As of 3/23/2021 OER continues to experience delays in shipments of up to 45 days. If you purchase this product and we do not have it in stock, your order may be delayed. Please contact us to find out available options.
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
1969-78 Chevrolet Crankshaft Pulley; Big Block; 3 Groove; Long Water Pump; w/AC; 7-5/8" O.D.
Reproduction crankshaft pulley for 1969-1975 Chevrolet models with 396/402/427/454ci engines, and 1973-1978 GM trucks with 454ci engine. This stamped steel triple groove pulley is 6-3/4" O.D. (3rd groove=7-5/8" O.D.) with GM casting number 3937787 AC in the correct location. This 3 groove pully fits long water pump engines equipped with air conditioning.
Chevrolet Applications
1969-1974 Chevrolet Bel Air
1969-1972 Chevrolet Biscayne
1969-1972 Chevrolet Brookwood
1969-1972 Chevrolet Camaro RS
1969-1972 Chevrolet Camaro SS
1969-1974 Chevrolet Caprice
1969-1973 Chevrolet Chevelle
1969-1969 Chevrolet Chevelle 300 Deluxe
1970-1972 Chevrolet Chevelle Base
1969-1972 Chevrolet Chevelle Concours
1969-1972 Chevrolet Chevelle Concours Estate
1969-1972 Chevrolet Chevelle Greenbrier
1969-1972 Chevrolet Chevelle Malibu
1969-1972 Chevrolet Chevelle Nomad
1969-1972 Chevrolet Chevelle SS
1969-1974 Chevrolet Impala
1969-1972 Chevrolet Kingswood
1973-1975 Chevrolet Laguna
1973-1975 Chevrolet Malibu
1975-1975 Chevrolet Malibu Base
1975-1975 Chevrolet Malibu Classic
1975-1975 Chevrolet Malibu Classic Estate
1969-1972 Chevrolet Nova
1969-1972 Chevrolet Townsman
Chevrolet Truck Applications
1973-1974 Chevrolet Blazer
1975-1978 Chevrolet C10
1974-1974 Chevrolet C10 Pickup
1975-1978 Chevrolet C10 Suburban
1975-1978 Chevrolet C20
1974-1974 Chevrolet C20 Pickup
1974-1978 Chevrolet C20 Suburban
1975-1978 Chevrolet C30
1974-1974 Chevrolet C30 Pickup
1969-1975 Chevrolet El Camino Base
1975-1975 Chevrolet El Camino Classic
1969-1974 Chevrolet El Camino Custom
1969-1975 Chevrolet El Camino SS
1975-1978 Chevrolet K10
1975-1978 Chevrolet K10 Suburban
1975-1978 Chevrolet K20
1974-1974 Chevrolet K20 Pickup
1974-1978 Chevrolet K20 Suburban
1977-1978 Chevrolet K30
1974-1974 Chevrolet K30 Pickup
1975-1978 Chevrolet K5 Blazer
1973-1985 Chevrolet Truck
GMC Truck Applications
1975-1978 GMC C15
1975-1978 GMC C15 Suburban
1973-1974 GMC C15/C1500 Pickup
1973-1974 GMC C15/C1500 Suburban
1975-1978 GMC C25
1975-1978 GMC C25 Suburban
1973-1974 GMC C25/C2500 Pickup
1973-1974 GMC C25/C2500 Suburban
1975-1978 GMC C35
1973-1974 GMC C35/C3500 Pickup
1973-1978 GMC Jimmy
1975-1978 GMC K15
1975-1977 GMC K15 Suburban
1973-1974 GMC K15/K1500 Pickup
1973-1974 GMC K15/K1500 Suburban
1975-1978 GMC K25
1975-1978 GMC K25 Suburban
1973-1974 GMC K25/K2500 Pickup
1973-1974 GMC K25/K2500 Suburban
1977-1978 GMC K35
1973-1974 GMC K35/K3500 Pickup
1973-1976 GMC Sprint
1973-1985 GMC Truck
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.
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