Please check notes in each part listing to ensure the Thermostat Seal is correct for your 2004 LINCOLN AVIATOR with a 4.6L engine. MOTORAD, STANT, & GATES are competing brands, and each brand's Thermostat Seal may be interchangeable. Special restrictions like "California only" or "with sport package" may indicate a Thermostat Seal fits only certain 2004 LINCOLN AVIATOR models.
Clicking a "More Info" link will display a picture and/or other details about that Thermostat Seal in a separate window (you may need to turn off your pop-up-blocking software for this to work).
After choosing a Thermostat Seal, 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 Cooling System parts, other LINCOLN AVIATOR 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 2004 LINCOLN will not be lost if you switch.
