Product Description
The CUMMINS 3954829 OEM THERMOSTAT HOUSING SEAL is designed for 2003–2018 5.9L and 6.7L Cummins diesel engines. This genuine Cummins seal helps create a leak-free connection between the thermostat housing and cooling system components while maintaining OEM fitment and reliability.
Use this seal when replacing the thermostat, servicing the cooling system, repairing coolant leaks, or performing preventative maintenance. Always verify fitment by engine serial number before ordering.
FEATURES
- Genuine Cummins OEM thermostat housing seal
- Direct-fit replacement cooling system sealing component
- Helps prevent coolant leaks around the thermostat housing
- Designed to meet Cummins factory specifications
- Ideal for thermostat replacement and cooling system service
FITMENT
- 2003–2007 Dodge Ram 2500/3500 5.9L Cummins
- 2007.5–2018 Ram 2500/3500 6.7L Cummins
- Select Cummins ISB industrial and commercial applications
WHAT'S INCLUDED
- 1 Cummins 3954829 OEM Thermostat Housing Seal
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 3954829
- Cummins Thermostat Assemblies
- Cummins Water Pumps
- Cummins Cooling System Gaskets and Seals
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 3954829
- Part Type: Thermostat Housing Seal
- Engine Compatibility: 5.9L Cummins, 6.7L Cummins
- Fitment Years: 2003–2018
- Vehicle Application: Dodge Ram / Ram 2500 and 3500
- Condition: New OEM Cummins
- System: Engine Cooling System
- Installation Type: Direct Replacement
FAQ
Will this part fit my truck?
This seal fits many 2003–2018 Dodge Ram and Ram trucks equipped with 5.9L or 6.7L Cummins engines. Always verify fitment by engine serial number before ordering.
Is this a genuine Cummins part?
Yes. Cummins 3954829 is a genuine OEM thermostat housing seal manufactured to Cummins specifications.
When should this seal be replaced?
This seal should be replaced whenever the thermostat housing is removed or when repairing coolant leaks in the thermostat area.
Can I reuse my old thermostat housing seal?
Reusing old cooling system seals is not recommended. Installing a new seal helps ensure a proper leak-free repair.
What are signs of a leaking thermostat housing seal?
Common symptoms include coolant seepage, coolant loss, residue around the thermostat housing, or visible leaks during engine operation.
Do I need any related parts?
Inspect the thermostat, thermostat housing, water pump, coolant hoses, and related cooling system components during service and replace worn parts as necessary.
