Product Description
The CUMMINS 4988806 OEM INJECTOR FUEL SUPPLY TUBE (#6) is designed for 2003–2007 Dodge Ram trucks equipped with the 5.9L common rail Cummins diesel engine. This genuine Cummins fuel supply tube delivers high-pressure fuel from the common rail to cylinder number 6 injector while maintaining proper sealing and fuel system performance.
Use this part when replacing an injector, repairing a high-pressure fuel leak, or servicing the common rail fuel system. Cummins recommends replacing injector supply tubes whenever they are removed to ensure proper sealing and injector performance.
FEATURES
- Genuine Cummins OEM injector fuel supply tube
- Designed specifically for cylinder #6
- Direct-fit replacement for common rail fuel systems
- Maintains proper high-pressure fuel delivery
- Helps prevent fuel leakage at injector connections
- Recommended when replacing injectors
FITMENT
- 2003–2007 Dodge Ram 2500 5.9L Cummins Common Rail
- 2003–2007 Dodge Ram 3500 5.9L Cummins Common Rail
- 5.9L ISB Cummins equipped with Bosch common rail injection
WHAT'S INCLUDED
- 1 Cummins 4988806 OEM Injector Fuel Supply Tube (#6)
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 4988806
- Cylinder #6 Injector Components
- Common Rail Fuel Injector Hold Down Hardware
- Fuel Rail Connector Tubes for Cylinders 1–5
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 4988806
- Part Type: Injector Fuel Supply Tube
- Cylinder Position: #6
- Engine Compatibility: 5.9L Cummins Common Rail
- Fitment Years: 2003–2007
- Vehicle Application: Dodge Ram 2500 / 3500
- Condition: New OEM Cummins
- Fuel System Type: Common Rail Diesel Injection
- Installation Type: Direct Replacement
FAQ
Will this part fit my truck?
This injector supply tube fits many 2003–2007 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L common rail Cummins engine. Always verify fitment before ordering.
Is this a genuine Cummins part?
Yes. Cummins 4988806 is a genuine OEM injector fuel supply tube manufactured to factory specifications.
What cylinder does this tube fit?
This injector fuel supply tube is designed specifically for cylinder number 6.
Should injector tubes be replaced when injectors are removed?
Yes. Cummins commonly recommends replacing injector supply tubes whenever they are removed to ensure proper sealing and prevent high-pressure fuel leaks.
What are the symptoms of a leaking injector supply tube?
Symptoms may include hard starting, fuel leakage, reduced performance, rough operation, fuel odor, or diagnostic trouble codes related to fuel pressure.
Do I need any related parts?
Inspect the injector, connector tube nut, hold-down hardware, fuel return components, and related sealing surfaces during installation and replace worn parts as necessary.
