Stant 14139 Engine Coolant Thermostat

Reliable Engine Cooling with Stant OE Type Thermostat 14139

The Stant OE Type Thermostat 14139 is engineered to maintain optimal engine temperature for a range of Ford, Jaguar, Lincoln, Mazda, and Mercury vehicles. Designed to open at 188 degrees Fahrenheit, this engine coolant thermostat ensures efficient temperature regulation for improved engine performance.

• Bypass plate diameter: 1.36 inches
• Flange diameter (without seal): 2.125 inches
• Height from flange to bottom: 1.59 inches
• Height from flange to top of bridge: 0.7 inches
• Temperature rating: 188 degrees Fahrenheit
• Freight class: 70

About the Stant OE Type Thermostat Product Line

The OE Type Thermostat line from Stant is designed to meet original equipment specifications, providing reliable temperature control and fitment for various vehicle makes and models. This product line focuses on precise dimensions and temperature ratings to ensure compatibility and consistent engine cooling performance, as demonstrated by part number 14139.

Detailed Product Description

The Stant 14139 thermostat features a 1.36-inch bypass plate diameter and a 2.125-inch flange diameter (without seal), ensuring a proper seal and fit within the cooling system housing. The height measurements—1.59 inches from flange to bottom and 0.7 inches from flange to top of bridge—are critical for correct installation and operation. The thermostat opens at 188 degrees Fahrenheit, allowing coolant to flow through the radiator once the engine reaches optimal operating temperature, preventing overheating and promoting efficient engine function.

Compatible Vehicles and Common Applications

• Ford models including Explorer, Escape, Mustang, Taurus, and Fusion
• Jaguar S-Type and Lincoln Continental, Mark VIII, and LS
• Mazda MPV and Tribute
• Mercury Cougar, Sable, and Marauder
• Other compatible models such as Ford Edge, Flex, Milan, and Mercury Mariner

Common Issues Addressed by Stant 14139 Thermostat

• Engine overheating due to thermostat failure
• Poor engine warm-up times affecting fuel efficiency
• Inconsistent engine temperature regulation
• Coolant flow blockage or restriction
• Thermostat stuck open or closed causing engine performance issues

Installation Notes and Tips

Ensure the cooling system is fully drained before removing the old thermostat. Verify the dimensions of the replacement thermostat match the original, especially the bypass plate and flange diameters. Install the Stant 14139 thermostat with the correct orientation, and replace any gaskets or seals as needed to prevent leaks. After installation, refill the cooling system and bleed air pockets to maintain proper coolant flow.

Quality Assurance and Warranty

Stant OE Type Thermostats are manufactured to meet or exceed OEM specifications, ensuring durability and reliable performance. While specific warranty details for part number 14139 are not provided here, Stant products typically come with a limited warranty against defects in materials and workmanship.