Maintain precise engine temperature control in your 1964 1/2 Ford Mustang with our premium thermostats, engineered to deliver the exact opening temperature and flow characteristics that Ford specified for optimal performance in America's original pony car. These high-quality thermostats feature robust brass construction with precision-calibrated wax pellets that ensure consistent opening at the correct 180° or 195° temperature range, preventing both overheating and overcooling that can damage your vintage small block engine or reduce fuel efficiency. Unlike cheap aftermarket units that fail prematurely or stick in the closed position, our thermostats undergo rigorous quality testing to guarantee reliable operation through thousands of heat cycles, while the correct jiggle pin and bypass design maintains proper coolant circulation during warm-up phases. Each thermostat includes a new rubber gasket and mounting hardware for leak-free installation, and the authentic dimensions ensure perfect fitment in the original housing without modification or clearance issues. Whether you're troubleshooting cooling problems, completing routine maintenance, or rebuilding your entire cooling system, these precision thermostats provide the reliable temperature regulation that keeps your 1964 1/2 Mustang running at peak efficiency, ensuring your piece of automotive history delivers the smooth, consistent performance that made the first-generation pony car an instant American classic from the moment it debuted in Dearborn.