Fuel Injection Pressure Regulator. Lists of compatible vehicles. 2003 Cadillac Escalade ESV. 2003 Chevrolet Express 1500. 2003 GMC Envoy XL. 2003 GMC Savana 1500. Some orders containing multiple parts may be delivered in more than one package, in this case you will receive multiple tracking numbers. We aim to provide our customers with the best service, and highest quality products possible. If you are unsure about the fitment of any of our products, please reach out us with your vehicles MAKE, MODEL, and YEAR and we will be happy to confirm fitment. See further details below. Related Parts for Your Vehicle. ACDelco Wheel Bearing and Hub Assembly 19383950. ACDelco Wheel Bearing and Hub Assembly 19259798. ACDelco Differential Pinion Bearing 23243839. ACDelco Wheel Bearing 19312485. ACDelco Differential Bearing 25824250. ACDelco Differential Bearing 26046759. ACDelco Drive Axle Shaft Bearing 26053326. ACDelco Drive Axle Shaft Seal 12471686. ACDelco Differential Carrier Bearing 19360601. We have more than a million products in our catalog, so you’ll always find the right fit for any vehicle. We offer parts for the latest cars as well as “hard-to-find” parts for classic and collector cars. We are constantly expanding our catalog and welcome feedback on what you would like to see next! We put our customers’ satisfaction first, and we’re ready to help you with any order you may need, whether with single part replacements or unique part kits. If you don’t see the part or kit you need, just send us a message here and our support team will be ready to help you 24/7.