Product Description
The CUMMINS 4327029 OEM THERMO SWITCH / TEMPERATURE SWITCH is designed for 1989–1993 Dodge Ram trucks equipped with the 5.9L 12-valve Cummins diesel engine. This genuine Cummins switch helps monitor coolant temperature and provides reliable operation of temperature-controlled electrical systems.
Use this part when replacing a failed temperature switch, repairing cooling system electrical circuits, or restoring proper operation of factory temperature-controlled components. Always verify fitment by year, make, model, engine, and part number before ordering.
FEATURES
- Genuine Cummins OEM thermo switch
- Direct-fit replacement temperature switch
- Designed for 1989–1993 5.9L 12-valve Cummins applications
- Helps maintain proper temperature-based electrical operation
- Supports reliable cooling system performance
- Built to Cummins OEM specifications
FITMENT
- 1989–1993 Dodge Ram 2500 5.9L 12V Cummins
- 1989–1993 Dodge Ram 3500 5.9L 12V Cummins
- Select Cummins 5.9L industrial applications where applicable
WHAT'S INCLUDED
- 1 Cummins 4327029 OEM Thermo Switch / Temperature Switch
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 4327029
- Coolant temperature sensors
- Cooling system service components
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 4327029
- Part Type: Thermo Switch / Temperature Switch
- Engine Compatibility: 5.9L 12V Cummins
- Fitment Years: 1989–1993
- Vehicle Application: Dodge Ram 2500 / 3500
- Condition: New
- Quantity: Sold Individually
FAQ
Will this part fit my truck?
This switch is designed for 1989–1993 Dodge Ram trucks equipped with the 5.9L 12-valve Cummins engine. Always verify fitment before ordering.
Is this a direct replacement?
Yes. Cummins 4327029 is a genuine OEM direct-fit replacement thermo switch.
What is included?
This listing includes one Cummins 4327029 OEM thermo switch / temperature switch.
What does the thermo switch do?
The thermo switch responds to coolant temperature changes and helps control temperature-dependent electrical functions within the cooling system.
What are common signs of a failing thermo switch?
Symptoms may include improper operation of temperature-controlled components, cooling system irregularities, or intermittent electrical issues related to coolant temperature.
Do I need any related parts?
Inspect coolant temperature sensors, wiring connectors, cooling system components, and related electrical circuits during installation and replace worn parts as necessary.
