Yanmar S4D84E-6BMED Bare Cylinder Block

This bare cylinder block is engineered as a direct replacement for the Komatsu S4D84E-6BMED diesel engine, which shares the base architecture with the Yanmar 4TNE84 series. The casting is manufactured from high-strength gray iron to withstand high combustion pressures and thermal cycling typical in compact construction equipment. The block features four cylinders with integrated main bearing caps and precision-machined decks for cylinder liner installation. It is supplied without internal components such as crankshaft, pistons, or camshaft, allowing for custom rebuild specifications. Compatible with engine variants including S4D84E-5K, S4D84E-5P-BA, and Yanmar 4TNV84T.