Motorad 5240-192 Engine Coolant Thermostat

Motorad UltraStat 5240-192 Thermostat

Motorad UltraStat 5240-192 is an engine coolant thermostat built for OE-style temperature control at 192°F. It is a direct-fit cooling system service part for a wide range of vehicles, including Dodge Caravan, Mazda Miata, Ford Ranger, and Toyota Supra applications.

Key Features

• 192°F opening temperature for consistent engine coolant regulation
• Heavy-gauge stainless steel construction for corrosion resistance and durability
• BLVT valve technology helps reduce thermal shock to cooling system components
• Jiggle pin weep hole included for air bleeding during service
• Sealing flange outside diameter: 2.05 in
• Flange thickness: 0.05 in
• Gasket or seal not included

UltraStat Product Line

Motorad UltraStat thermostats are engineered as durable cooling system service parts with stainless steel construction and valve control designed to maintain stable coolant flow. The UltraStat line focuses on corrosion resistance and temperature consistency for everyday repair and maintenance work.

Detailed Description

This Motorad thermostat, part number 5240-192, is specified at 192°F and is built to meet OE coolant temperature requirements across many import and domestic platforms. It cross-references Stant 45869 for the same application. Common fitments include 2001-2005 Mazda Miata, 1986-1989 Ford Ranger, 1986-1992 Toyota Supra, and 1984-2000 Dodge Caravan applications. The stainless steel body and BLVT valve design support stable coolant regulation while helping limit abrupt temperature changes in the cooling system.

What It Helps Address

• Engine running too cool or too warm due to thermostat wear
• Temperature fluctuation after warm-up
• Coolant flow issues caused by a sticking thermostat
• Corrosion-related thermostat failure in the cooling system
• Air trapped in the system during thermostat service

Installation Notes and Tips

Verify the 192°F temperature rating and sealing flange dimensions before installation. Because no gasket or seal is included, reuse is not recommended if the existing seal shows wear or damage. Clean the housing mating surfaces thoroughly, confirm correct coolant level after service, and bleed air from the system using the jiggle pin orientation as required by the vehicle application. Compatible With 2015-2018 Dodge Attitude, 2014-2017 Mitsubishi Mirage, 2001-2005 Mazda Miata, and 1986-1989 Ford Ranger among many other listed applications.

Quality Assurance

Motorad UltraStat thermostats use heavy-gauge stainless steel construction and corrosion-resistant materials to support long service life in cooling system maintenance. Part number 5240-192 is built to OE-style specifications for the listed applications and temperature range.