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
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.
| Make | Model | Years |
| Chevrolet | Blazer | 1973 - 1974 |
| Chevrolet | C10 Pickup | 1973 - 1974 |
| Chevrolet | C10 Suburban | 1973 - 1985 |
| Chevrolet | C10 | 1975 - 1985 |
| Chevrolet | C15 | 1982 - 1985 |
| Chevrolet | C20 Pickup | 1973 - 1974 |
| Chevrolet | C20 Suburban | 1973 - 1985 |
| Chevrolet | C20 | 1975 - 1985 |
| Chevrolet | C30 Pickup | 1973 - 1974 |
| Chevrolet | C30 | 1975 - 1985 |
| Chevrolet | C35 | 1983 - 1985 |
| Chevrolet | El Camino | 1969 - 1975 |
| Chevrolet | K10 Pickup | 1973 - 1974 |
| Chevrolet | K10 Suburban | 1973 - 1985 |
| Chevrolet | K10 | 1975 - 1985 |
| Chevrolet | K20 Pickup | 1973 - 1974 |
| Chevrolet | K20 Suburban | 1973 - 1985 |
| Chevrolet | K20 | 1975 - 1985 |
| Chevrolet | K30 Pickup | 1973 - 1974 |
| Chevrolet | K30 | 1977 - 1985 |
| Chevrolet | K5 Blazer | 1975 - 1985 |
| Chevrolet | S10 Blazer | 1983 - 1985 |
| Chevrolet | S10 | 1982 - 1985 |
| GMC | C15 Suburban | 1975 - 1978 |
| GMC | C15/C1500 Pickup | 1973 - 1974 |
| GMC | C15/C1500 Suburban | 1973 - 1974 |
| GMC | C1500 Suburban | 1979 - 1985 |
| GMC | C1500 | 1979 - 1985 |
| GMC | C15 | 1975 - 1978 |
| GMC | C25 Suburban | 1975 - 1978 |
| GMC | C25/C2500 Pickup | 1973 - 1974 |
| GMC | C25/C2500 Suburban | 1973 - 1974 |
| GMC | C2500 Suburban | 1979 - 1985 |
| GMC | C2500 | 1979 - 1985 |
| GMC | C25 | 1975 - 1978 |
| GMC | C35/C3500 Pickup | 1973 - 1974 |
| GMC | C3500 | 1979 - 1985 |
| GMC | C35 | 1975 - 1978 |
| GMC | Jimmy | 1973 - 1985 |
| GMC | K15 Suburban | 1975 - 1978 |
| GMC | K15/K1500 Pickup | 1973 - 1974 |
| GMC | K15/K1500 Suburban | 1973 - 1974 |
| GMC | K1500 Suburban | 1979 - 1985 |
| GMC | K1500 | 1979 - 1985 |
| GMC | K15 | 1975 - 1978 |
| GMC | K25 Suburban | 1975 - 1978 |
| GMC | K25/K2500 Pickup | 1973 - 1974 |
| GMC | K25/K2500 Suburban | 1973 - 1974 |
| GMC | K2500 Suburban | 1979 - 1985 |
| GMC | K2500 | 1979 - 1985 |
| GMC | K25 | 1975 - 1978 |
| GMC | K35/K3500 Pickup | 1973 - 1974 |
| GMC | K3500 | 1979 - 1985 |
| GMC | K35 | 1977 - 1978 |
| GMC | S15 Jimmy | 1983 - 1985 |
| GMC | S15 | 1982 - 1985 |
| GMC | Sprint | 1973 - 1976 |
| GMC | Transmode | 1973 - 1974 |
