3937787 1969-78 Chevrolet Crankshaft Pulley, Big Block, 3 Groove, Long Water Pump, w/AC, 7-5/8" O.D.

Name: 3937787 1969-78 Chevrolet Crankshaft Pulley, Big Block, 3 Groove, Long Water Pump, w/AC, 7-5/8" O.D.
Brand: OER
SKU: 691-3937787
Price: 69.99 USD
Availability: InStock

^$69⁹⁹

Ships on 09/15/2026

Lowest Price Guarantee

OER 3937787 Features:

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.

Part TypeCrankshaft Pulley

BrandOER

Package Height4.0

Package Width10.0

Package Length12.0

Weight3.0 PG

Part CategoryReplacement Parts

Part FitmentDirect Fit

Vendor Part Number3937787

Package Qty1

Package TypeEA

No Questions

No Reviews

Some parts are not legal for use in California or other states with similar laws / regulations

3937787 1969-78 Chevrolet Crankshaft Pulley, Big Block, 3 Groove, Long Water Pump, w/AC, 7-5/8" O.D.

OER 3937787 Features:

⚠️ Warning

Motor Vehicles

Tools

Electrical Cords