Auxiliary Fuel Tank Install Kit Diesel for 2013+ Dodge Ram - Gravity

In this review the Auxiliary Fuel Tank Install Kit is judged on fit, durability and ease of installation for Dodge Ram owners running diesel engines. The bottom line: this kit delivers a simple gravity-fed solution to add an auxiliary tank to 2013 and newer Dodge Ram 1500, 2500 and 3500 trucks, and its strongest selling point is reliable, corrosion-resistant materials that keep a steady fuel feed without complex plumbing. Owners who need a straightforward OE-style install will appreciate the practical design and long service life.

Key Features

• Corrosion-resistant construction: The kit uses high quality aluminum and rubber components to resist corrosion and extend service life in a fuel environment.
• Gravity fuel supply: Designed to provide a stable gravity-fed fuel flow, it helps control levels from the OE tank without requiring pumps.
• Vehicle compatibility: Made specifically for Dodge Ram 1500, 2500 and 3500 models from 2013 to current when equipped with a diesel engine.
• OE part match: Sold to replace OE part number 11408 (011408), which simplifies verification before purchase.
• Simple installation: The kit is described as easy to install, allowing a competent DIYer to add an auxiliary tank without specialized tools.
• Included hardware: A complete set labeled 11408 is provided so installers have the parts needed for the intended connection.

Who It's For

This kit is best for diesel Ram owners who want to add a gravity-fed auxiliary fuel tank for longer range or fewer refueling stops, and who prefer a hardware solution that follows OE part numbering and fitment. It suits mechanically comfortable DIYers or professional installers who want aluminum components that resist corrosion.

It is not for gasoline-powered trucks or for owners who need an electronic transfer pump or advanced fuel management. Buyers should verify the OE part number on their vehicle (11408 or 011408) and confirm they have a diesel engine before purchasing.

Pros & Cons

Pros

• Durable aluminum and rubber parts resist corrosion for longer service life.
• Gravity-fed design gives a simple, reliable fuel supply without extra pumps.
• Easy installation for those familiar with fuel system work and matching OE part numbers.

Cons

• Some installers report the hose may not secure perfectly over metal fill parts, requiring extra clamps or adjustment.

Specifications

Our Verdict

The Auxiliary Fuel Tank Install Kit is a practical, value-oriented option for diesel Ram owners who need a straightforward gravity-fed auxiliary tank connection that matches OE part number 11408. With corrosion-resistant materials and an uncomplicated install, it is a good choice for DIY installers or professional shops, provided buyers confirm diesel fitment and may plan for minor hose securing adjustments.

Frequently Asked Questions

Will this kit fit my Ram?
It fits Dodge Ram 1500, 2500 and 3500 trucks from 2013 and newer with diesel engines; verify your OE part number is 11408 or 011408.

Does it require a pump?
No, the kit is designed for a gravity-fed fuel supply and does not include an auxiliary pump.

Are all parts included?
The package includes one set labeled 11408; contact the seller if any hardware appears missing.