Dorman 615-178 Upper Intake Manifold for Select Ford/Lincoln/Mercury Models DIRECT REPLACEMENT: This Dorman upper intake manifold is specifically engineered to match the design and performance of the original intake manifold on select Ford Crown Victoria, Ford Mustang, Ford Thunderbird, Lincoln Town Car, Mercury Grand Marquis and Mercury Cougar vehicles. COMPLETE PACKAGE: Includes intake manifold, thermostat and O-ring, gaskets and universal throttle body bracket GREATER DURABILITY: Re-engineered by Dorman with heat-resistant polymers to reduce warping and coolant leaks. REINFORCED MATERIALS: Features an aluminum coolant crossover that reduces corrosion and vibration EASIER INSTALLATION: Torque specifications AND bolt tightening sequence are provided.