Notes: 129488-44981-2 SUPPORT, B is original YANMAR product. 129488-44981-2 SUPPORT, B5 is commonly used in transmissions/axles/engines 4TNE88-G1A01, 4TNE88-EG1A, 4TNE88-ESA, 4TNE88-SA, 4TNE88-G1A1, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849