Please check notes in each part listing to ensure the Wiper Linkage / Transmission is correct for your 2003 GMC SIERRA 1500 with a 5.3L engine. PERFECT FIT & DORMAN are competing brands, and each brand's Wiper Linkage / Transmission may be interchangeable. Special restrictions like "California only" or "with sport package" may indicate a Wiper Linkage / Transmission fits only certain 2003 GMC SIERRA 1500 models.
Clicking a "More Info" link will display a picture and/or other details about that Wiper Linkage / Transmission in a separate window (you may need to turn off your pop-up-blocking software for this to work).
After choosing a Wiper Linkage / Transmission, 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 Wiper & Washer parts, other GMC SIERRA 1500 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 2003 GMC will not be lost if you switch.