Notes: 160670-66350 COLLAR is original YANMAR product. 160670-66350 COLLAR5 is commonly used in transmissions/axles/engines L100N6-GEYT, L100N5-GEYT, L100N5-GEYTYI, L100N5-GY, L100N5-GY2, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849