Motorad 426-180 Engine Coolant Thermostat

Engine Cooling Control for Ram Trucks

The Motorad Standard 426-180 engine coolant thermostat is built for precise temperature control in demanding cooling systems. It uses OEM-quality materials, a copper case, and a wax compound for quick reaction to coolant temperature changes, making it a direct-fit choice for Ram 2500, Ram 3500, Ram 4000, and Dodge Ram 2500/3500 applications.

Motorad Standard line parts are produced to OE specifications and processes, with the goal of matching factory-style fit and thermal performance for everyday service and repair work.

Key Features

• 180°F start-to-open temperature for standard cooling system operation
• OEM-quality materials and OE supplier manufacturing standards
• Copper case and wax compound for responsive temperature regulation
• Includes gasket or seal for installation
• Jiggle pin weep hole helps with air bleeding during service
• O-ring seal type for a secure sealing interface
• Motorad 426-180 thermostat for select Ram and Dodge truck applications

Detailed Description

This engine coolant thermostat is designed to regulate coolant flow at the specified 180°F opening point, helping the engine reach and maintain proper operating temperature. The copper case construction and wax-element design support consistent response to coolant temperature changes, while the included O-ring seal and jiggle pin weep hole support a clean, service-ready installation. The Motorad 426-180 is a practical replacement for drivers searching for a thermostat for 1998-2010 Dodge Ram 2500, 1998-2010 Dodge Ram 3500, 2011-2020 Ram 2500, 2011-2020 Ram 3500, 2011-2013 Ram 4000, and 2021-2023 Ram 2500 or Ram 3500.

This part cross-references Bosch 15747 and Stant 14288 for the same application.

What It Helps Address

• Engine running too cool or taking too long to warm up
• Temperature swings caused by a worn thermostat
• Coolant flow control issues in the thermostat housing circuit
• Service replacement needs on Ram and Dodge truck cooling systems
• Seal leakage at the thermostat mounting interface

Installation Notes and Tips

Verify the 180°F temperature specification before installation and confirm the sealing flange dimensions match the housing. Clean the mating surfaces thoroughly, inspect the thermostat housing for corrosion or damage, and replace the seal if the application calls for a fresh sealing surface. The jiggle pin weep hole should be oriented to help trapped air escape during filling and bleeding.

Quality Assurance

Motorad manufactures this thermostat using OEM specifications and processes as an OE supplier, with materials selected to meet automotive cooling system demands. The Standard line focuses on factory-style replacement performance for routine cooling system service.