Notes: 11431C-21710 CRANKSHAFT ASSY,D is original YANMAR product. 11431C-21710 CRANKSHAFT ASSY,D5 is commonly used in transmissions/axles/engines L100N1-REMK2, L100N2-VEAMK2, L100N2-VEMKYI, L100N2-VEAMKYI, L100N1-REMKYI, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849