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OER 1964-90 Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Fan Clutch, OE Style, Thermal, 7" Diameter, 3.25" Fan Bolt Spacing 1236786

OER 1964-90 Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Fan Clutch, OE Style, Thermal, 7" Diameter, 3.25" Fan Bolt Spacing 1236786
$209.99 ea
NEWARRIVING SOONEstimated Ship Date 12/31/2025 (If Ordered Today)5 Available from OER as of 12/14/2025
Model: 4870117
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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1964-90 Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac; Fan Clutch; OE Style; Thermal; 7" Diameter; 3.25" Fan Bolt Spacing

Reproduction of the application specific, factory-style thermal fan clutch for various 1964-90 Chevrolet and other GM models. Each fan clutch is designed to replicate the original in design, appearance, and fit. Includes mounting hardware. Features an Eaton style coil type thermostatic element. Measures 7'' diameter, 1-3/4 bolt pattern at water pump, 1-1/2'' depth from fan to where it bolts to pump, 3-1/4'' bolt pattern for fan. Replaces a wide cariety of original OE part number #'s including 1236786, 1245632, and others.

Fan Clutch Specifications:
  • 1.75" water pump bolt spacing
  • 3-1/4" fan bolt spacing
  • 7" clutch diameter
  • Type: Thermal
Buick Applications
  • 1973-1981 Buick Century Base
  • 1975-1985 Buick Century Custom
  • 1980-1984 Buick Century Estate
  • 1985-1985 Buick Century Estate Wagon
  • 1976-1976 Buick Century Indianapolis 500 Pace Car
  • 1978-1985 Buick Century Limited
  • 1973-1975 Buick Century Luxus
  • 1984-1984 Buick Century Olympia Limited
  • 1975-1979 Buick Century Special
  • 1978-1981 Buick Century Sport
  • 1984-1985 Buick Century T-Type
  • 1978-1979 Buick Electra 225
  • 1980-1980 Buick Electra Estate Wagon
  • 1978-1985 Buick Electra Limited
  • 1978-1985 Buick Electra Park Avenue
  • 1964-1980 Buick Estate Wagon Base
  • 1968-1969 Buick GS 350 Base
  • 1964-1980 Buick LeSabre Base
  • 1985-1985 Buick LeSabre Collector's Edition
  • 1965-1985 Buick LeSabre Custom
  • 1977-1977 Buick LeSabre Custom Sport
  • 1979-1985 Buick LeSabre Limited
  • 1982-1982 Buick LeSabre Limited Edition F/E
  • 1978-1980 Buick LeSabre Sport
  • 1975-1987 Buick Regal Base
  • 1982-1983 Buick Regal Estate Wagon
  • 1987-1987 Buick Regal GNX
  • 1984-1987 Buick Regal Grand National
  • 1978-1987 Buick Regal Limited
  • 1982-1982 Buick Regal Limited Turbo
  • 1978-1982 Buick Regal Sport
  • 1976-1977 Buick Regal SR
  • 1983-1986 Buick Regal T-Type
  • 1982-1984 Buick Riviera Base
  • 1982-1982 Buick Riviera Limited Edition
  • 1983-1984 Buick Riviera Luxury
  • 1979-1980 Buick Riviera S
  • 1982-1985 Buick Riviera T-Type
  • 1983-1983 Buick Riviera XX Anniversary Edition
  • 1964-1979 Buick Skylark Base
  • 1968-1979 Buick Skylark Custom
  • 1976-1979 Buick Skylark S
  • 1978-1978 Buick Skylark Sport
  • 1975-1977 Buick Skylark SR
  • 1964-1969 Buick Special Base
  • 1964-1967 Buick Special Deluxe
  • 1964-1969 Buick Sportwagon
  • 1964-1969 Buick Sportwagon Base
  • 1968-1969 Buick Sportwagon Custom
Cadillac Applications
  • 1988-1990 Cadillac Brougham Base
