Please check notes in each part listing to ensure the Cooling System Tester Adapter is correct for your 2006 LINCOLN LS with a 3.9L engine. GATES & STANT are competing brands, and each brand's Cooling System Tester Adapter may be interchangeable. Special restrictions like "California only" or "with sport package" may indicate a Cooling System Tester Adapter fits only certain 2006 LINCOLN LS models.
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After choosing a Cooling System Tester Adapter, 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 LS 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 2006 LINCOLN will not be lost if you switch.