Product Description
The CUMMINS 3905707 OEM VE INJECTION PUMP FUEL RETURN LINE (OVERFLOW/DRAIN) is designed for 1989–1991 non-intercooled 5.9L Cummins diesel engines equipped with the Bosch VE rotary injection pump. This genuine Cummins fuel return line helps route excess fuel safely back through the fuel system while maintaining proper injection pump operation and reliability.
Use this part when replacing a damaged, corroded, leaking, or missing fuel return line on first-generation Cummins applications. Always verify fitment by engine serial number and part number before ordering.
FEATURES
- Genuine Cummins OEM fuel return line
- Designed for Bosch VE injection pump applications
- Direct-fit replacement overflow and drain line
- Helps maintain proper fuel return flow and injection pump operation
- Restores factory fuel system routing
- Ideal for repair, restoration, or maintenance projects
FITMENT
- 1989–1991 Dodge Ram 2500 5.9L Cummins Non-Intercooled
- 1989–1991 Dodge Ram 3500 5.9L Cummins Non-Intercooled
- Bosch VE rotary injection pump-equipped applications
WHAT'S INCLUDED
- 1 Cummins 3905707 OEM VE Injection Pump Fuel Return Line
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 3905707
- Bosch VE Injection Pump Components
- Fuel Supply and Return Line Components
- First Generation Cummins Fuel System Parts
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 3905707
- Part Type: Fuel Return Line / Overflow Line / Drain Line
- Injection Pump Compatibility: Bosch VE Rotary Pump
- Engine Compatibility: 5.9L Cummins
- Fitment Years: 1989–1991
- Vehicle Application: Dodge Ram 2500 / 3500
- Engine Type: Non-Intercooled 12-Valve
- Condition: New OEM Cummins
- Installation Type: Direct Replacement
FAQ
Will this part fit my truck?
This fuel return line fits many 1989–1991 Dodge Ram trucks equipped with the non-intercooled 5.9L Cummins engine and Bosch VE injection pump. Always verify fitment before ordering.
Is this a genuine Cummins part?
Yes. Cummins 3905707 is a genuine OEM fuel return line manufactured to Cummins specifications.
What does the fuel return line do?
The fuel return line routes excess fuel from the injection pump back into the fuel system, helping maintain proper fuel pressure and injection pump performance.
What are the symptoms of a damaged return line?
Common symptoms include fuel leaks, fuel odor, poor fuel system performance, contamination concerns, or visible corrosion and damage to the line.
Does this fit P-pump or common rail engines?
No. This line is designed specifically for 1989–1991 non-intercooled 5.9L Cummins engines equipped with the Bosch VE rotary injection pump.
Do I need any related parts?
Inspect fuel hoses, return fittings, sealing washers, injection pump connections, and surrounding fuel system components during installation and replace worn parts as necessary.
