Notes: 129C01-11700 HEAD ASSY, CYLINDER is original YANMAR product. 129C01-11700 HEAD ASSY, CYLINDER5 is commonly used in transmissions/axles/engines 4TNV86CT-PTB, 4TNV86CT-PTB1, 4TNV86CT-KKTFK, 4TNV86CT-MKTFK, 4TNV86CHT-MAW, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849