Description
Product Overview
The iFJF 11025 Diesel Fuel Tank Auxiliary Mounting Kit is the complete gravity-feed solution for connecting an auxiliary diesel transfer tank to your truck's main fuel tank. Designed for heavy-duty diesel pickups including the 1999–2019 Ford F-250/F-350 Super Duty (2WD & 4WD), 2011–2017 Chevy/GMC trucks, and 1999–2012 Dodge Ram diesels, this kit includes every hose, fitting, and clamp you need to extend your driving range without stopping at the pump. Whether you are hauling cross-country, running a hot-shot service, or towing heavy trailers, this auxiliary tank kit gives you the fuel capacity and convenience to keep moving.
Vehicle Compatibility
| Make |
Model |
Year Range |
Drivetrain |
| Ford |
F-250 Super Duty |
1999–2019 |
2WD / 4WD |
| Ford |
F-350 Super Duty |
1999–2019 |
2WD / 4WD |
| Chevrolet / GMC |
2500HD / 3500HD |
2011–2017 |
2WD / 4WD |
| Dodge / Ram |
2500 / 3500 |
1999–2012 |
2WD / 4WD |
Note: Designed for use with 3/8-inch female drain fittings on factory diesel fuel tanks. Some cutting of the filler hose or filler neck may be required during installation. Professional installation is recommended.
Technical Specifications
| Specification |
Details |
| Part Number |
11025 / FJ-TOOL130-11025 |
| Fill Fitting Size |
3/8 inch female drain |
| Fuel Hose Type |
Heavy-duty diesel-rated rubber fuel hose |
| Kit Contents |
Fuel hose, hose clamps, mounting fittings, hardware |
| Compatible Fuel |
Diesel (ULSD, B5–B20 biodiesel) |
| Installation Type |
Gravity feed (auxiliary to main tank) |
| Package Weight |
Approx. 2.4 lbs |
Key Features
-
Complete Gravity-Feed Kit: Everything needed to connect an auxiliary diesel transfer tank to your factory fuel tank — fuel hose, clamps, fittings, and mounting hardware are all included in one box.
-
Broad Truck Compatibility: Engineered to fit 1999–2019 Ford F-250/F-350 Super Duty (all cab configurations), 2011–2017 Chevy/GMC 2500HD/3500HD, and 1999–2012 Dodge/Ram 2500/3500 diesel pickups.
-
Heavy-Duty Diesel Hose: The included fuel hose is rated for diesel fuel and resists kinking, cracking, and degradation even under extreme under-chassis temperatures and vibration.
-
3/8-Inch Drain Integration: Connects directly to the factory 3/8-inch female drain fitting on your main fuel tank for a secure, leak-free gravity feed that transfers fuel while you drive.
-
All Hardware Included: No trips to the hardware store — stainless steel hose clamps and all necessary mounting fasteners are included for a straightforward installation.
-
Extend Your Range: Add an in-bed auxiliary tank and double (or triple) your diesel range — ideal for long-haul towing, hot-shot trucking, RV transport, and overland expeditions.
Why Choose iFJF
iFJF has earned the trust of diesel truck owners by delivering durable, well-engineered fuel system components at a fraction of dealership prices. The 11025 Auxiliary Tank Mounting Kit uses quality materials selected for long-term diesel fuel exposure — not shortcuts. Each kit is assembled and inspected to ensure every clamp, fitting, and foot of hose meets our standards before it leaves the warehouse. When you choose iFJF, you get OE-grade reliability without the OE markup.
Frequently Asked Questions
- Q: Will this kit work with a gasoline-powered truck?
- A: This kit is designed and rated specifically for diesel fuel. While the hardware may physically fit some gasoline applications, the hose material and gaskets are optimized for diesel. We recommend using it only with diesel fuel systems.
- Q: Do I need to drill into my factory fuel tank?
- A: No drilling is required. This kit connects to the existing 3/8-inch female drain fitting on the factory fuel tank. You may need to cut a section of the filler hose or filler neck to route the auxiliary fuel line.
- Q: Is professional installation recommended?
- A: While experienced DIYers can complete this installation, we recommend professional installation. Working with fuel systems involves safety considerations, and proper hose routing and clamp tightness are critical to prevent leaks.
- Q: Can I use this kit with an aftermarket auxiliary fuel tank?
- A: Yes, this kit is compatible with most in-bed auxiliary/transfer diesel tanks that have a standard gravity-feed outlet. Verify that your tank has a 3/8-inch outlet or plan to use an appropriate adapter.
- Q: Does this kit include the auxiliary fuel tank itself?
- A: No, this is the mounting and connection kit only. The auxiliary diesel fuel tank (transfer tank) is sold separately. This kit provides the hose, clamps, and fittings needed to connect a transfer tank to your factory fuel tank.
Explore More iFJF Products
Building your diesel fuel system? Check out our complete range of iFJF diesel accessories, including the 11029 Diesel Install Kit with brass rollover valve, replacement fuel hoses, and mounting hardware. For Ford Super Duty owners, browse our full selection of Ford truck parts.
📚 Related Guides & Articles
