Notes: 23871-005000 PLUG, R005 is original YANMAR product. 23871-005000 PLUG, R0055 is commonly used in transmissions/axles/engines 3TNE68-NTB, 4TNE98-UPOMD, 4TNE98-UPOMD2, 4TNE98-TBA, 4TNE98-BQCKST, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849