CUMMINS 5292744 OEM 190° THERMOSTAT – 5.9L ISB (2003–2007)

Product Description

The CUMMINS 5292744 OEM 190° THERMOSTAT is designed for 2003–2007 5.9L ISB Cummins diesel engines. This genuine Cummins thermostat helps regulate engine operating temperature, maintain proper coolant flow, and support efficient engine performance under towing, daily driving, and heavy-duty operating conditions.

Use this thermostat when replacing a stuck-open, stuck-closed, leaking, or worn cooling system component. Maintaining proper engine temperature is critical for fuel efficiency, emissions performance, and long-term engine reliability. Always verify fitment by engine serial number before ordering.

FEATURES

• Genuine Cummins OEM thermostat
• 190-degree factory temperature rating
• Direct-fit replacement for 5.9L ISB Cummins engines
• Helps maintain proper engine operating temperature
• Supports cooling system efficiency and reliability
• Recommended during cooling system service and maintenance

FITMENT

• 2003–2007 Dodge Ram 2500 5.9L Cummins
• 2003–2007 Dodge Ram 3500 5.9L Cummins
• Select Cummins ISB industrial and commercial applications

WHAT'S INCLUDED

• 1 Cummins 5292744 OEM 190° Thermostat

CROSS-REFERENCE AND RELATED PRODUCTS

• Cummins 5292744
• Cummins Water Pump Assemblies
• Cummins Cooling System Gaskets and Seals
• Cummins Coolant Service Components

SPECIFICATIONS

• Manufacturer: Cummins
• Part Number: 5292744
• Part Type: Thermostat
• Temperature Rating: 190 Degrees Fahrenheit
• Engine Compatibility: 5.9L ISB Cummins
• Fitment Years: 2003–2007
• Vehicle Application: Dodge Ram 2500 and 3500
• Condition: New OEM Cummins
• Installation Type: Direct Replacement

FAQ

Will this thermostat fit my truck?

This thermostat is designed for 2003–2007 5.9L ISB Cummins applications. Always verify fitment by engine serial number before ordering.

Is this a genuine Cummins thermostat?

Yes. Cummins 5292744 is a genuine OEM thermostat manufactured to meet factory specifications.

What temperature does this thermostat open at?

This thermostat is rated at 190 degrees Fahrenheit, which is the factory operating temperature for many 5.9L ISB Cummins applications.

What are signs of a failing thermostat?

Common symptoms include overheating, slow warm-up times, fluctuating coolant temperatures, poor heater performance, and inconsistent engine operating temperatures.

Should I replace coolant when replacing the thermostat?

Fresh coolant is recommended whenever cooling system service is performed. Inspect hoses, clamps, and related cooling system components during installation.

Do I need any related parts?

Inspect the thermostat housing, gaskets, water pump, radiator hoses, and cooling system seals during service and replace worn components as needed.