Notes: 11431C-45310 INSULATOR, NOISE is original YANMAR product. 11431C-45310 INSULATOR, NOISE5 is commonly used in transmissions/axles/engines L100N5-PETMYI, L100N5-PTMYI, L100N5-MTMYI, L100N5-METMRYI, L100N2-VEMK2, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849