. Compatible with engine variants 3TNC78, 3TNC78E, 3TNC78L used in Yanmar tractors (F7HN, F180, F190), combines (CA240, CA250, CS21), and equivalent Komatsu 3D78N / John Deere 3011DF applications.