Aftermarket 11101-78210 Cylinder Head Assembly

This cylinder head is engineered for the Hino N04C and N04CT 4.0-liter inline four-cylinder common rail diesel engines. Manufactured from high-grade cast iron, the component undergoes precision CNC machining to ensure exact valve seat concentricity, injector bore alignment, and deck surface flatness. The assembly integrates valve guides, seats, and pre-combustion chambers where applicable, ready for valve train installation. Designed as a direct replacement for OEM part numbers 11101-78210, 11101-782100, and 11101-78171, this head restores compression integrity and combustion efficiency in Hino 300 Series light-duty trucks and Toyota Dyna, Toyoace, and Coaster commercial vehicles. The casting structure provides high thermal fatigue resistance under continuous heavy-load operation typical of urban distribution and construction duty cycles.