Notes: 129A00-13610 BOLT, M10X80 is original YANMAR product. 129A00-13610 BOLT, M10X805 is commonly used in transmissions/axles/engines 4TNV88C-PYBU, 4TNV86CT-PTB, 4TNV86CT-PTB1, 4TNV86CT-KKTF, 4TNV88C-DHKS, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849