Notes: 183994-78760 WHEEL, DYNAMO is original YANMAR product. 183994-78760 WHEEL, DYNAMO5 is commonly used in transmissions/axles/engines L100N6-GEYT, L100N6-GEYTYI, L100N5-GEYT, L100N5-GEYTYI, 6600TE5EBG1, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849