Notes: 129649-18010 TURBINE, RHF4 is original YANMAR product. 129649-18010 TURBINE, RHF42 is commonly used in transmissions/axles/engines 4TNV84T-BGKL, 4TNV84T-BGKLF, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849