For Excavator 331-6025 3316025 Piston Ring CAT C11 C13 engine parts

Specification

Description

331-6025 (3316025) Piston Ring is a dedicated seal for CAT C11/C13 engines, compatible with heavy-duty excavators. Composed of compression and oil rings, it matches original dimensions precisely, seals gas, scrapes excess oil, prevents carbon deposits, assists heat dissipation, and can directly replace old parts for high-intensity operations.

Advantage

• Original adaptation, direct assembly without adjustment
• Alloy material + nitriding treatment, wear and corrosion resistant
• Excellent sealing and oil control, low power loss
• High-temperature stability, suitable for engine high-load operation
• Cost-effective, service life 5000-12000 hours

Performance

• Gas leakage ≤0.5L/min, sealing pressure ≥10MPa
• Oil scraping efficiency ≥95%, oil consumption ≤0.5g/kWh
• Surface hardness HRC62+, wear ≤0.03mm after 1500h test
• Operating temperature: -40℃ to 350℃, stable elasticity

Notes

Before installation, clean the piston ring groove and cylinder liner inner wall to remove carbon deposits and impurities; during assembly, install the compression rings and oil rings in the order specified by the original factory, ensuring that the ends are staggered by 120° to avoid seal failure caused by aligned ends; it is recommended to use the engine oil recommended by the original factory to ensure the best sealing and wear resistance performance.

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