  • 1988-1990 Cadillac Brougham d'Elegance
  • 1982-1985 Cadillac DeVille Base
  • 1982-1985 Cadillac DeVille Cabriolet
  • 1982-1986 Cadillac DeVille d'Elegance
  • 1986-1986 Cadillac DeVille Touring
  • 1981-1982 Cadillac Eldorado Base
  • 1981-1982 Cadillac Eldorado Biarritz
  • 1981-1981 Cadillac Eldorado Brougham d'Elegance
  • 1981-1982 Cadillac Eldorado Cabriolet
  • 1982-1982 Cadillac Eldorado Touring
  • 1985-1985 Cadillac Fleetwood 75
  • 1985-1985 Cadillac Fleetwood 75 Formal
  • 1985-1985 Cadillac Fleetwood Base
  • 1982-1986 Cadillac Fleetwood Brougham
  • 1985-1985 Cadillac Fleetwood Brougham Commercial Chassis
  • 1982-1986 Cadillac Fleetwood Brougham d'Elegance
  • 1985-1985 Cadillac Fleetwood d'Elegance
  • 1981-1982 Cadillac Seville Base
  • 1981-1982 Cadillac Seville Elegante
Chevrolet Applications
  • 1981-1981 Chevrolet Bel Air
  • 1980-1980 Chevrolet Camaro Base
  • 1980-1981 Chevrolet Camaro Berlinetta
  • 1980-1980 Chevrolet Camaro Rally Sport
  • 1981-1982 Chevrolet Camaro Sport
  • 1980-1981 Chevrolet Camaro Z28
  • 1980-1984 Chevrolet Caprice Classic
  • 1981-1982 Chevrolet Caprice Classic Estate
  • 1980-1981 Chevrolet Caprice Classic Landau
  • 1980-1980 Chevrolet Caprice Classic Sport
  • 1980-1984 Chevrolet Impala Base
  • 1981-1982 Chevrolet Impala Estate
  • 1980-1980 Chevrolet Impala Sport
  • 1978-1981 Chevrolet Malibu Base
  • 1978-1983 Chevrolet Malibu Classic
  • 1979-1980 Chevrolet Malibu Classic Estate
  • 1978-1981 Chevrolet Malibu Classic Landau
  • 1979-1980 Chevrolet Malibu Classic Sport
  • 1979-1980 Chevrolet Malibu Estate
  • 1979-1979 Chevrolet Malibu Landau
  • 1979-1979 Chevrolet Malibu Police
  • 1979-1980 Chevrolet Malibu Sport
  • 1978-1985 Chevrolet Monte Carlo
  • 1979-1982 Chevrolet Monte Carlo Base
  • 1978-1981 Chevrolet Monte Carlo Landau
  • 1978-1980 Chevrolet Monte Carlo Sport
Chevrolet Truck Applications
  • 1978-1980 Chevrolet C10 Big Ten
  • 1978-1981 Chevrolet C10 Cheyenne
  • 1981-1984 Chevrolet C10 Custom
  • 1978-1980 Chevrolet C10 Custom Deluxe
  • 1981-1981 Chevrolet C10 Deluxe
  • 1978-1984 Chevrolet C10 Scottsdale
  • 1978-1984 Chevrolet C10 Silverado
  • 1968-1972 Chevrolet C10 Pickup Base
  • 1968-1972 Chevrolet C10 Suburban Base
  • 1978-1980 Chevrolet C10 Suburban Custom Deluxe
  • 1978-1980 Chevrolet C10 Suburban Scottsdale
  • 1978-1980 Chevrolet C10 Suburban Silverado
  • 1978-1981 Chevrolet C20 Cheyenne
  • 1981-1986 Chevrolet C20 Custom
  • 1978-1980 Chevrolet C20 Custom Deluxe
  • 1981-1981 Chevrolet C20 Deluxe
  • 1978-1986 Chevrolet C20 Scottsdale
  • 1978-1986 Chevrolet C20 Silverado
  • 1968-1972 Chevrolet C20 Pickup Base
  • 1968-1972 Chevrolet C20 Suburban Base
  • 1981-1982 Chevrolet C20 Suburban Custom
  • 1978-1980 Chevrolet C20 Suburban Custom Deluxe
  • 1981-1981 Chevrolet C20 Suburban Deluxe
  • 1978-1982 Chevrolet C20 Suburban Scottsdale
  • 1979-1982 Chevrolet C20 Suburban Silverado
  • 1978-1981 Chevrolet C30 Cheyenne
  • 1981-1986 Chevrolet C30 Custom
  • 1978-1980 Chevrolet C30 Custom Deluxe
  • 1981-1981 Chevrolet C30 Deluxe
  • 1978-1986 Chevrolet C30 Scottsdale
  • 1978-1986 Chevrolet C30 Silverado
  • 1968-1972 Chevrolet C30 Pickup Base
