Alternator John Deere Combines 4400 4420 6600 6602 6620 6622 7700 7720 7722 8820 9400 9500 9600 9650, Cotton Pickers 7440 7445 9920 9930 9940 9950, Crawlers 450G 455G 550G 555G 650G, Loaders 344E 444E 544 624E 644E, Industrial Tractors 450G, Windrowers 3430 3830 3930 New Aftermarket Part (Not Rebuilt/Refurbished/Repurposed) Please verify this is the right part number before ordering