The 24100 is a 12v 65 amp alternator, a new aftermarket direct replacement engineered to match the fit, form, and function of the original alternator. Specifications: - Voltage: 12V - Output: 65 amp Vehicle Compatibility: - Makes: Case/IH, Caterpillar, Fermec, Lister Petter, Manitou, Massey Ferguson, Rover (Europe) (1982-2016) - Models include: Rover (Europe) Montego; Fermec 640B; Massey Ferguson MF-274; Lister Petter LPWS2; Lister Petter LPW2; Fermec 660B - Confirm exact fitment with your year, make, and model before ordering. Cross-Reference / Interchange Numbers: - Replaces / compatible with: 12072, 12074, 12239, 14056, 1475-922-M91, 1475-922-M92, 1475-923-M91, 188590A1, 20517, 20692 (plus 187 more on file). Why ePartsGlobal: specialist in heavy-duty starters, alternators, and charging-system electrical parts. Backed by a 1-year warranty, free shipping on orders over $19.95, and fast fulfillment. Ships from USA.