CUMMINS 5292742 OEM 180° THERMOSTAT – 5.9L ISB (1998.5–2007) | 4BT

Product Description

The CUMMINS 5292742 OEM 180° THERMOSTAT is designed for 1998.5–2007 5.9L ISB Cummins engines and select 4BT Cummins applications. This genuine Cummins thermostat helps regulate engine coolant temperature, maintain proper operating efficiency, and support reliable cooling system performance.

Use this thermostat when replacing a sticking, worn, leaking, or failed thermostat. Proper coolant temperature control is critical for engine efficiency, emissions performance, heater operation, and long-term engine durability. Always verify fitment by engine serial number before ordering.

FEATURES

• Genuine Cummins OEM thermostat
• 180-degree opening temperature rating
• Direct-fit replacement for applicable Cummins engines
• Helps maintain proper coolant temperature regulation
• Supports efficient engine operation and cooling system performance
• Recommended during cooling system maintenance or repair

FITMENT

• 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins ISB 24-Valve
• 2003–2007 Dodge Ram 2500/3500 5.9L Cummins Common Rail
• Select Cummins 4BT applications
• Select industrial, commercial, agricultural, and equipment applications using compatible Cummins engines

WHAT'S INCLUDED

• 1 Cummins 5292742 OEM 180° Thermostat

CROSS-REFERENCE AND RELATED PRODUCTS

• Cummins 5292742
• Cummins Water Pump Assemblies
• Cummins Cooling System Components
• Cummins Thermostat Housing Gaskets

SPECIFICATIONS

• Manufacturer: Cummins
• Part Number: 5292742
• Part Type: Thermostat
• Temperature Rating: 180 Degrees Fahrenheit
• Engine Compatibility: 5.9L ISB Cummins, Select 4BT Cummins
• Fitment Years: 1998.5–2007
• Vehicle Application: Dodge Ram 2500 and 3500
• Condition: New OEM Cummins
• Cooling System Component: Yes
• Installation Type: Direct Replacement

FAQ

Will this thermostat fit my truck?

This thermostat fits many 1998.5–2007 5.9L ISB Cummins applications and select 4BT engines. Always verify fitment by engine serial number before ordering.

What temperature is this thermostat rated for?

The Cummins 5292742 thermostat is rated at 180 degrees Fahrenheit and is designed to maintain proper engine operating temperature.

Is this a genuine Cummins thermostat?

Yes. Cummins 5292742 is a genuine OEM Cummins thermostat designed to meet factory cooling system specifications.

What are the symptoms of a failing thermostat?

Common signs include overheating, slow warm-up times, inconsistent engine temperature, poor heater performance, and coolant temperature fluctuations.

Should I replace the thermostat gasket during installation?

Yes. It is recommended to inspect and replace any thermostat housing gaskets or seals during installation to help prevent coolant leaks.

Do I need any related parts?

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