Motorad 2328-180 Engine Coolant Thermostat

Motorad High Flow Thermostat for Honda and Acura

Motorad High Flow 2328-180 is an engine coolant thermostat built for direct-fit cooling system service on select Honda and Acura applications. It uses OEM-quality materials, a copper case, and a wax compound that reacts quickly to coolant temperature changes for stable engine warm-up and temperature control.

Key Features

• 180°F engine coolant thermostat for OE-style temperature control
• High Flow design for demanding automotive cooling systems
• Copper case and wax compound for rapid response to coolant temperature changes
• Offset design with air relief valve
• Jiggle pin weep hole included
• OEM specifications and processes used in manufacturing
• Sealing flange outside diameter: 2.05 in
• Bypass diameter: 1.09 in; bypass length: 1.43 in
• Flange thickness: 0.05 in

Product Details

Motorad High Flow 2328-180 is an OE-style engine coolant thermostat for vehicles that call for a 180°F thermostat setting. The copper case and wax element are engineered to respond quickly as coolant temperature rises and falls, helping the cooling system maintain consistent operating temperature. The offset design, air relief valve, and jiggle pin weep hole support proper coolant flow and air management during service. This part cross-references Carlson 15188 and Four Seasons 63288 for the same application.

Fits 2022 Honda HR-V, N/A. Fits 2016-2021 Honda HR-V, N/A. Fits 2013-2015 Acura ILX, N/A. Fits 2006-2015 Honda Civic, N/A. Fits 1997-2005 Acura EL, N/A. Motorad 2328-180 is a direct replacement choice for Honda Civic and Honda HR-V cooling system maintenance when the original thermostat calls for a 180°F specification.

Common Cooling System Issues It Can Address

• Engine running cooler or warmer than the specified thermostat temperature
• Slow warm-up after cold starts
• Temperature fluctuation caused by a worn thermostat element
• Restricted coolant flow through a failing thermostat
• Air trapped in the cooling system after thermostat service

Installation Notes

Verify the original thermostat temperature rating and housing style before installation. Clean the mating surfaces thoroughly and inspect the thermostat housing, seals, and coolant condition during service. Because no gasket or seal is included, reuse is not recommended unless the existing seal is confirmed serviceable and the application calls for it. Follow the vehicle service procedure for coolant refill and air bleeding to help prevent hot spots and temperature irregularities.

Quality Assurance

Manufactured by an OE supplier using OEM-quality materials and OEM specifications, this thermostat is built to meet standard cooling system requirements for select Honda and Acura vehicles. Motorad’s High Flow line focuses on thermostat designs intended for steady coolant control in demanding engine cooling applications.