Piston Ring Set Cummins 4955251 | 4955519

High-Performance Piston Ring Set for Cummins Engines

The Cummins 4955251 Piston Ring Set is a critical component for maintaining the efficiency and longevity of heavy-duty truck engines. This set is precision-engineered to provide a superior seal within the combustion chamber, ensuring maximum power output and fuel efficiency while preventing harmful blow-by.

Key Functions and Benefits

• Combustion Sealing: Maintains high compression levels necessary for optimal engine performance and reliable ignition.
• Oil Consumption Control: Regulates the oil film on cylinder walls to prevent excess oil burn-off, reducing emissions and maintenance costs.
• Thermal Management: Efficiently conducts heat from the piston to the cylinder walls, protecting internal components from thermal fatigue.
• Durable Construction: Manufactured from high-grade materials designed to withstand the extreme temperatures and pressures of heavy-duty operation.

Set Components

This comprehensive set includes specialized rings designed to work in harmony:

• 3976339 & 4932587 Compression Rings: Engineered to create a gas-tight seal and minimize leakage into the crankcase.
• 4932801 Oil Control Ring: Precisely manages lubrication to ensure smooth piston travel and reduced friction.

Specifications

• Part Number: 4955251
• Cross Reference: 4955519
• Weight: 0.235 lb
• Size: Standard
• Compatibility: Designed for various heavy-duty Cummins engine platforms.