Cummins Expansion Plug C3905401, DCEC – Reliable Sealing for Engine Blocks
The Cummins Expansion Plug C3905401, produced by DCEC, is a genuine sealing component designed to close machined holes in the engine block and cylinder head. It prevents coolant or oil leakage, ensuring stable pressure and reliable engine operation. As an OEM Cummins part, it delivers durability, exact fit, and long-term performance.
🔩 Specifications
- Part Number: C3905401
- Component: Expansion Plug
- Manufacturer: DCEC
- Genuine Cummins part, built to OEM standards
- High-strength metal construction for leak-proof sealing
⭐ Key Features
- Provides a secure, leak-free seal for engine block passages
- Withstands heat, pressure, and vibration
- Corrosion-resistant material for long service life
- Precision-engineered for easy installation
- Maintains proper cooling and lubrication system integrity
⚙️ Technical Insights
Expansion plugs play a critical role in sealing casting holes in engine blocks. The C3905401 prevents coolant or oil from escaping under pressure, thereby protecting the engine from overheating or fluid loss. Thanks to its robust design, this plug resists corrosion, thermal stress, and mechanical vibration. Moreover, using genuine Cummins DCEC components reduces downtime and avoids premature failure compared to non-genuine alternatives.
🛠 Application Scenarios
The Cummins Expansion Plug C3905401 is widely applied in Cummins engines for trucks, buses, construction machinery, power generation, and marine equipment. Whether during an overhaul, preventive maintenance, or emergency repair, this plug ensures your engine’s fluid system stays sealed and efficient.
📦 Availability
The Cummins Expansion Plug C3905401, DCEC is in stock and available for global shipping. To confirm proper fit for your Cummins engine, please provide your engine serial number (ESN). Our team will verify compatibility and arrange fast delivery of genuine Cummins and DCEC parts.
