Please check notes in each part listing to ensure the A/C Vacuum Control Valve is correct for your 1986 GMC C3500 with a 6.2L 379 DIESEL engine. Special restrictions like "California only" or "with sport package" may indicate a A/C Vacuum Control Valve fits only certain 1986 GMC C3500 models.
Clicking a "More Info" link will display a picture and/or other details about that A/C Vacuum Control Valve in a separate window (you may need to turn off your pop-up-blocking software for this to work).
After choosing a A/C Vacuum Control Valve, click the "Add Part" button. Shipping costs will be shown on the Shopping Cart page. You may use your browser's Back button or click "Find More Parts" to find more Heat & Air Conditioning parts, other GMC C3500 parts or parts for a different vehicle. Please try our Interactive Catalog (click link above) for faster searching. Both catalogs use the same shopping cart so any auto parts you've already chosen for your 1986 GMC will not be lost if you switch.
