Upgrade your engine’s performance with this complete overhaul rebuild kit designed for Yanmar 4TNV106 series engines and Komatsu 4D106 Backhoe models (WB140-2N, WB150-2N). Built for durability and precision, this kit provides all essential components to restore your engine to factory standards, ensuring long-lasting reliability, reduced downtime, and maximum efficiency.
The kit includes gasket set, cylinder liners, pistons (STD), piston rings, main & rod bearings, thrust bearings, valves, valve guides, valve seats, piston pins, snap rings, and rod bushings. Each part is manufactured to meet or exceed OEM quality standards, giving you the confidence of perfect fitment and superior performance.
⚠️ Note: The cylinder liners are semi-finished and require additional machining for proper installation.
This overhaul kit is ideal for professional mechanics, workshops, and equipment owners looking for a cost-effective solution to extend the life of Yanmar and Komatsu engines.

