
Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).
Engine Piston Ring Set (0.50 mm) Cummins 4955480 | 4955641, C4955480, C4955641
Restore your engine’s compression and peak performance with this premium 0.50 mm oversize piston ring set. Engineered for Cummins QSB4.5 and QSB6.7 engines, it provides exceptional wear protection and efficient heat dissipation.
Description
High-Performance Engine Piston Ring Set (0.50 mm) for Cummins Engines
The Cummins 4955480 piston ring set is a premium-grade engine component designed to restore your cylinder’s peak functionality and maintain optimal combustion chamber sealing. This 0.50 mm oversize (+0.50) ring set is meticulously engineered to withstand the high-pressure environments of heavy-duty diesel engines, ensuring long-lasting durability and reliable performance. This part is also available under the numbers: 4955641, C4955480, and C4955641.
Key Features and Benefits
- Peak Cylinder Functionality: Helps restore and maintain optimal engine compression and power output.
- Superior Wear Protection: Protects cylinders and critical engine components from premature wear and friction.
- Efficient Heat Dissipation: Directs intense heat away from the hot piston head into the cooled cylinder wall and engine block.
- Complete Kit: Offered as a complete set to ensure perfect compatibility and hassle-free installation during engine maintenance or overhaul.
Engine Compatibility and Fitment
This piston ring set is specifically designed for heavy-duty applications and is compatible with the following Cummins engine models:
- Cummins QSB 4.5
- Cummins QSB 6.7
Note: Please verify your engine specifications and dimensions (STD: 107mm, ring configuration: 3TCR x 2.5 x 3.5) before ordering to ensure correct fitment.
Cross-Reference / Interchange Part Numbers
This part replaces / is interchangeable with the following part numbers:
- 4955480
- 4955641
- C4955480
- C4955641
- 495548000
- 495564100
- CU4955480
- CU4955641
- CUM4955480
- CUM4955641


