Cummins Piston Ring Set 3802040 – High-Efficiency Sealing for Engine Performance

The Cummins Piston Ring Set 3802040 is built to ensure optimal sealing, combustion efficiency, and oil control within high-performance diesel engines. Designed as a direct-fit component in many Cummins genuine parts assemblies, this piston ring set helps maintain proper cylinder pressure and minimizes oil leakage.

When integrated into your diesel engine, these rings support power delivery while reducing emissions and fuel loss. Moreover, because they are part of the trusted Cummins parts lineup, you can expect reliable performance and long-term durability.

📦 Specifications

• Part Number: 3802040
• Part Name: Piston Ring Set
• Material: Cast iron with coated sealing surfaces
• Configuration: Multi-ring set (compression and oil rings included)
• Condition: Brand New
• Function: Sealing and oil control
• Manufacturing Standard: OEM-spec for Cummins genuine parts
• Fitment: Suitable for various Cummins diesel engines (confirm with ESN)

✅ Key Features

• Ensures tight combustion chamber sealing
• Helps maintain compression and reduce blow-by
• Features wear-resistant coatings for extended life
• Provides excellent oil control under high-temperature operation
• Fully compatible with other Cummins parts systems

🔧 Technical Insights

Each ring in the 3802040 Piston Ring Set serves a specific role. For example, the compression rings seal the combustion chamber to retain pressure, while the oil control rings regulate lubrication and prevent excessive oil from reaching the combustion area. Thanks to precise machining and OEM-grade tolerances, this set fits seamlessly within Cummins genuine parts configurations.

Furthermore, the anti-wear coatings reduce friction, enhance heat resistance, and extend service intervals.

💡 Application Scenarios

The Cummins 3802040 Piston Ring Set is ideal for:

• 🔹 On-highway trucks requiring reliable power and fuel control
• 🔹 Construction machinery with heavy-duty diesel engines
• 🔹 Industrial generator sets using Cummins parts assemblies
• 🔹 Fleet maintenance and engine rebuilds
• 🔹 Marine and agricultural engines demanding consistent sealing

🚚 Availability

We stock the Cummins Piston Ring Set 3802040 and offer fast global shipping.
To confirm compatibility with your specific engine model, please provide your Engine Serial Number (ESN). Our team is ready to assist with selecting the right Cummins genuine parts for your system.