· NEW Premium Replacement Alternator · One Year Warranty · 12 Volt 51 Amp · Motorola Type with 2 Spade Attached Voltage Regulator Connector · Complete with 1 Groove Pulley Replaces These Numbers: John Deere AR15009, AR40257, AR40420, AR41592, AR42110, AR43632, AT27827, TY1430, TY24307, TY26017, AR38429, AR38458, AR40420, AR47937, AT21229, SE501357, Motorola 10-39, 8AR2025K, A12NJD602, RA12N55JD1, RA12N55JD5, RA12N55JD6, RA12N55JD7, RA12N55JD8, RA12NJD604 Applications John Deere Agricultural Tractor 3020 4-240 Gas 1969-1972 3020 4-270 Diesel 1969-1972 4020 360 Gas 1969-1972 4020 404 Diesel 1969-1972 410 4 Cyl. 3.60L 3595cc 219cid 1981-1986 410 Diesel Engines 1973-1980 410 Gas Engines 1973-1980 4620 6-404 Diesel 1969-1973 5020 6-531 Diesel 1966-1972 6030 6-531 Diesel 1970-1977 7020 404 Turbo Diesel 1971-1975 7520 Farm Tractor 6-531 Diesel 1971-1975 John Deere Backhoe 210C 1985-1986 310B 1983-1986 310B Diesel Engines 1971-1986 310B Gas Engines 1971-1986 310C 1987-1992 315C 1987-1992 410C 1987-1992 610B 1983-1986 JD310 Gas or Diesel Engines JD500C 1974-1985 John Deere Cotton Picker 6000 Hi Cycle 219 Diesel 1975-1978 John Deere Engines - Industrial 3164D 4219DF 4239D / 4239T 4276D / T 6329D John Deere Excavator 690 / 690A 404 Diesel 1970-1983 John Deere Power Unit 135 1960-1982 152 1960-1982 202 Diesel Engines 202 Gas Engines 362 404 500 Power Unit 1965-1975 6619 EA-135 1960-1982 EA-152 1960-1982 EA-180 1960-1982 EA-202 1960-1982 NA-135 NA-152 NA-180 NA-202 John Deere Sprayer 600 / 600A 152 Diesel 1973-1978 6000 219 Diesel 1975-1979 700 1973-1978 734 1973-1978 John Deere Tractor - Industrial 310 Diesel Engines 1971-1986 310 Gas Engines 1971-1986 310A 1976-1983 310A Diesel Engines 1971-1986 310A Gas Engines 1971-1986 410B 1983-1986 410B Diesel Engines 1971-1986 500C Diesel Engines 1967-1982 510 Tractor 1967-1986 510B 1975-1986 510C 1985-1992 610C 1987-1989 710B 1983-1989 710C 1983-1986 710C 1989-1993 760A 531 Diesel 1969-1976 JD500 Gas Engines 1965-1967 JD500A Gas Engines 1967-1970 JD500B Gas Engines 1969-1970 JD600 Gas Engines 1964-1970 JD700 531 Diesel 1967-1974 JD700A 531 Diesel 1967-1974 JD760A 531 Diesel 1969-1976 John Deere Tractor - Lawn 180 Tractor Diesel Engines 180 Tractor Gas Engines 300 Tractor 1965-1975 400 Lawn Tractor 1978-1983 John Deere Tractor - Utility 4320 Utility Tractor 6-404 Diesel 1969-1973 4520 Utility Tractor 6-404 Diesel 1969-1973 John Deere Windrower 2250 225 Chrysler Gas 1975-1978 2270 4-219 Diesel 1975-1978 2280 All Engines 1975-1985 3430 4 Cyl. 3.91L 3883cc 237cid 1986-1992 3830 4 Cyl. 3.91L 3883cc 237cid 1986-1992 880 135 Gas 1970-1980 880 180 Gas 1970-1980 880 202 Diesel 1970-1980 Specifications OEM(s): Delco, Leece Neville, Mando, Motorola Voltage: 12 Amps:51 Regulator Clock: 12:00 Fan Location: External Regulator Location: Internal Polarity: Insulated Weight: 9.3 lbs.