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Engine Coolant Thermostat - 90C

SKU: RT1194

(4L5Z8575B)

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About This Item

About This Item

  • Stainless steel or brass bridge and spring frame is channel-constructed for strength and rigidity.
  • Tapered-end stainless steel pistons feature flexible elastomeric boots.
  • Streamlined venturi nozzle for maximum coolant flow.
  • Mounting flange is designed for an optimal fit in the engine housing.
  • Stroke-tested, heat-tested, pressure-tested and endurance-tested in real-world conditions to 10-year/150,000 miles equivalent.
Motorcraft Thermostats are designed to exacting Ford Original Equipment specifications to maintain recommended coolant temperature for optimal engine temperature and heater performance.