Notes: 26450-080452 BOLT, M8X 45 is original YANMAR product. 26450-080452 BOLT, M8X 455 is commonly used in transmissions/axles/engines 4TNV88-ZSTB, 4TNV88-ZSTB1, 4TNV88-BXYB1, 4TNV88-BXYB, 4TNV88-BXPYBBT, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849