Notes: 119C10-22550 RING SET, PISTON .25 is original YANMAR product. 119C10-22550 RING SET, PISTON .255 is commonly used in transmissions/axles/engines 3TNM74F-NCKTF, 3TNM74F-NGGE, 3TNM74F-NHGE, 3TNM74F-NHPGE, 3TNM74F-SAAY, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849