Please check notes in each part listing to ensure the Diesel Glow Plug Relay is correct for your 2003 FORD EXCURSION with a 7.3L DIESEL Turbocharged engine. AIRTEX / WELLS & STANDARD MOTOR PRODUCTS are competing brands, and each brand's Diesel Glow Plug Relay may be interchangeable. Special restrictions like "California only" or "with sport package" may indicate a Diesel Glow Plug Relay fits only certain 2003 FORD EXCURSION models.
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