Please check notes in each part listing to ensure the Air Check Valve is correct for your 1987 CHEVROLET K20 SUBURBAN with a 5.0L 305 F/I engine. Special restrictions like "California only" or "with sport package" may indicate a Air Check Valve fits only certain 1987 CHEVROLET K20 SUBURBAN models.

Clicking a "More Info" link will display a picture and/or other details about that Air Check Valve in a separate window (you may need to turn off your pop-up-blocking software for this to work).

After choosing a Air Check 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 on "Find More Parts", to find more Emission parts, other CHEVROLET K20 SUBURBAN parts, or parts for a different vehicle. Please try our Interactive Catalog (click red Start button above) for faster searching. Both catalogs use the same shopping cart, so any auto parts you've already chosen for your 1987 CHEVROLET will not be lost if you switch.