Dorman 615-175 Upper Intake Manifold for Select Ford/Lincoln/Mercury Models DIRECT REPLACEMENT: This Dorman upper intake manifold is specifically engineered to match the original design and performance of the original intake manifold on select Ford Crown Victoria, Ford Explorer, Ford Mustang, Lincoln Town Car, Mercury Grand Marquis and Mercury Mountaineer vehicles. COMPLETE PACKAGE: Includes thermostat, O-ring, bolts, nuts and threaded metal plug. 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. Perfect fit - designed to match all specifications of the original part for convenient, trouble-free installation