Notes: 26226-100502 STUD, M10X 50 is original YANMAR product. 26226-100502 STUD, M10X 505 is commonly used in transmissions/axles/engines L48N6-SYSH, L48N5-GTMAYI, L48N6-PTMYI, L48N6-SYSHYI, L48N6-SYSH, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849