Notes: 119818-22950 RING SET, 0.25 OS is original YANMAR product. 119818-22950 RING SET, 0.25 OS5 is commonly used in transmissions/axles/engines 3TNE78A-BME, 3TNE78A-EHP, 3TNE78A-EMG, 3TNE78A-HP, 3TNE78A-MG, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849