Please check notes in each part listing to ensure the Radiator Cap Adapter is correct for your 2003 MERCEDES-BENZ CLK320 with a 3.2L 3199cc [112.940] engine. Special restrictions like "California only" or "with sport package" may indicate a Radiator Cap Adapter fits only certain 2003 MERCEDES-BENZ CLK320 models.

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After choosing a Radiator Cap 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 on "Find More Parts", to find more Cooling System parts, other MERCEDES-BENZ CLK320 parts, or parts for a different vehicle. Please try our Interactive Catalog (click red Start button above) for faster searching. Both catalogs use the same shopping cart, so any auto parts you've already chosen for your 2003 MERCEDES-BENZ will not be lost if you switch.