Notes: 123907-22050 RING SET, PISTON is original YANMAR product. 123907-22050 RING SET, PISTON5 is commonly used in transmissions/axles/engines 4TNV106TXTBL2, 4TNV106TXTBL1, 4TNV106TXTBL, 4TNV106T-XTBL, 4TNV106GGB1B, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849