Notes: 26554-060182 SCREW, M6X18 is original YANMAR product. 26554-060182 SCREW, M6X185 is commonly used in transmissions/axles/engines L100N5-GE, L100N5-GETMA, L100N5-GTMA, L100N2-VEAMK, L100N2-VEMK, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849