Please check notes in each part listing to ensure the Carburetor Choke Thermostat is correct for your 1973 MERCURY MONTEREY with a 7.0L 429 engine. AUTO-TUNE & STANDARD MOTOR PRODUCTS are competing brands, and each brand's Carburetor Choke Thermostat may be interchangeable. Special restrictions like "California only" or "with sport package" may indicate a Carburetor Choke Thermostat fits only certain 1973 MERCURY MONTEREY models.

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