NEW ALTERNATOR FITS JOHN DEERE TRACTOR 4030 4040 4240 4430 4440 4630 4640 2150 100% NEW and Made with the Highest Quality Components Available Full One Year Warranty Computer tested for consistent Quality and unsurpassed reliability Alternator - Voltage: 12V Amperage: 61 Amps Fan: External Regulator: Internal Source: Aftermarket