Proform 66445.1N 100 AMP for Select Avanti II, Buick Apollo, Buick Centurion, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 350, Buick GS 400, Buick GS 455, Buick Gran Sport, Buick Invicta, Buick LeSabre, Buick Regal, Buick

Can you tell the difference? Most chrome alternators look nearly the same, and that's why what's on the inside is so critical. Reliability starts with how it's made. Choosing PROFORM means choosing alternators with components produced by highly specialized machines, assembled by highly trained personnel using dedicated jigs and equipment, with everything 100% new for maximum longevity and optimum performance. After assembly each alternator is individually tested at the factory. Finally, it's boxed with a quality assurance graph that documents the specific unit's output performance. We do the testing, not you! And PROFORM proves it!

100 AMP Model

Fits: 1972-1987 Avanti II, 1973-1975 Buick Apollo, 1971-1973 Buick Centurion, 1973-1986 Buick Century, 1963-1983 Buick Electra, 1963-1979 Buick Estate Wagon, 1970-1972 Buick GS, 1968-1969 Buick GS 350, 1968-1969 Buick GS 400, 1970-1972 Buick GS 455, 1965-1967 Buick Gran Sport, 1963 Buick Invicta, 1963-1984 Buick LeSabre, 1973-1987 Buick Regal, 1963-1982 Buick Riviera, 1963-1985 Buick Skylark, 1986 Buick Somerset, 1985 Buick Somerset Regal, 1963-1969 Buick Special, 1964-1972 Buick Sportwagon, 1963-1970 Buick Wildcat, 1972-1974 Checker Aerobus, 1972-1982 Checker Marathon, 1972-1974 Checker Taxicab, 1959 Chevrolet 3B, 1959 Chevrolet 3C, 1959 Chevrolet 3D, 1959 Chevrolet 3E, 1959 Chevrolet 3F, 1959 Chevrolet 3G, 1958-1981 Chevrolet Bel Air, 1958-1972 Chevrolet Biscayne, 1972-1987 Chevrolet Blazer, 1959-1972 Chevrolet Brookwood, 1975-1986 Chevrolet C10, 1960-1974 Chevrolet C10 Pickup, 1967-1986 Chevrolet C10 Suburban, 1982-1985 Chevrolet C15, 1975-1987 Chevrolet C20, 1960-1974 Chevrolet C20 Pickup, 1967-1986 Chevrolet C20 Suburban, 1975-1986 Chevrolet C30, 1960-1974 Chevrolet C30 Pickup, 1983-1987 Chevrolet C35, 1960-1962 Chevrolet C40, 1970-1979 Chevrolet C50, 1970-1979 Chevrolet C60, 1979-1980 Chevrolet C70, 1969-1987 Chevrolet Camaro, 1966-1987 Chevrolet Caprice, 1985 Chevrolet Cavalier, 1982-1986 Chevrolet Celebrity, 1964-1973 Chevrolet Chevelle, 1963-1968 Chevrolet Chevy II, 1982-1983 Chevrolet Citation, 1984-1985 Chevrolet Citation II, 1958-1987 Chevrolet Corvette, 1958 Chevrolet Del Ray, 1959-1987 Chevrolet El Camino, 1970 Chevrolet Estate, 1975-1987 Chevrolet G10, 1971-1974 Chevrolet G10 Van, 1975-1987 Chevrolet G20, 1967-1974 Chevrolet G20 Van, 1975-1987 Chevrolet G30, 1972-1974 Chevrolet G30 Van, 1958-1985 Chevrolet Impala, 1975-1986 Chevrolet K10, 1960-1974 Chevrolet K10 Pickup, 1967-1986 Chevrolet K10 Suburban, 1975-1986 Chevrolet K20, 1960-1974 Chevrolet K20 Pickup, 1967-1986 Chevrolet K20 Suburban, 1977-1986 Chevrolet K30, 1970-1974 Chevrolet K30 Pickup, 1975-1986 Chevrolet K5 Blazer, 1959-1972 Chevrolet Kingswood, 1975-1983 Chevrolet Malibu, 1970-1987 Chevrolet Monte Carlo, 1975-1979 Chevrolet Monza, 1958-1961 Chevrolet Nomad, 1970-1979 Chevrolet Nova, 1975-1979 Chevrolet P10, 1973 Chevrolet P10 Van, 1975-1987 Chevrolet P20, 1970-1974 Chevrolet P20 Van, 1975-1987 Chevrolet P30, 1970-1974 Chevrolet P30 Van, 1959-1961 Chevrolet Parkwood, 1987 Chevrolet R10, 1987 Chevrolet R10 Suburban, 1987 Chevrolet R20, 1987 Chevrolet R20 Suburban, 1987 Chevrolet R30, 1985-1986 Chevrolet S10 Blazer, 1958 Chevrolet Sedan Delivery, 1958-1987 Chevrolet Suburban, 