Product Description
The CUMMINS 4955366 OEM PISTON RING SET (STANDARD) is designed for 2007.5–2015 6.7L Cummins ISB diesel engines. This genuine Cummins piston ring set is engineered to restore proper cylinder sealing, compression, oil control, and overall engine performance during rebuild or overhaul procedures.
Use this standard-size piston ring set when rebuilding a 6.7L Cummins engine, replacing worn piston rings, or restoring factory engine specifications. Always verify fitment by engine serial number before ordering.
FEATURES
- Genuine Cummins OEM piston ring set
- Standard-size ring package for 6.7L Cummins pistons
- Helps restore factory compression and oil control
- Designed for engine rebuilds and overhauls
- Manufactured to Cummins OEM specifications
- Direct replacement service component
FITMENT
- 2007.5–2015 Ram 2500 6.7L Cummins
- 2007.5–2015 Ram 3500 6.7L Cummins
- 2007.5–2015 Ram 4500 6.7L Cummins
- 2007.5–2015 Ram 5500 6.7L Cummins
- Select Cummins ISB 6.7L industrial and commercial applications
WHAT'S INCLUDED
- 1 Cummins 4955366 OEM Standard Piston Ring Set
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 4955366
- Standard-size 6.7L Cummins piston service components
- Cylinder liner and engine overhaul components
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 4955366
- Part Type: Piston Ring Set
- Size: Standard
- Engine Compatibility: 6.7L Cummins ISB
- Fitment Years: 2007.5–2015
- Vehicle Application: Ram 2500, 3500, 4500, and 5500
- Condition: New
- Quantity: Sold as One Ring Set
FAQ
Will this part fit my truck?
This piston ring set fits the applications listed above. Always verify your engine serial number before ordering engine internal components.
Is this a standard-size piston ring set?
Yes. Cummins 4955366 is a standard-size piston ring set designed for use with standard bore 6.7L Cummins pistons.
What is included?
This listing includes one Cummins 4955366 OEM standard piston ring set.
When should piston rings be replaced?
Piston rings are commonly replaced during engine overhauls, rebuilds, or when addressing compression loss, excessive oil consumption, or cylinder wear.
Can these rings be installed on oversized pistons?
No. This ring set is designed for standard-size piston applications. Verify piston and cylinder dimensions before ordering.
Do I need any related parts?
Inspect pistons, cylinder liners, rod bearings, main bearings, gaskets, seals, and related engine components during overhaul procedures and replace worn parts as necessary.
