Please check notes in each part listing to ensure the Idler Pulley is correct for your 2003 CHEVROLET SILVERADO 2500 with a 5.3L 323 FLEX engine. Special restrictions like "California only" or "with sport package" may indicate a Idler Pulley fits only certain 2003 CHEVROLET SILVERADO 2500 models.

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After choosing a Idler Pulley, 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 Belt Drive parts, other CHEVROLET SILVERADO 2500 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 2003 CHEVROLET will not be lost if you switch.