Motorad 5461-180 Engine Coolant Thermostat

Motorad UltraStat 5461-180 Thermostat Overview

Motorad UltraStat 5461-180 is an engine coolant thermostat built for OE-specified 180°F operation. It is a direct-fit cooling system service part for a wide range of GM and Saab applications, including Chevrolet Malibu, Chevrolet Equinox, Buick Regal, and Saturn Vue models.

The UltraStat line focuses on durable construction and stable coolant control. This thermostat uses heavy-gauge stainless steel components for corrosion resistance, and its valve design is engineered to reduce thermal shock to cooling system parts during temperature changes.

Key Features

• Engine coolant thermostat with 180°F opening temperature
• Heavy-gauge stainless steel construction for long service life
• Corrosion-resistant design for cooling system durability
• Includes rubber gasket/seal for installation
• Sealing flange outside diameter: 2.12 in
• Flange thickness: 0.05 in
• No jiggle pin weep hole
• Motorad UltraStat line for OE-specified temperature control

Detailed Description

Motorad Part Number 5461-180 is an engine coolant thermostat designed to regulate coolant flow at 180°F, helping the engine reach and maintain the specified operating temperature. This matters for vehicles such as the Chevrolet Malibu, Chevrolet Equinox, and Buick Regal, where correct thermostat temperature is important for consistent warm-up and cooling system performance. The included rubber seal supports a proper housing seal during replacement.

UltraStat thermostats are built with stainless steel construction to resist corrosion in demanding cooling environments. The valve design is intended to minimize abrupt temperature changes in the cooling circuit, helping maintain steadier operation across the cooling system. This part cross-references Stant 46628 for the same application.

What This Thermostat Helps Address

• Engine running cooler or warmer than the specified temperature
• Slow warm-up after cold starts
• Temperature fluctuation caused by a worn thermostat
• Coolant flow control issues in the thermostat housing
• Cooling system service needs on GM and Saab vehicles

Installation Notes and Tips

Verify the thermostat temperature rating and housing style before installation. Clean the sealing surface thoroughly, inspect the thermostat housing for wear or corrosion, and replace the seal if the old one is damaged. This part is listed with a gasket/seal included and does not include an installation tool.

Compatible With 2000-2017 Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Saab, and Saturn applications listed in the fitment data. Body fitment examples include Fits 2011-2017 Buick Regal, N/A; Fits 2010-2017 Chevrolet Equinox, N/A; Fits 2002-2010 Saturn Vue, N/A; and Fits 2004-2014 Chevrolet Malibu, N/A. Motorad 5461-180 is also listed for Fits 2003-2011 Saab 9-3, N/A and Fits 2006-2010 Pontiac G6, N/A applications.

Quality Assurance

Motorad UltraStat thermostats are built with stainless steel construction and corrosion-resistant materials to support reliable cooling system service. The UltraStat design uses valve technology aimed at reducing thermal shock to cooling components while maintaining OE-specified temperature control.