Motorad 5242-170 Engine Coolant Thermostat

Motorad UltraStat 5242-170 Thermostat

Motorad UltraStat 5242-170 is an engine coolant thermostat built for direct-fit cooling system service in a wide range of Honda, Acura, Ford, Isuzu, and Toyota applications. It uses a 170 degree F opening temperature and stainless steel construction to support stable coolant flow and corrosion resistance.

Key Features

• 170 degree F thermostat opening temperature for OE-style cooling control
• Heavy-gauge stainless steel construction for long-term durability and corrosion resistance
• 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: 2.04 in
• Bypass diameter: 1.09 in; bypass length: 1.37 in
• Flange thickness: 0.05 in
• No gasket or seal included

UltraStat Product Line

Motorad UltraStat thermostats are positioned for demanding cooling system service where consistent temperature control and corrosion resistance matter. The UltraStat line focuses on stainless steel construction and valve design that helps manage coolant flow changes smoothly, which is useful in vehicles that rely on precise operating temperature control.

Detailed Description

Use Motorad 5242-170 when you need a 170F engine coolant thermostat for service on applications such as 2003-2005 Honda Civic, 1996-1997 Honda Accord, 1999-2001 Acura Integra, and 2013-2014 Ford Transit. This thermostat also cross-references Stant 45877 for the same application. The part number 5242-170 is a practical choice for drivers and technicians looking for a stainless steel thermostat assembly that supports consistent coolant regulation in compatible Honda Civic, Honda Accord, and Acura Integra cooling systems.

What It Helps Address

• Engine running too cool or too warm due to thermostat wear
• Delayed coolant circulation after cold starts
• Temperature fluctuation caused by a sticking thermostat
• Corrosion-related thermostat failure in the cooling system
• Air pockets during coolant service, aided by the jiggle pin weep hole

Installation Notes and Tips

Confirm the 170 degree F temperature specification before installation and verify the bypass dimensions against the original part. Because no gasket or seal is included, reuse is not recommended unless the existing sealing component is in serviceable condition and matches the application requirements. Always bleed the cooling system after installation and refill with the correct coolant mixture for the vehicle.

Quality Assurance

Motorad UltraStat thermostats use heavy-gauge stainless steel construction and BLVT valve technology to support durable, corrosion-resistant cooling system service. Part number 5242-170 is built for direct replacement use in confirmed applications across Honda, Acura, Ford, Isuzu, and Toyota models.

• Fits 2013-2014 Ford Transit, N/A
• Fits 2003-2005 Honda Civic, N/A
• Fits 1984-1991 Honda Civic, N/A
• Fits 2002 Honda Accord, N/A
• Fits 1996-1997 Honda Accord, N/A
• Fits 1990-1993 Honda Accord, N/A
• Fits 1999-2001 Acura Integra, N/A
• Fits 1990-1993 Acura Integra, N/A
• Fits 2000-2001 Honda CR-V, N/A
• Fits 1998-1999 Acura CL, N/A
• Fits 1996-1999 Isuzu Oasis, N/A
• Fits 1994-1998 Acura Integra, N/A
• Fits 1986-1989 Acura Integra, N/A
• Fits 1997 Acura CL, N/A
• Fits 1993-1996 Honda Prelude, N/A
• Fits 1988-1991 Honda CRX, N/A
• Fits 1986-1990 Acura Legend, N/A
• Fits 1985-1987 Honda Civic, N/A
• Fits 1981-1986 Toyota Pickup, N/A