Notes: 11431C-11110 VALVE, EXHAUST is original YANMAR product. 11431C-11110 VALVE, EXHAUST5 is commonly used in transmissions/axles/engines L100N6-GEHYSYI, L100N6-GEHYS, L100N5-PTMYI, L100N5-PETMYI, L100N5-MTMYI, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849