Product Description
The CUMMINS 4890833 OEM REAR MAIN CRANKSHAFT OIL SEAL is designed for 2007.5–2018 Ram trucks equipped with the 6.7L Cummins diesel engine and select 5.9L Cummins applications verified by engine serial number (ESN). This genuine Cummins seal helps prevent engine oil leaks at the rear of the crankshaft while maintaining OEM fitment, durability, and sealing performance.
Use this seal when repairing oil leaks between the engine and transmission, during clutch replacement, transmission service, engine rebuilds, or rear seal maintenance. Always verify fitment by engine serial number before ordering.
FEATURES
- Genuine Cummins OEM rear main crankshaft oil seal
- Designed to provide reliable rear crankshaft sealing
- Direct-fit replacement for applicable Cummins engines
- Helps prevent engine oil leaks at the rear of the block
- Built for long service life and dependable sealing performance
- Ideal for maintenance, repair, and engine rebuild applications
FITMENT
- 2007.5–2018 Ram 2500 6.7L Cummins
- 2007.5–2018 Ram 3500 6.7L Cummins
- 2007.5–2018 Ram 4500 6.7L Cummins
- 2007.5–2018 Ram 5500 6.7L Cummins
- Select 5.9L Cummins applications verified by engine serial number (ESN)
WHAT'S INCLUDED
- 1 Cummins 4890833 OEM Rear Main Crankshaft Oil Seal
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 4890833
- Rear Main Seal Housing Gaskets
- Cummins Oil Pan Gaskets
- Cummins Crankshaft Service Components
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 4890833
- Part Type: Rear Main Crankshaft Oil Seal
- Engine Compatibility: 6.7L Cummins, Select 5.9L Cummins Applications
- Fitment Years: 2007.5–2018
- Vehicle Application: Ram 2500, 3500, 4500, and 5500
- Condition: New OEM Cummins
- Seal Location: Rear Crankshaft
- Installation Type: Direct Replacement
FAQ
Will this seal fit my truck?
This seal fits 2007.5–2018 6.7L Cummins applications and select 5.9L engines. Always verify fitment using your engine serial number before ordering.
Is this a genuine Cummins part?
Yes. Cummins 4890833 is a genuine OEM rear main crankshaft oil seal manufactured to Cummins specifications.
What are the symptoms of a leaking rear main seal?
Common symptoms include engine oil leaking between the engine and transmission, oil spots under the vehicle, and oil contamination around the bellhousing area.
Should I replace the rear main seal during clutch or transmission service?
Yes. Because of the labor involved in accessing the seal, replacement during clutch, flywheel, or transmission service is often recommended.
Does this seal fit all 5.9L Cummins engines?
No. Some 5.9L applications use different rear seal designs. Verify fitment using your engine serial number before ordering.
Do I need any related parts?
Inspect the rear seal housing, oil pan gasket, flywheel mounting hardware, and crankshaft sealing surface during installation and replace worn components as necessary.
