Notes: 123951-77210 ALTERNATOR,12V-55A is original YANMAR product. 123951-77210 ALTERNATOR,12V-55A2 is commonly used in transmissions/axles/engines 4TNV94L-ZWWN, 4TNV94L-ZWWN, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849