Notes: 129418-18010 TURBINE, RHB51 is original YANMAR product. 129418-18010 TURBINE, RHB515 is commonly used in transmissions/axles/engines 4TNE84T-ENSW, 4TNE84T-EWA, 4TNE84T-EHP, 4TNE84T-HP, 4TNE84TG1A01, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849