Please check notes in each part listing to ensure the Air Check Valve is correct for your 1978 FIAT 131 with a 1.8L 1756cc 2BBL engine. Special restrictions like "California only" or "with sport package" may indicate a Air Check Valve fits only certain 1978 FIAT 131 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 FIAT 131 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 1978 FIAT will not be lost if you switch.