Motorad 7309-180 Engine Coolant Thermostat

Motorad Fail-Safe Thermostat for Ram Cooling Systems

The Motorad Fail-Safe 7309-180 engine coolant thermostat is built for demanding cooling systems and set to open at 180 degrees F. It uses OEM-quality materials, a copper case, and a wax compound for quick reaction to coolant temperature changes, helping maintain stable engine temperature in Dodge Ram 2500 and Ram 3500 applications.

The Fail-Safe product line is engineered to provide a protective thermostat design for overheating situations, giving Ram owners a direct-fit cooling system service part for 1994-1998 trucks.

Key Features

• 180 degree F thermostat opening temperature
• OEM specification manufacturing and OE supplier quality standards
• Copper case and wax compound for responsive temperature control
• Offset design with air relief valve where applicable
• OEM-style seals included where applicable
• Sealing flange outside diameter: 2.5 in
• Bypass diameter: 1.09 in
• Bypass length: 1.30 in
• Flange thickness: 0.05 in
• Motorad part number 7309-180

Detailed Description

Motorad 7309-180 is an engine coolant thermostat designed for 1994-1998 Dodge Ram 2500 and 1994-1998 Dodge Ram 3500 models. The Fail-Safe design is built to allow continuous coolant flow in overheating conditions, while the copper case and wax compound support fast, accurate temperature response in the cooling circuit. This makes it a practical replacement for Ram trucks that need consistent thermostat control under load.

This part cross-references Dayco 73098 for the same application. Motorad 7309-180 is a fitment-based replacement for Dodge Ram cooling service where a 180F thermostat is specified.

What It Helps Address

• Engine running hotter than normal
• Slow warm-up or unstable operating temperature
• Thermostat sticking open or closed
• Coolant flow control issues in the radiator circuit
• Overheating-related drivability concerns in Ram 2500 and Ram 3500 trucks

Installation Notes and Tips

Verify the thermostat temperature rating and housing dimensions before installation. Clean the sealing surfaces thoroughly and inspect the housing, coolant passages, and bypass area for corrosion or debris. Because a gasket or seal is not included, use the correct sealing component for the application where required. Confirm the air relief orientation and offset design match the original setup on the vehicle.

Quality Assurance

Manufactured to OEM specifications and processes by an OE supplier using OEM-quality materials and safety standards. The Fail-Safe design is intended for demanding automotive cooling systems and is built to respond quickly to coolant temperature changes.