3TNB78 Engine Overhaul Rebuild Kit. Compatible with Yanmar 3TNB78 Engine John Deere Generator. Compatible with Yanmar Excavator John Deere Compact Tractor. Package included: STD Engine Overhaul Rebuild Kit. 1 Set Full Gasket Kit with Head Gasket. 3 Pieces STD Cylinder Liners (Semi-finished). 3 Pieces STD Piston. 3 Sets STD Piston Rings. 3 Pieces STD Piston Pin. 3 Pairs STD Piston Clip. 6 Pieces Valve Guides. 3 Pieces Intake Valves. 3 Pieces Exhaust Valves. 3 Pieces Intake Valves Seats. 3 Pieces Exhaust Valves Seats. 1 Set STD Crankshaft / Main Bearing. If you need + 0.25mm + 0.5mm or another size. 1 Set STD Connecting Con Rod Bearing. 1 Set STD Thrust Washer / Bearing.