Notes: 129100-61850 PLUG, 12 is original YANMAR product. 129100-61850 PLUG, 125 is commonly used in transmissions/axles/engines L48AE-DEGMA, L70AE-DEGMA, L100AE-DEGMA, L48AE-DEGMA, L70AE-DEGMA, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849