Motorad 5270-180 Engine Coolant Thermostat

Motorad UltraStat 5270-180 Thermostat Overview

The Motorad UltraStat 5270-180 engine coolant thermostat is a 180°F replacement thermostat built for select Ford, Mazda, Mercury, Hyundai, and Toyota applications. It uses heavy-gauge stainless steel construction for corrosion resistance and long service life, with BLVT valve technology to help reduce thermal shock in the cooling system.

Compatible With 1989-2004 Ford Taurus, Escort, Contour, Focus, and Escape applications, plus select Mazda RX-7 and Tribute, Mercury Cougar and Mystique, Hyundai Scoupe and Excel, and Toyota 4Runner, Pickup, and T100 models.

Key Features

• 180°F opening temperature for OE-style engine temperature control
• Heavy-gauge stainless steel construction for durability and corrosion resistance
• BLVT valve technology to help minimize thermal shock to cooling components
• Jiggle pin weep hole included for air bleeding during service
• Sealing flange outside diameter: 2.05 in.
• Bypass diameter: 1.38 in.
• Bypass length: 1.22 in.
• Flange thickness: 0.05 in.
• No gasket or seal included

Detailed Description

Motorad UltraStat part number 5270-180 is an engine coolant thermostat designed around a 180°F temperature rating for stable warm-up and regulated coolant flow. The stainless steel construction supports long-term corrosion resistance, while the valve design is engineered to smooth coolant transition and reduce abrupt temperature changes in the cooling system. This makes the 5270-180 a practical replacement choice for drivers servicing Ford Taurus, Ford Focus, Mazda RX-7, Toyota 4Runner, and other listed applications.

This part cross-references Four Seasons 45978 for the same application.

What It Helps Address

• Engine running too cool or taking too long to reach operating temperature
• Temperature fluctuation caused by a worn thermostat
• Cooling system corrosion affecting thermostat operation
• Uneven coolant flow after thermostat service
• Air pockets during cooling system refill, aided by the jiggle pin weep hole

Installation Notes and Tips

Verify the thermostat housing style, bypass dimensions, and 180°F specification before installation. Because no gasket or seal is included, reuse is not recommended unless the original sealing component is in serviceable condition and matches the application requirements. Clean the housing mating surfaces thoroughly and bleed the cooling system according to the vehicle service procedure after installation.

Quality Assurance

UltraStat thermostats are built with stainless steel construction and a valve design focused on consistent cooling-system operation. Motorad part number 5270-180 is engineered for the listed vehicle applications and dimensional requirements.

• Fits 2001-2004 Ford Escape, N/A
• Fits 2000-2004 Ford Focus, N/A
• Fits 2001-2004 Mazda Tribute, N/A
• Fits 1998-2003 Ford Escort, N/A
• Fits 1999-2002 Mercury Cougar, N/A
• Fits 1995-2000 Ford Contour, N/A
• Fits 1995-2000 Mercury Mystique, N/A
• Fits 1989-1995 Ford Taurus, N/A
• Fits 1993-1995 Hyundai Scoupe, N/A
• Fits 1993-1995 Mazda RX-7, N/A
• Fits 1989 Mazda RX-7, N/A
• Fits 1990-1995 Toyota 4Runner, N/A
• Fits 1994 Hyundai Excel, N/A
• Fits 1990-1994 Toyota Pickup, N/A
• Fits 1993-1994 Toyota T100, N/A
• Fits 1990-1991 Mazda RX-7, N/A