Motorad 5207-192 Engine Coolant Thermostat

Motorad UltraStat 192F Thermostat

Motorad UltraStat part number 5207-192 is an engine coolant thermostat built for precise temperature control in older Ford, Mercury, and Mazda applications. It uses heavy-gauge stainless steel construction for corrosion resistance and long service life, with a 192 degree Fahrenheit opening temperature and an included rubber seal for a direct replacement service.

UltraStat Product Line Details

The UltraStat line focuses on durable thermostat construction and stable coolant flow control. Motorad’s BLVT valve technology is used to reduce thermal shock in the cooling system by moderating coolant flow changes as the engine reaches operating temperature.

Key Features

• 192 degree Fahrenheit thermostat opening temperature
• Heavy-gauge stainless steel construction for corrosion resistance
• Rubber gasket/seal included for installation
• Sealing flange outside diameter: 1.5 in.
• Flange thickness: 0.068 in.
• No jiggle pin weep hole
• Motorad UltraStat design with BLVT valve technology

Detailed Description

This Motorad 5207-192 engine coolant thermostat is specified for vehicles that require a 192F thermostat and seal. It is a practical replacement for cooling system service on applications such as Ford Ranger, Ford Escort, Ford Mustang, Mercury Tracer, and Mazda B2300, where stable coolant regulation is important for consistent engine temperature. The stainless steel construction and corrosion-resistant design support long-term use in demanding cooling environments.

This part cross-references Stant 45829 for the same application.

What It Helps Address

• Engine running too cool because the thermostat opens at the wrong temperature
• Temperature fluctuation caused by a worn or sticking thermostat
• Coolant seepage at the thermostat housing seal area
• Corrosion-related thermostat failure in the cooling system
• Delayed warm-up from a thermostat that no longer regulates flow correctly

Installation Notes and Tips

Verify the engine calls for a 192F thermostat before installation. Replace the thermostat with the included rubber seal and clean the housing sealing surface before assembly. Confirm flange dimensions and housing fitment during service, and refill and bleed the cooling system according to the vehicle manufacturer procedure after installation.

Quality Assurance

Motorad UltraStat thermostats are built with stainless steel construction and BLVT valve technology to support consistent coolant control and corrosion resistance. Confirm fitment by year, make, and model before ordering.