Motorcraft RT-1144 Engine Coolant Thermostat F - 190

The Motorcraft RT-1144 Heritage Thermostat is a direct-fit engine coolant thermostat engineered for reliable temperature regulation in Ford vehicles. This precision-manufactured component opens at 190 degrees Fahrenheit (88 degrees Celsius) to maintain optimal engine operating temperature and prevent overheating.

Key Features:

• 190°F/88°C opening temperature for precise coolant flow control
• Stainless steel or brass bridge and spring frame with channel construction for superior strength and rigidity
• Streamlined venturi nozzle design maximizes coolant flow for efficient heat transfer
• Precision-engineered mounting flange ensures proper fit and seal in the thermostat housing
• Heavy-duty heat motor construction with high-strength brass housing, rulon seal, brass cover, and guide
• Stainless steel tapered-end pistons with flexible elastomeric boots for reliable operation
• Specially formulated expansive wax compound provides consistent thermal response
• Direct-fit replacement for OE part numbers XL3V8575AA and XL3Z8575AA

Built to Motorcraft's heavy-duty quality standards for extended service life, this thermostat is backed by a 12-month or 12,000-mile limited warranty. Sold individually.