  • 1978-1981 Chevrolet El Camino Base
  • 1978-1981 Chevrolet El Camino Conquista
  • 1979-1981 Chevrolet El Camino Royal Knight
  • 1978-1981 Chevrolet El Camino SS
  • 1978-1981 Chevrolet K10 Cheyenne
  • 1981-1984 Chevrolet K10 Custom
  • 1978-1980 Chevrolet K10 Custom Deluxe
  • 1981-1981 Chevrolet K10 Deluxe
  • 1978-1984 Chevrolet K10 Scottsdale
  • 1978-1984 Chevrolet K10 Silverado
  • 1968-1972 Chevrolet K10 Pickup Base
  • 1968-1972 Chevrolet K10 Suburban Base
  • 1978-1980 Chevrolet K10 Suburban Custom Deluxe
  • 1978-1980 Chevrolet K10 Suburban Scottsdale
  • 1979-1980 Chevrolet K10 Suburban Silverado
  • 1978-1981 Chevrolet K20 Cheyenne
  • 1981-1986 Chevrolet K20 Custom
  • 1978-1980 Chevrolet K20 Custom Deluxe
  • 1981-1981 Chevrolet K20 Deluxe
  • 1978-1986 Chevrolet K20 Scottsdale
  • 1978-1986 Chevrolet K20 Silverado
  • 1968-1972 Chevrolet K20 Pickup Base
  • 1968-1972 Chevrolet K20 Suburban Base
  • 1981-1982 Chevrolet K20 Suburban Custom
  • 1978-1980 Chevrolet K20 Suburban Custom Deluxe
  • 1981-1981 Chevrolet K20 Suburban Deluxe
  • 1978-1982 Chevrolet K20 Suburban Scottsdale
  • 1979-1982 Chevrolet K20 Suburban Silverado
  • 1978-1981 Chevrolet K30 Cheyenne
  • 1981-1986 Chevrolet K30 Custom
  • 1978-1980 Chevrolet K30 Custom Deluxe
  • 1981-1981 Chevrolet K30 Deluxe
  • 1978-1986 Chevrolet K30 Scottsdale
  • 1978-1986 Chevrolet K30 Silverado
  • 1968-1972 Chevrolet K30 Pickup Base
  • 1978-1980 Chevrolet K5 Blazer Cheyenne
  • 1981-1982 Chevrolet K5 Blazer Custom
  • 1978-1980 Chevrolet K5 Blazer Custom Deluxe
  • 1981-1981 Chevrolet K5 Blazer Deluxe
  • 1978-1982 Chevrolet K5 Blazer Silverado
  • 1987-1987 Chevrolet R20 Custom Deluxe
  • 1987-1987 Chevrolet R20 Scottsdale
  • 1987-1987 Chevrolet R20 Silverado
  • 1988-1988 Chevrolet R30 Cheyenne
  • 1987-1988 Chevrolet R30 Custom Deluxe
  • 1987-1988 Chevrolet R30 Scottsdale
  • 1987-1988 Chevrolet R30 Silverado
  • 1968-1988 Chevrolet Truck
  • 1987-1987 Chevrolet V20 Custom Deluxe
  • 1987-1987 Chevrolet V20 Scottsdale
  • 1987-1987 Chevrolet V20 Silverado
  • 1987-1988 Chevrolet V30
  • 1988-1988 Chevrolet V30 Cheyenne
  • 1988-1988 Chevrolet V30 Custom Deluxe
  • 1988-1988 Chevrolet V30 Scottsdale
  • 1988-1988 Chevrolet V30 Silverado
Chevrolet Van Applications
  • 1975-1978 Chevrolet G20 Beauville
  • 1975-1978 Chevrolet G20 Chevy Van
  • 1978-1978 Chevrolet G20 Nomad
  • 1975-1978 Chevrolet G20 Sportvan
  • 1973-1974 Chevrolet G20 Van Base
  • 1973-1974 Chevrolet G20 Van Sportvan
  • 1975-1979 Chevrolet G30 Beauville
  • 1975-1979 Chevrolet G30 Chevy Van
  • 1975-1979 Chevrolet G30 Hi-Cube
  • 1975-1978 Chevrolet G30 Sportvan
  • 1974-1974 Chevrolet G30 Van Base
  • 1978-1978 Chevrolet P10 Base
  • 1978-1978 Chevrolet P10 Step-Van
  • 1978-1978 Chevrolet P20 Base
  • 1978-1978 Chevrolet P20 Step-Van
  • 1978-1979 Chevrolet P30
  • 1978-1978 Chevrolet P30 Base
  • 1978-1978 Chevrolet P30 Step-Van
Oldsmobile Applications
  • 1981-1981 Oldsmobile 98 Luxury
  • 1981-1983 Oldsmobile 98 Regency
  • 1982-1983 Oldsmobile 98 Regency Brougham
  • 1980-1980 Oldsmobile Cutlass Base
  • 1980-1980 Oldsmobile Cutlass Brougham
  • 1977-1977 Oldsmobile Cutlass Colonnade
