Cummins Hexagon Flange Head Cap Screw C3903990, DCEC – Strong Fastening for Engine Assemblies
The Cummins Hexagon Flange Head Cap Screw C3903990, manufactured by DCEC, is a genuine fastener designed to secure engine components with reliability and precision. Its flange head spreads the clamping force evenly, reducing the risk of loosening under vibration or thermal expansion. Because it is a Cummins genuine part, it ensures precise fit, long-lasting strength, and dependable performance. Though small, this screw plays a key role in maintaining engine stability.
🔩 Specifications
- Part number: C3903990
- Genuine Cummins hexagon flange head cap screw
- Produced by DCEC
- Made from high-strength, heat- and corrosion-resistant steel
- Built to OEM standards for clamping force and durability
⭐ Key Features
- Provides secure fastening for critical engine parts
- Flange head distributes load evenly to protect components
- Resists loosening from vibration and high temperatures
- OEM-precision fit for easy installation
- Long-lasting performance in harsh engine conditions
⚙️ Technical Insights
The C3903990 screw maintains stable connections between engine assemblies. Since the flange spreads the load, it minimizes stress and prevents part movement. As a result, the engine remains aligned and runs smoothly. In addition, the steel construction resists fatigue, corrosion, and repeated torque cycles. Furthermore, using Cummins genuine parts from DCEC guarantees consistent quality and reduces the risk of failure associated with aftermarket alternatives.
🛠 Application Scenarios
This DCEC flange head cap screw is widely used in Cummins diesel engines for trucks, buses, construction machinery, and marine equipment. Moreover, it is suitable for both preventive maintenance and full engine rebuilds. Whether your machine operates on highways, job sites, or offshore, the C3903990 screw provides strong, dependable fastening for critical components.
📦 Availability
The Cummins Hexagon Flange Head Cap Screw C3903990, DCEC is in stock and ready for global shipping. To ensure correct fitment with your Cummins parts configuration, please provide your engine serial number (ESN). Our support team will verify compatibility and arrange fast, secure delivery of Cummins genuine parts, including DCEC parts