1970-1972 Chevrolet Townsman, 1958-1960 Chevrolet Truck, 1987 Chevrolet V10, 1987 Chevrolet V10 Suburban, 1987 Chevrolet V20, 1987 Chevrolet V20 Suburban, 1987 Chevrolet V30, 1958 Chevrolet Yeoman, 1972-1987 Excalibur Phaeton, 1960-1963 GMC 1000 Series, 1960-1963 GMC 1500 Series, 1960-1963 GMC 2500 Series, 1960-1966 GMC 3000, 1960-1966 GMC 3500, 1975-1978 GMC C15, 1975-1978 GMC C15 Suburban, 1967-1974 GMC C15/C1500 Pickup, 1967-1974 GMC C15/C1500 Suburban, 1979-1986 GMC C1500, 1979-1986 GMC C1500 Suburban, 1975-1978 GMC C25, 1975-1978 GMC C25 Suburban, 1967-1974 GMC C25/C2500 Pickup, 1967-1974 GMC C25/C2500 Suburban, 1979-1986 GMC C2500, 1979-1986 GMC C2500 Suburban, 1975-1978 GMC C35, 1967-1974 GMC C35/C3500 Pickup, 1979-1986 GMC C3500, 1979 GMC C5000, 1979 GMC C6000, 1979-1980 GMC C7000, 1978-1987 GMC Caballero, 1975-1978 GMC G15, 1967-1974 GMC G15/G1500 Van, 1979-1987 GMC G1500, 1975-1978 GMC G25, 1969-1974 GMC G25/G2500 Van, 1979-1987 GMC G2500, 1975-1978 GMC G35, 1972-1974 GMC G35/G3500 Van, 1979-1987 GMC G3500, 1972-1987 GMC Jimmy, 1975-1978 GMC K15, 1975-1978 GMC K15 Suburban, 1967-1974 GMC K15/K1500 Pickup, 1967-1974 GMC K15/K1500 Suburban, 1979-1986 GMC K1500, 1979-1986 GMC K1500 Suburban, 1975-1978 GMC K25, 1975-1978 GMC K25 Suburban, 1967-1974 GMC K25/K2500 Pickup, 1967-1974 GMC K25/K2500 Suburban, 1979-1986 GMC K2500, 1979-1986 GMC K2500 Suburban, 1977-1978 GMC K35, 1968-1974 GMC K35/K3500 Pickup, 1979-1986 GMC K3500, 1967 GMC P15/P1500 Van, 1979 GMC P1500, 1975-1978 GMC P25, 1967-1974 GMC P25/P2500 Van, 1979-1987 GMC P2500, 1975-1978 GMC P35, 1967-1974 GMC P35/P3500 Van, 1979-1987 GMC P3500, 1987 GMC R1500, 1987 GMC R1500 Suburban, 1987 GMC R2500, 1987 GMC R2500 Suburban, 1987 GMC R3500, 1983-1986 GMC S15 Jimmy, 1971-1977 GMC Sprint, 1960-1966 GMC Suburban, 1960 GMC Truck, 1987 GMC V1500, 1987 GMC V1500 Suburban, 1987 GMC V2500, 1987 GMC V2500 Suburban, 1987 GMC V3500, 1970-1974 Iso Grifo, 1972-1974 Iso Lele, 1972-1974 Iso S4 Fidia, 1964-1971 Oldsmobile 442, 1963-1984 Oldsmobile 98, 1985-1986 Oldsmobile Calais, 1971-1984 Oldsmobile Custom Cruiser, 1963-1987 Oldsmobile Cutlass, 1978-1984 Oldsmobile Cutlass Calais, 1982-1983 Oldsmobile Cutlass Ciera, 1980-1983 Oldsmobile Cutlass Cruiser, 1975-1980 Oldsmobile Cutlass Salon, 1967-1987 Oldsmobile Cutlass Supreme, 1976 Oldsmobile Cutlass Tiara, 1967-1968 Oldsmobile Delmont 88, 1965-1986 Oldsmobile Delta 88, 1963-1966 Oldsmobile Dynamic 88, 1963-1972 Oldsmobile F85, 1963-1964 Oldsmobile Fiesta, 1986 Oldsmobile Firenza, 1963 Oldsmobile Jetfire, 1964-1966 Oldsmobile Jetstar 88, 1964-1965 Oldsmobile Jetstar I, 1973-1984 Oldsmobile Omega, 1963-1979 Oldsmobile Starfire, 1963-1964 Oldsmobile Super 88, 1966-1984 Oldsmobile Toronado, 1964-1975 Oldsmobile Vista Cruiser, 1983-1986 Pontiac 6000, 1965-1971 Pontiac Acadian, 1964-1969 Pontiac Beaumont, 1962-1986 Pontiac Bonneville, 1962-1981 Pontiac Catalina, 1967-1970 Pontiac Executive, 1985 Pontiac Fiero, 1967-1987 Pontiac Firebird, 1964-1973 Pontiac GTO, 1973-1986 Pontiac Grand Am, 1975-1983 Pontiac Grand LeMans, 1962-1987 Pontiac Grand Prix, 1971-1978 Pontiac Grand Safari, 1971-1975 Pontiac Grandville, 1962-1981 Pontiac Laurentian, 1963-1981 Pontiac LeMans, 1962-1986 Pontiac Parisienne, 1977-1984 Pontiac Phoenix, 1962-1966 Pontiac Star Chief, 1962-1970 Pontiac Strato-Chief, 1978-1979 Pontiac Sunbird, 1963-1970 Pontiac Tempest, 1971-1977 Pontiac Ventura

Please review Specifications and the detailed fitment table for notes and exceptions.