Motorad 242-180 Engine Coolant Thermostat

Engine Coolant Thermostat for OE-Style Cooling Control

The Motorad Standard 242-180 is a 180-degree engine coolant thermostat built for OE-style temperature control in demanding cooling systems. It uses OEM-quality materials and manufacturing processes, with a copper case and wax compound for quick response to coolant temperature changes.

Compatible With 1981-2014 Toyota Pickup, 1984-1991 Honda Civic, 1990-2002 Honda Accord, and other listed applications, this thermostat is a direct-fit cooling service part for vehicles that require a standard 180F thermostat. The Motorad 242-180 also includes an offset design, air relief valve, and OEM-style seals where applicable.

Key Features

• Standard engine coolant thermostat with 180°F opening temperature
• OE supplier manufacturing with OEM-quality materials and processes
• Copper case and wax compound for rapid temperature response
• Jiggle pin weep hole for air relief during cooling system service
• Offset design for application-specific fitment
• Bypass dimensions: 1.09 in bypass diameter and 1.37 in bypass length
• Sealing flange outside diameter: 2.04 in; flange thickness: 0.05 in
• Height: 2.15 in; height between flanges: 1.51 in

Detailed Description

The Motorad Standard line focuses on OE-style replacement thermostats for everyday repair and maintenance work. Part number 242-180 is engineered to open at 180 degrees Fahrenheit, helping regulate coolant flow so the engine reaches and maintains its intended operating temperature. Its copper case and wax element are selected for responsive movement as coolant temperature changes, while the jiggle pin weep hole helps purge trapped air during installation and refill.

This thermostat is listed for applications including Honda Civic, Honda Accord, Acura Integra, Honda CR-V, Honda Prelude, Honda CRX, Ford Transit, and Toyota Pickup. This part cross-references Hayden 105 and Stant 48158 for the same application. Use 242-180 when servicing a cooling system that calls for a standard 180F thermostat and OE-style sealing geometry.

Common Problems This Part Can Address

• Engine running cooler or warmer than specified due to thermostat wear
• Delayed coolant circulation after startup
• Temperature fluctuation caused by a sticking thermostat
• Cooling system air pockets after thermostat service
• Loss of stable operating temperature in daily driving

Installation Notes and Tips

Verify the required opening temperature, bypass dimensions, and flange measurements before installation. Clean the housing sealing surfaces thoroughly and inspect the cooling system for contamination or corrosion that could affect thermostat movement. Because no gasket or seal is included, reuse only serviceable OEM-style sealing components or install the correct replacement seal for the application. Follow the vehicle service procedure for coolant refill and air bleeding to help the jiggle pin weep hole do its job.

Quality Assurance

Motorad manufactures this thermostat to OEM specifications and processes as an OE supplier, using materials selected for consistent cooling-system performance. The 242-180 is built to meet the demands of standard automotive cooling applications while maintaining OE-style fit and temperature control.