6BT Injector Fuel Supply Tube 3918510 Specs & Engine Fitment
The 6BT injector fuel supply tube 3918510 is a high-pressure fuel line engineered specifically for Cummins 6B series diesel engines. Manufactured to withstand extreme fuel injection pressures and persistent engine vibration, this fuel tube ensures precise fuel delivery directly from the injection pump to the fuel injector.
Technical Specifications: Cummins Fuel Line 3918510
| Specification Parameter | Details |
| Part Number | 3918510 |
| Part Name | Injector Fuel Supply Tube |
| Engine Configuration | Cummins 6B / 6BT 5.9L |
| Line Length | 770 mm |
| Inside Diameter (ID) | 1.8 mm |
| Injector Tube Nut Size | 14 mm |
| Delivery Valve Tube Nut Size | 12 mm |
| Ref No. | Part Number | Part Description | Qty Required | Remarks / Application |
| — | PP98536 | Injector Pipes | — | Injector Plumbing Group |
| 1 | 3918109 | Hexagon Flange Head Cap Screw | 3 | M8 x 1.25 x 25 |
| — | 3918513 | Injector Fuel Supply Tube | 1 | — |
| 2 | 3282942 | Tube Brace | 1 | — |
| 3 | 3903723 | Plain Washer | 2 | — |
| 4 | 3904519 | Tube Brace | 1 | — |
| 5 | 3917712 | Hexagon Head Cap Screw | 2 | M5 x 0.80 x 22 |
| 6 | 3917747 | Vibration Isolator | 2 | — |
| 7 | 3918507 | Injector Fuel Supply Tube | 1 | #1 Cylinder |
| 8 | 3918508 | Injector Fuel Supply Tube | 1 | #2 Cylinder |
| 9 | 3918509 | Injector Fuel Supply Tube | 1 | #3 Cylinder |
| — | 3922419 | Injector Fuel Supply Tube | 1 | — |
| 2 | 3282942 | Tube Brace | 1 | — |
| 3 | 3903723 | Plain Washer | 4 | — |
| 4 | 3904519 | Tube Brace | 1 | — |
| 5 | 3917712 | Hexagon Head Cap Screw | 4 | M5 x 0.80 x 22 |
| 6 | 3917747 | Vibration Isolator | 4 | — |
| 10 | 3917778 | Tube Brace | 1 | — |
| 11 | 3918510 | Injector Fuel Supply Tube | 1 | #4 Cylinder |
| 12 | 3918512 | Injector Fuel Supply Tube | 1 | #6 Cylinder |
| 13 | 3922420 | Injector Fuel Supply Tube | 1 | #5 Cylinder |
Application & System Compatibility
Part number 3918510 is designed for accurate positioning and flow dynamics on 6B engine layouts:
- Cummins Engine Series: Cummins 6B / 6BT 5.9L 6-cylinder diesel engines.
- System Function: Connects the fuel injection pump delivery valve to the fuel injector.
- Mechanic’s Note: Always verify nut sizes (14mm injector / 12mm delivery valve) during replacement. Ensure line flares are clean and properly torqued to avoid high-pressure fuel leaks and diesel misting.
Fast Verification & Global Support at YIZHI POWER
Fuel line routing can vary across different 6BT industrial, marine, and automotive applications.
Need help verifying your Cummins fuel line or overhaul parts?
- Locate your Cummins Engine Serial Number (ESN) on the engine dataplate.
- Contact YIZHI POWER.
- We will verify exact part compatibility in the official Cummins EPC catalog 100% free of charge.
Contact YIZHI POWER for genuine Cummins spares, high-pressure fuel lines, and fast worldwide delivery.
