Notes: 114888-66740 PLUG, 18 is original YANMAR product. 114888-66740 PLUG, 185 is commonly used in transmissions/axles/engines L100ACE-DEG6D, L100ACE-DEG6, L70ACE-DE, L48ACE-DELBY, L70ACE-DELBY, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849