Description
Product Overview
The Cummins 3903834 Twelve Point Cap Screw is a critical fastening component designed for high-stress engine environments. Manufactured to OEM standards, this bolt is specifically used in various Cummins diesel engines, including the 4BT, 6BT, ISF2.8, and ISF3.8 series. Known for its unique twelve-point head design, it provides superior torque transmission and ensures secure, vibration-resistant mounting in critical areas such as the starter motor, timing gear housing, and accessory brackets.
Built with hardened alloy steel and treated with anti-corrosion coating, the 3903834 bolt offers exceptional tensile strength, resistance to shear, and longevity even under thermal cycling and load fluctuations common in diesel engine applications.
Subheading: Key Features
| Feature | Description |
|---|---|
| Part Number | 3903834 |
| Head Type | Twelve-point cap screw |
| Material | High-strength alloy steel |
| Coating | Anti-corrosion phosphate or zinc coating |
| Thread Type | Precision metric threads |
| Compatible Engines | Cummins 4BT, 6BT, ISF2.8, ISF3.8 |
| Application Area | Starter motor, timing gear cover, engine brackets, and accessories |
Subheading: Superior Engineering and Reliability
Manufactured to Cummins’ stringent quality standards, the 3903834 bolt offers exceptional tensile strength and resistance to wear. The twelve-point design allows for better torque transfer in tight spaces, reducing slippage and ensuring a firm hold.
Subheading: Applications and Compatibility
This cap screw is widely used in commercial vehicles, construction machinery, agricultural equipment, and generator sets equipped with Cummins B-series or ISF engines. Its small-head profile makes it ideal for space-restricted installations.
Subheading: Why Choose This Bolt?
Delivers long-term vibration resistance
Made from hardened steel for enhanced durability
Corrosion-resistant finish extends service life
Direct OEM replacement for reliable fitment
Subheading: Installation Notes
Ensure torque values are followed according to Cummins specifications. Always inspect the threads and replace damaged bolts during engine maintenance or overhauls to prevent mechanical failure.
Subheading: Conclusion
The Cummins 3903834 twelve-point cap screw is a dependable choice for anyone maintaining or repairing Cummins diesel engines. With precision engineering and long-lasting performance, it helps keep your equipment running at peak efficiency.
