Notes: 27241-400000 PLUG, 40 is original YANMAR product. 27241-400000 PLUG, 405 is commonly used in transmissions/axles/engines 3TNE74-AF, 3TNE74-AK, 3TNE74-AMM, 3TNE74C-EMG, 3TNE74C-ENP, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849