Product Description
The CUMMINS 3804899 OEM FRONT CRANKSHAFT SEAL is designed for 2003–2018 Dodge Ram and Ram trucks equipped with 5.9L and 6.7L Cummins diesel engines. This genuine Cummins front main seal helps prevent engine oil leaks at the front of the crankshaft while maintaining OEM fitment, sealing performance, and long-term reliability.
Use this part when repairing oil leaks from the front timing cover area, replacing the harmonic balancer, rebuilding an engine, or performing front engine service. Always verify fitment by engine serial number before ordering.
FEATURES
- Genuine Cummins OEM front crankshaft seal
- Direct-fit replacement for factory front main seal
- Helps prevent engine oil leaks at the crankshaft
- Designed for OEM sealing performance and durability
- Ideal during engine rebuilds and front cover service
- Manufactured to Cummins factory specifications
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 3804899 OEM Front Crankshaft Seal
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 3804899
- Front Cover Gasket Components
- Harmonic Balancer Hardware
- Front Engine Seal Service Components
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 3804899
- Part Type: Front Crankshaft Seal
- Seal Location: Front Main 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
- Installation Type: Direct Replacement
- Function: Engine Oil Sealing
FAQ
Will this seal fit my truck?
This seal fits many 2003–2018 5.9L and 6.7L Cummins applications. Always verify fitment using your engine serial number before ordering.
Is this a genuine Cummins seal?
Yes. Cummins 3804899 is a genuine OEM front crankshaft seal manufactured to Cummins specifications.
What are the signs of a leaking front crankshaft seal?
Common symptoms include oil residue around the harmonic balancer, oil leakage from the front cover area, and oil accumulation on surrounding engine components.
Should I replace the seal during a front cover repair?
Yes. Replacing the front crankshaft seal during front cover, harmonic balancer, or timing component service is recommended to help prevent future oil leaks.
Does this stop oil leaks at the front of the engine?
When properly installed on an undamaged crankshaft sealing surface, this seal is designed to restore proper oil sealing at the front of the engine.
Do I need any related parts?
Inspect the harmonic balancer, wear sleeve, front cover gasket, crankshaft sealing surface, and mounting hardware during installation and replace worn components as necessary.