  • 1977-1977 Oldsmobile Cutlass Colonnade S
  • 1980-1980 Oldsmobile Cutlass LS
  • 1977-1977 Oldsmobile Cutlass S
  • 1978-1979 Oldsmobile Cutlass Vista Cruiser
  • 1979-1979 Oldsmobile Cutlass Vista Cruiser Brougham
  • 1978-1982 Oldsmobile Cutlass Calais Base
  • 1980-1982 Oldsmobile Cutlass Cruiser Base
  • 1980-1981 Oldsmobile Cutlass Cruiser Brougham
  • 1977-1987 Oldsmobile Cutlass Salon Base
  • 1978-1980 Oldsmobile Cutlass Salon Brougham
  • 1987-1987 Oldsmobile Cutlass Supreme 442
  • 1977-1987 Oldsmobile Cutlass Supreme Base
  • 1977-1987 Oldsmobile Cutlass Supreme Brougham
  • 1977-1977 Oldsmobile Cutlass Supreme Colonnade
  • 1981-1985 Oldsmobile Cutlass Supreme LS
  • 1977-1983 Oldsmobile Delta 88 Base
  • 1980-1981 Oldsmobile Delta 88 Holiday
  • 1977-1987 Oldsmobile Delta 88 Royale
  • 1980-1987 Oldsmobile Delta 88 Royale Brougham
  • 1984-1984 Oldsmobile Delta 88 Royale Brougham LS
  • 1977-1979 Oldsmobile Omega Base
  • 1977-1979 Oldsmobile Omega Brougham
  • 1978-1979 Oldsmobile Omega Brougham LS
  • 1977-1977 Oldsmobile Omega Deluxe
  • 1977-1977 Oldsmobile Omega F85
  • 1977-1978 Oldsmobile Omega SX
  • 1975-1980 Oldsmobile Starfire Base
  • 1977-1980 Oldsmobile Starfire Firenza
  • 1976-1980 Oldsmobile Starfire GT
  • 1975-1975 Oldsmobile Starfire S
  • 1976-1980 Oldsmobile Starfire SX
  • 1981-1984 Oldsmobile Toronado Brougham
Pontiac Applications
  • 1977-1987 Pontiac Bonneville Base
  • 1977-1986 Pontiac Bonneville Brougham
  • 1984-1987 Pontiac Bonneville LE
  • 1978-1980 Pontiac Bonneville Safari
  • 1976-1981 Pontiac Catalina Base
  • 1977-1980 Pontiac Catalina Safari
  • 1977-1981 Pontiac Firebird Base
  • 1977-1981 Pontiac Firebird Esprit
  • 1977-1981 Pontiac Firebird Formula
  • 1979-1981 Pontiac Firebird Trans Am
  • 1973-1980 Pontiac Grand Am Base
  • 1977-1977 Pontiac Grand Safari Base
  • 1980-1981 Pontiac Laurentian
  • 1968-1981 Pontiac LeMans Base
  • 1969-1981 Pontiac LeMans Safari
  • 1970-1977 Pontiac LeMans Sport
  • 1971-1971 Pontiac LeMans T37
  • 1980-1984 Pontiac Parisienne
  • 1984-1984 Pontiac Parisienne Base
  • 1984-1984 Pontiac Parisienne Brougham
  • 1977-1979 Pontiac Phoenix Base
  • 1978-1979 Pontiac Phoenix LJ
  • 1978-1979 Pontiac Phoenix SJ
  • 1968-1970 Pontiac Tempest Base
  • 1968-1969 Pontiac Tempest Custom
  • 1968-1968 Pontiac Tempest Safari
  • 1977-1977 Pontiac Ventura Base
  • 1977-1977 Pontiac Ventura SJ
About OER

OER® was established in the early 1980's to manufacture original equipment reproductions where every part is meticulously reproduced to exact factory specifications. All OER® parts are reverse engineered or manufactured using original blueprints when available to ensure the closest possible reproduction available on the market. When available, original factory tooling is utilized to insure complete originality. Our mission is to supply the highest quality parts available for the enthusiast and serious restorer. Whether you're a serious restorer, or just someone who wants a replacement part for your classic vehicle, OER® is the source for the finest quality parts on the market. Today, OER® is the most recognized brand in automotive restoration parts. Choose OER® for all your restoration needs.

