Notes: 129120-33051 PLUG, DRAIN is original YANMAR product. 129120-33051 PLUG, DRAIN5 is commonly used in transmissions/axles/engines 4TNE84-EMAX, 3TNE84T-NS, 4TNE84T-NS, 4TNE88-NS, 4TNE84-GB2S, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849