Step 1 Select which Tenneco interchange to search. Monroe Heavy Duty Walker Step 2 Enter a competitor's or OE manufacturer's part number to find. You may enter up to 40 characters (A to Z, 0 to 9 and *). Hyphens and spaces may also be used as separators, but are optional. Substitute * for any number of other, or unknown, characters. Step 3 Click the Search button to begin your search.                 Copyright© 2006 by Tenneco.   All rights reserved. DISCLAIMER Use of this information is intended for reference purposes only.   Appropriate application of Tenneco products should be determined through our current catalog.  Tenneco does not recommend, nor warrant, the use of our products on any application (vehicle) not specifically identified in our application guide (catalog).   Failure to adhere to the product application recommendations in the current Tenneco catalog may result in decreased vehicle performance and possible damage to your vehicle.  Product specifications are subject to change without notice.