No matter the condition of your 2003 Escalade EXT, OPGI has the Cooling & Heating products you need to boost performance and get you back on the road. We currently carry 41 Cooling & Heating items to choose from for your 2003 Escalade EXT, and our Price Match Guaranteed prices range from as little as $5.99 up to $594.99. OPGI offers Old Air Products plus eight other trusted brands of Cooling & Heating products for your 2003 Escalade EXT, to help you find quality parts you can rely on. With OPGI's 45-day return policy and eleven customer reviews, you can shop with the utmost confidence. Enjoy parts delivered directly to your home, or visit our sunny Southern California Showroom & Warehouse to check out our Cooling & Heating items in person.