Notes: 26450-100452 BOLT, M10X 45 is original YANMAR product. 26450-100452 BOLT, M10X 455 is commonly used in transmissions/axles/engines 4TNV94L-XHYB, 4TNV94L-XHYB2, 4TNV94L-PLK2, 4TNV94L-PIK, 4TNV94L-PIKA, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849