Please check notes in each part listing to ensure the Carburetor is correct for your 1984 GMC S15 PICKUP with a 2.8L 173 engine. ACDELCO & AUTOLINE are competing brands, and each brand's Carburetor may be interchangeable. Special restrictions like "California only" or "with sport package" may indicate a Carburetor fits only certain 1984 GMC S15 PICKUP models.
Clicking a "More Info" link will display a picture and/or other details about that Carburetor in a separate window (you may need to turn off your pop-up-blocking software for this to work).
After choosing a Carburetor, 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 Fuel/Air parts, other GMC S15 PICKUP 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 1984 GMC will not be lost if you switch.