Product introduction
These Cummins engine piston rings are specifically designed for 5.9L, 6.7L, and 12V engines, providing high-efficiency sealing and durability, making them suitable for various industrial and commercial applications. Cummins piston rings models 4089500-10 and 4089810-10 are manufactured with high-precision processes to ensure a perfect fit with the engine block, significantly reducing oil consumption and improving power output stability. These piston rings possess excellent wear resistance and high-temperature resistance, making them suitable for harsh operating conditions and the ideal choice for Cummins engine maintenance and upgrades.
Product Images
Product Parameters
| Parameter category | Detailed Description |
| Part number | 4089500-10 |
| Material composition | 21-4N stainless steel base +Stellite F surfacing layer |
| Radial thickness | 3.0±0.05mm |
| End gap range | 0.3-0.5mm (cold state) |
| Surface treatment | Plasma molybdenum diffusion + tungsten disulfide coating |
| Operating temperature | -40℃~300℃ |
| Sealing pressure | ≥8MPa |
| Displacement matching | Compatible with engine blocks of 5.9L-15L displacement engines |
| Applicable models | K19 (Industrial/Generator Set) K38 (Construction Machinery K50 (Heavy Truck) |
Product Advantages
6.7 Cummins piston rings offer significant advantages in design and materials, with their core objective being to improve engine sealing, wear resistance, and fuel economy. By creating a micro-groove network on the piston ring surface to store oil, they achieve a self-lubricating effect, greatly enhancing wear resistance and improving the engine system's thermal conductivity.
12V Cummins piston rings utilize special coatings (such as chromium-based or plasma-sprayed coatings) and high-quality materials to enhance wear resistance, reduce friction, help extend the service life of piston rings and cylinder liners, and effectively prevent excessive oil from entering the combustion chamber (oil burning). They also ensure sufficient lubrication, helping to reduce engine oil consumption.
5.9 Cummins piston rings employ a plateau-patterned honing design. This precise process creates an ideal oil-storing surface, helping to reduce friction, prevent oil leakage, and improve piston ring break-in. Simultaneously, the use of forged steel camshafts and crankshafts, along with a high-strength cylinder block design, enhances overall rigidity and high-pressure resistance, ensuring engine reliability and a longer service life.
FAQ
Q: 1. What are the core technological advantages of the Cummins 4089500-10 piston ring assembly?
A: Its malleable cast iron material combined with plasma molybdenum infiltration treatment improves wear resistance by 2.3 times, making it suitable for the high-pressure common rail system of 5.9L/6.7L engines.
Q: 2. How does the lightweight structure of the 4089810-1 model affect engine performance?
A: Maintenance costs are reduced by 20%. Its convex arc-shaped outer ring design naturally conforms to the cylinder wall, reducing abnormal wear and making it suitable for the demanding operating conditions of 12V engines.
Q: 3. What are the durability data for the two models?
A: Both have an overhaul interval of 1.6 million kilometers. The chrome-plated trapezoidal structure of the 4089500-10 optimizes oil distribution.
Q: 4. What are the international shipping packaging requirements for Cummins piston ring assemblies?
A: Leak-proof and pressure-resistant sealed packaging is required. The outer box must be marked with "Genuine Parts" and product labels in both Chinese and English. Precision components are recommended to be stored in peelable plastic or with nitrogen purging for moisture protection, and should be accompanied by an MSDS.
Q: 5. What restrictions should be noted when exporting to Europe and the United States?
A: CE certification (EU) or EPA compliance certificate (US) is required, and the documents must match the actual goods (e.g., product name, quantity). Some countries may require a declaration of end use; avoid involving military-sensitive areas.
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