Yanmar 3 Water Cooled Diesel Engine Cylinder Head Assembly 3TNV80 Custom

This complete Engine Cylinder Head Assembly is engineered for Yanmar 3TNV80 three-cylinder water-cooled diesel engine, a core replacement component widely used on compact construction machinery. The Engine Cylinder Head forms the combustion chamber, integrates intake and exhaust ports, injector mounting seats and cooling water channels, controlling gas exchange and heat dissipation during engine operation. Our Engine Cylinder Head comes fully pre-assembled with valves, valve springs, retainers and valve seats, known in the repair industry as a loaded cylinder head. It eliminates the complicated valve assembly work, saving plenty of labor time for engine rebuild and machine maintenance.
 

Made of high-strength cast iron, this Engine Cylinder Head is processed with precision CNC machining to guarantee flatness of the sealing surface. Every finished unit goes through hydraulic pressure leakage testing before packaging, to prevent coolant leakage and gas blow-by issues. It is designed to withstand continuous high temperature and heavy load working conditions on job sites. When your original cylinder head suffers cracking, warping, valve seat wear or compression loss, this assembly can serve as a direct replacement. It restores engine compression, fixes power drop, overheating and abnormal exhaust troubles, delivering stable and reliable performance for your equipment.

Fitment & Application

This 3TNV80 Engine Cylinder Head Assembly is designed for Yanmar 3TNV80 diesel engine. It is commonly fitted on mini excavators, compact loaders, agricultural tractors and stationary power units equipped with this engine model. Many well-known micro excavator brands adopt the Yanmar 3TNV80 powerplant, so this cylinder head assembly is a popular overhaul spare part for those machines. Please double-check your engine model and confirm part compatibility before placing your order to avoid mismatched spare parts.