Many OER® products are officially licensed by General Motors and the Chrysler Group ensuring the quality and authenticity of these products. The GM Restoration Parts logo and the MOPAR Authentic Restoration Product logo are the true signs of quality. OER® is licensed by GM and the Chrysler Group as an official restoration parts manufacturer.

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.
Make Model Years
Buick Century 1973 - 1985
Buick Electra 1978 - 1985
Buick Estate Wagon 1964 - 1980
Buick GS 350 1968 - 1969
Buick LeSabre 1964 - 1985
Buick Regal 1974 - 1987
Buick Riviera 1979 - 1985
Buick Skylark 1964 - 1979
Buick Special 1964 - 1969
Buick Sportwagon 1964 - 1969
Cadillac Brougham 1988 - 1990
Cadillac DeVille 1982 - 1986
Cadillac Eldorado 1981 - 1982
Cadillac Fleetwood 1982 - 1986
Cadillac Seville 1981 - 1982
Chevrolet Bel Air 1981
Chevrolet Blazer 1969 - 1988
Chevrolet C10 Pickup 1968 - 1972
Chevrolet C10 Suburban 1968 - 1986
Chevrolet C10 1978 - 1986
Chevrolet C1500 1988
Chevrolet C15 1982 - 1988
Chevrolet C20 Pickup 1968 - 1972
Chevrolet C20 Suburban 1968 - 1986
Chevrolet C20 1978 - 1987
Chevrolet C2500 1988
Chevrolet C30 Pickup 1968 - 1972
Chevrolet C30 1978 - 1986
Chevrolet C3500 1988
Chevrolet C35 1983 - 1988
Chevrolet Camaro 1980 - 1982
Chevrolet Caprice 1980 - 1984
Chevrolet El Camino 1978 - 1981
Chevrolet G20 Van 1973 - 1974
Chevrolet G20 1975 - 1978
Chevrolet G30 Van 1974
Chevrolet G30 1975 - 1979
Chevrolet Impala 1980 - 1984
Chevrolet K10 Pickup 1968 - 1972
Chevrolet K10 Suburban 1968 - 1986
Chevrolet K10 1978 - 1986
Chevrolet K1500 1988
Chevrolet K20 Pickup 1968 - 1972
Chevrolet K20 Suburban 1968 - 1986
Chevrolet K20 1978 - 1986
Chevrolet K2500 1988
Chevrolet K30 Pickup 1968 - 1972
Chevrolet K30 1978 - 1986
Chevrolet K3500 1988
Chevrolet K5 Blazer 1978 - 1986
Chevrolet Malibu 1978 - 1983
Chevrolet Monte Carlo 1978 - 1985
Chevrolet P10 1978
Chevrolet P20 1978
Chevrolet P30 1978 - 1979
Chevrolet R10 Suburban 1987 - 1988
Chevrolet R10 1987
Chevrolet R20 Suburban 1987 - 1988
Chevrolet R20 1987 - 1988
Chevrolet R30 1987 - 1988
Chevrolet S10 Blazer 1983 - 1988
Chevrolet S10 1982 - 1988
Chevrolet Suburban 1987 - 1988
Chevrolet V10 Suburban 1987 - 1988
Chevrolet V10 1987
Chevrolet V20 Suburban 1987 - 1988
Chevrolet V20 1987
Chevrolet V30 1987 - 1988
Oldsmobile 98 1981 - 1983
Oldsmobile Cutlass Calais 1978 - 1982
Oldsmobile Cutlass Cruiser 1980 - 1982
Oldsmobile Cutlass Salon 1977 - 1987
Oldsmobile Cutlass Supreme 1977 - 1987
Oldsmobile Cutlass 1977 - 1980
Oldsmobile Delta 88 1977 - 1987
Oldsmobile Omega 1977 - 1979
Oldsmobile Starfire 1975 - 1980
Oldsmobile Toronado 1981 - 1984
Pontiac Bonneville 1977 - 1987
Pontiac Catalina 1976 - 1981
Pontiac Firebird 1977 - 1981
Pontiac Grand Am 1973 - 1980
Pontiac Grand Safari 1977
Pontiac Laurentian 1980 - 1981
Pontiac LeMans 1968 - 1981
Pontiac Parisienne 1980 - 1984
Pontiac Phoenix 1977 - 1979
Pontiac Tempest 1968 - 1970
Pontiac Ventura 1977

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OER 1964-90 Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Fan Clutch, OE Style, Thermal, 7" Diameter, 3.25" Fan Bolt Spacing 1236786: