Cummins O Ring Plug 3038903 – Leak-Resistant Sealing for Diesel Engines
The Cummins O Ring Plug 3038903 is a high-integrity sealing component used to block off fluid passages while maintaining a reliable seal. Designed for various Cummins parts and CCEC parts engine configurations, this plug combines precision machining with integrated sealing performance, making it ideal for use in pressurized oil and coolant systems.
🔩 Specifications
- Part Number: 3038903
- Part Name: O Ring Plug
- Material: Heat-treated steel body with elastomeric O-ring seal
- Finish: Corrosion-resistant coating
- Condition: 100% Brand New
- Category: Engine Sealing Components
- Origin: Manufactured to Cummins OEM specifications
- Compatibility: Fits selected Cummins and CCEC engines (confirm with ESN)
⭐ Key Features
- Integrated O-ring for tight, leak-free sealing under pressure
- Durable steel construction resists vibration and temperature cycling
- Machined to exact OEM dimensions for proper thread and bore engagement
- Corrosion-resistant finish ensures long service life
- Seamlessly fits into Cummins genuine parts and CCEC parts systems
⚙️ Technical Insights
- Sealing Performance: Engineered for consistent compression of the O-ring to prevent leaks under thermal expansion
- Pressure Tolerance: Suitable for sealing oil, fuel, or coolant passages in high-pressure environments
- Thread Engagement: Precisely cut threads maintain torque retention without overloading sealing surfaces
- Service-Friendly: Ideal for engine rebuilds and component replacements using certified Cummins parts
🛠 Application Scenarios
The Cummins 3038903 O Ring Plug is typically used in:
- Diesel engine oil galleries and coolant passages
- Cylinder block sealing points in both mobile and stationary Cummins engines
- Power generation units using CCEC parts
- Marine and construction equipment requiring high-integrity fluid seals
- Preventive maintenance tasks in engines built with Cummins genuine parts
📦 Availability
This part is in stock and available for global delivery.
To ensure correct application, please provide your engine serial number (ESN). Our technical support team is ready to assist with installation details and part verification.
