Bevel gear with 17 teeth and 25mm bore and machined keyway. This precision manufactured replacement pinion gear is for fitment in the row unit gearbox on CNH Case 900 and 1000 series maize row header. Manufactured by 'APB' - Agri Parts Bologna and 100% interchangeable with the original item. Always check serial number to ensure correct build and fitment. (Note should always be replaced as a pair with mating gear). OEM Code 199489C1 (18AP004121).