Notes: 171048-55840 PIN is original YANMAR product. 171048-55840 PIN5 is commonly used in transmissions/axles/engines YPU23V, YPU35V, YPU45V, 3TNV76-KPU, 3TNV88-BKPU, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849