This fan is manufactured in stamped steel to original factory specifications replicating the original fan blade which was installed as original equipment on various GM models with 19-1/2" diameter, 7 blade fan. Replaces original GM part number # 3991431.
Additional Information
Note: Measurements: 2.5" inside diameter, 4 x 3.25" bolt pattern
Chevrolet Passenger Car Applications:
1971-1971 Chevrolet Passenger (with 36 Amp Except Police/Taxi)
1971-1974 Chevrolet Impala, Bel Air, Caprice (V8 with C.A.C.)
1971-1974 Chevrolet Taxi/Police (V8 Except C.A.C.)
1971-1974 Chevrolet Chevelle (with 307, 350 63 Amp C.A.C.)
1975-1975 Chevrolet Chevelle (with 350, 400, 61 Amp)
1976-1978 Chevrolet Chevelle (V8 with 61 Amp)
1973-1973 Chevrolet El Camino ((with 454 with C.A.C.)
1976-1978 Chevrolet El Camino (V8 with 61 Amp)
1976-1978 Chevrolet Monte Carlo (V8 with 61 Amp)
Chevrolet / GMC Truck Applications:
1968-1970 Chevrolet Pickup C10-30 with AC, Heavy Duty Cooling, 396)
1971-1972 Chevrolet PickupC30 D-D, with MHC 400)
1971-1972 Chevrolet Pickup, Blazer, Suburban (with 400)
1973-1978 Chevrolet Pickup/Blazer/Jimmy/Suburban (2 WD 454 Except C.A.C.)
1973-1978 Chevrolet Pickup/Blazer/Jimmy/Suburban (4 WD 305, 307, 350 with C.A.C.)
1973-1978 Chevrolet Pickup/Blazer/Jimmy/Suburban( 2 WD 305, 307, 350 with C.A.C.)
1975-1978 Chevrolet (4 WD, K1 400 Except C.A.C.)
1978-1978 Chevrolet Pickup/Blazer/Jimmy/Suburban (C1, Diesel)
1975-1975 Chevrolet Van G2-3, (400 2nd Design)
1975-1978 Chevrolet Van G1-2-3 (with A/T, with C.A.C HD400)
1976-1978 Chevrolet Van G1-2-3, (400)
1979-1979 Chevrolet Van G1-2-3,(250, 305 with A/T, HDC)
1979-1979 Chevrolet Van G1-2-3, (400)
GMC Sprint Applications:
1975-1977 GMC Sprint (V8 with 61 Amp)
Pontiac Applications:
1976-1976 Pontiac A/B/G Models (350, 400, 455, with AC)
1977-1977 Pontiac A Models (305, 350l, with AC)
1977-1977 Pontiac A/G Models (301, 350, 400 with AC)
1977-1979 Pontiac Ventura (305, 350l, with AC)
1977-1979 Pontiac Phoenix (305, 350l, with AC)
Buick Applications:
1977-1977 Buick A Bodies (305U, 350l with AC)
1978-1979 Buick X Bodies (305, 350 with AC, HDC)
Oldsmobile Applications:
1977-1979 Oldsmobile Omega (with 305, 350l with AC)
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
