Stant 49238 Engine Coolant Thermostat

OE Type Thermostat for Ford and Lincoln

Stant 49238 is an OE Type Thermostat built for precise engine coolant temperature control in select Ford and Lincoln applications. It is set to open at 190 degrees Fahrenheit and uses an original equipment design with a stainless steel assembly for smooth operation and durable service.

Compatible With 2011-2019 Ford F-150, 2015-2019 Ford Expedition, 2015-2019 Lincoln Navigator, and other listed Ford Transit and Mustang applications, this thermostat is a direct-fit cooling system service part for vehicles that require OE-style temperature control. The Stant OE Type Thermostat line focuses on factory-style fit and function for common cooling system repairs.

Key Features

• Part number 49238
• 190 degrees Fahrenheit opening temperature
• OE Type Thermostat design for factory-style replacement
• Durable material construction for long service life
• Stainless steel assembly engineered for smooth performance
• Bypass plate diameter: 1.35 in.
• Flange diameter without seal: 2.4 in.
• Height from flange to bottom: 1.62 in.
• Height from flange to top of bridge: 0.74 in.

Product Details

Stant 49238 is designed for drivers and technicians replacing a thermostat in Ford and Lincoln cooling systems that call for a 190-degree unit. The OE Type Thermostat construction supports consistent coolant flow regulation, helping the engine reach and maintain its intended operating temperature. This part number 49238 is listed for applications including Ford F-150, Ford Mustang, Ford Expedition, Ford Transit-150, Ford Transit-250, Ford Transit-350, Ford Transit-350 HD, Lincoln Navigator, Lincoln MKZ, Ford C-Max, and Ford Fusion, with notes that vary by model year and housing configuration.

This part cross-references OE replacement application 48349 for the same vehicle coverage.

What It Helps Address

• Engine running too cool or too warm due to thermostat wear
• Delayed warm-up after cold starts
• Temperature fluctuation from a sticking thermostat
• Cooling system service on Ford F-150 and Mustang models
• Replacement needs on Expedition, Navigator, and Transit applications

Installation Notes and Tips

Verify the vehicle’s thermostat temperature requirement and housing configuration before installation. Some listed applications note use without housing or exclude housing, so match the part to the exact engine setup. Confirm the flange and bypass dimensions against the original thermostat during service, and inspect the cooling system for contamination, gasket condition, and proper coolant level before returning the vehicle to service.

Quality Assurance

Stant builds this OE Type Thermostat with an original equipment design and stainless steel assembly to support consistent operation in daily-use cooling systems. The durable construction is intended for long-lasting service in the specified Ford and Lincoln applications.