Cummins Piston Ring Set 4955976 – Engine Compression and Oil Control Rings
The Cummins Piston Ring Set 4955976 plays a key role in sealing the combustion chamber, managing oil use, and keeping compression levels stable in Cummins diesel engines. Made to Cummins genuine parts standards, this ring set is essential for restoring full engine performance during rebuilds or service.
As part of our trusted CCEC parts selection, this set includes both compression and oil control rings. These rings are precisely matched to reduce friction, improve sealing, and withstand the heat and pressure of daily engine use.
🔩 Specifications
- Part Number: 4955976
- Part Name: Piston Ring Set
- Material: Cast iron with protective wear-resistant coating
- Configuration: Multi-piece (compression rings + oil ring)
- Application: For 6-cylinder Cummins diesel engines (verify with ESN)
- Category: Internal Engine Components
- Condition: 100% Brand New
- Standard: Meets Cummins OEM requirements (Cummins parts / CCEC parts)
⭐ Key Features
- Engineered ring tension helps maintain strong compression
- Special coating adds resistance to wear and scuffing
- Reduces blow-by while improving oil control
- Easy direct replacement during engine repair
- Works with all Cummins genuine parts and CCEC parts engine builds
⚙️ Technical Insights
- Ring Geometry: Barrel-faced compression rings improve sealing and better follow cylinder wall shape
- Oil Control Design: Three-piece oil ring enhances oil scraping and return, cutting down on oil loss
- Thermal Stability: Materials stay strong under heat, so the rings keep performing in high-temp conditions
- Precision Fit: Tight tolerances ensure the rings match piston grooves exactly, reducing oil burn and boosting efficiency
🛠 Application Scenarios
The 4955976 piston ring set is widely used in:
- Medium and heavy-duty trucks and buses
- Diesel engines in generators, water pumps, and other equipment
- Marine engines that require clean burning and oil control
- Construction machines like loaders, cranes, and bulldozers
- Engine rebuilds that rely on certified Cummins genuine parts and CCEC parts
📦 Availability
The Cummins Piston Ring Set 4955976 is in stock and available for immediate shipping worldwide.
To ensure a perfect fit, please provide your engine serial number (ESN) before purchase.
We also supply a full range of Cummins parts and CCEC parts to support complete engine overhauls and routine service needs.
