Notes: 11431C-21420 FLYWHEEL is original YANMAR product. 11431C-21420 FLYWHEEL5 is commonly used in transmissions/axles/engines L100N5-GY2, L100N5-GEY2, L100N5-GEY, L100N5-GTMA, L100N5-GE, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849