Notes: Ported Vacuum Switch. Contents: Ported Vacuum Switch. 1988 Chevrolet C1500 5.7L V8. 1990 Chevrolet C1500 4.3L V6. 1990 Chevrolet C1500 7.4L V8. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.
