Product Description
The CUMMINS 3942592 OEM FUEL DRAIN TUBE / FUEL RETURN LINE is a genuine Cummins replacement fuel return-to-tank line designed for 1998.5-2002 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L 24V Cummins VP44 diesel engine. This formed steel line routes fuel from the return tee fitting to the quick-connect fitting at the fuel return system.
Built to exact OEM specifications, the Cummins 3942592 fuel drain tube restores proper fuel return flow while maintaining factory routing and leak-free sealing. This direct-fit replacement eliminates the need for bending or modifying universal fuel lines and is ideal for repairing corroded, leaking, or damaged return plumbing.
The line includes the original-style grommet and retaining nut for simplified installation and dependable sealing performance.
FEATURES
- Genuine Cummins OEM fuel return line
- Designed for 1998.5-2002 5.9L 24V Cummins VP44 applications
- Routes fuel from return tee fitting to tank quick-connect
- Direct-fit formed steel line
- No cutting, bending, or modifications required
- Helps restore proper fuel return flow
- Includes OE-style grommet and retaining nut
- Ideal for fuel system repairs and restoration projects
FITMENT
- 1998.5-2002 Dodge Ram 2500 5.9L Cummins 24V
- 1998.5-2002 Dodge Ram 3500 5.9L Cummins 24V
- Fits VP44-equipped Cummins applications only
Fitment Note: This line connects from the fuel return tee fitting to the return-to-tank quick-connect fitting on VP44 fuel systems.
WHAT'S INCLUDED
- 1 Cummins 3942592 OEM fuel drain tube / fuel return line
- OE-style grommet
- Retaining nut
CROSS-REFERENCE & RELATED PRODUCTS
- CUMMINS 3942966 OEM FUEL RETURN LINE TUBE
- CUMMINS 3905353 OEM FUEL RETURN LINE TEE FITTING
- CUMMINS 3945707 OEM FUEL RETURN LINE FROM VP44
- AIRDOG II-4G LIFT PUMP FOR VP44 CUMMINS
- CUMMINS OEM ENGINE PARTS
WHY REPLACE THE FUEL RETURN LINE?
A damaged or corroded fuel return line can cause leaks, improper fuel return flow, air intrusion, and fuel system reliability issues. Replacing worn factory return plumbing with genuine Cummins components helps restore proper fuel routing and maintain long-term fuel system durability on VP44-equipped Cummins engines.
SPECIFICATIONS
| Specification | Details |
|---|---|
| Manufacturer | Cummins |
| Part Number | 3942592 |
| Application | Fuel drain tube / return-to-tank line |
| Engine Compatibility | 5.9L Cummins 24V VP44 |
| Fitment Years | 1998.5-2002 |
| Material | OEM formed steel tubing |
| Included Hardware | Grommet and retaining nut included |
| Installation | Direct-fit OEM replacement |
| Shipping Weight | Approximately 0.17-0.18 lb |
| Prop 65 | Not applicable |
FAQ
What does Cummins 3942592 connect to?
This fuel return line connects from the fuel return tee fitting to the quick-connect fitting that routes fuel back to the tank on VP44-equipped Cummins trucks.
Will this fit common-rail 5.9L Cummins trucks?
No. Cummins 3942592 is specifically designed for 1998.5-2002 VP44-equipped 24-valve Cummins engines and does not fit later common-rail trucks.
Is this a genuine Cummins fuel line?
Yes. This is a genuine Cummins OEM fuel drain tube manufactured to factory specifications for fitment and durability.
Does this line require modification during installation?
No. The 3942592 fuel return line is a direct-fit formed steel replacement that installs using factory routing and connections without bending or modification.
