MB5032-MB5034

Rear Fuel Tank w/Skid Plate for Jeep JK / JKU Factory Frame

$1,799.00
Shipping calculated at checkout.

Compatible With:

JKJKU
Choose Year for Evap Kit: 2007-2011
Rear relocation fuel tank for Jeep JK and JKU with 22 gallon capacity, EVAP compatibility, and skid plate. Not a rear stretch fuel tank.
Choose Year for Evap Kit: 2007-2011

As Jeep JK and JKU builds progress into larger axles, long travel suspension, and triangulated rear link setups, the factory fuel tank becomes a major limitation. Mounted in the center of the chassis, it takes up valuable space needed for suspension links, axle clearance, and proper rear packaging. Builders quickly find themselves working around the tank instead of building the suspension the right way.

The Motobilt MB5032 Rear Relocation Fuel Tank moves the fuel system behind the rear axle, opening up the center of the chassis for more advanced suspension layouts. With the tank relocated, builders gain the space needed for one ton rear axles and triangulated 4 link suspension systems without interference from the factory tank location. This allows the rear suspension to cycle properly and makes room for more aggressive builds. It is important to note this is a rear relocation tank, not a stretch fuel tank. It is designed to reposition the factory fuel system without supporting rear stretch packaging like a dedicated stretch tank.

The tank itself is a 22 gallon aluminum fuel cell constructed from 1/8 inch thick aluminum, CNC cut, formed, and TIG welded for strength and durability. The fill and vent tubes are CNC machined and designed to work with factory fuel fill and vent connections. The system is designed as a bolt-in installation that uses existing holes in the factory frame with no frame cutting required. It also retains compatibility with the factory EVAP system, eliminating the need for tuning. The included MB5034 kit provides the necessary fuel lines and fittings to integrate with the factory fuel and emissions systems, and the system is designed to reuse the factory fuel pump.

The aluminum tank is protected by a heavy duty 3/16 inch steel skid plate that mounts directly to the factory JK or JKU frame. The tank is secured to the skid using steel hold-down straps, creating a strong and protected fuel system for trail use. This setup is built for builders who want to free up chassis space while maintaining a functional and serviceable fuel system.

Want To Know More?

Get the Details

Find all the information you need to get the right part for your rig.

Important Information
  • Fits Jeep Wrangler JK / JKU 2007-2018
  • Relocates fuel tank behind the rear axle
  • This is a rear relocation tank. Not a rear stretch fuel tank
  • Frees up center chassis space for suspension and axle upgrades
  • Bolt-in design using existing factory frame holes. No frame cutting required
  • Compatible with factory EVAP system. No tuning required
  • Includes MB5034 fuel line and EVAP integration kit
  • Designed to reuse factory fuel pump
  • 22 gallon aluminum fuel tank
  • Constructed from 1/8 inch aluminum, CNC cut and TIG welded
  • Protected by 3/16 inch steel skid plate
  • Tank secured with steel hold-down straps
  • Ships with raw steel skid plate that must be painted or powder coated
  • Rear sway bar must be removed. Works with RockJock Anti-Rock Sway bars
  • Compatible with MB1081 Hatchet rear frame chop bumper
  • Not compatible with MB5099 Tomahawk rear stretch fuel tank
  • Recommended MB5019 fuel cell access hatch for easier service
  • Approximate weight 110 lbs
Product Specifications
  • Vehicle Fitment
    Jeep Wrangler JK / JKU 2007-2018
  • Part Type
    Rear relocation fuel tank and skid system
  • Fuel Capacity
    22 gallons
  • Tank Material
    1/8 inch aluminum
  • Skid Plate Material
    3/16 inch steel
  • Fuel Pump Compatibility
    Factory JK fuel pump
  • EVAP Compatibility
    Factory system compatible. No tuning required
  • Included Components
    Aluminum fuel tank
    Steel skid plate
    Steel hold-down straps
    MB5034 fuel line and EVAP integration kit
    In-tank fuel pump extension kit
  • Weight
    110 lbs approximate
  • Finish
    Tank raw aluminum
    Skid plate bare steel
  • Manufactured
    Made in the USA
Notes
  • Factory exhaust must be relocated at the rear of the vehicle.
  • Factory rear sway bar must be removed.
  • A Currie Anti Rock rear sway bar is required for proper suspension function.
    JK 2 door: CE-9900-JKR-JK2D
    JKU 4 door: CE-9900-JKR4-JK4D
  • Cutting of the rear floor is recquired to install the MB5019 fuel cell access hatch.
  • The tank sits deeper than factory. Fuel gauge will read full longer but remains accurate at empty.
  • Test fit all components before final coating or installation.
  • Skid plate must be painted or powder coated before installation
  • Compatible with MB1081 Hatchet rear frame chop bumper
    Not compatible with MB5099 Tomahawk rear stretch fuel tank
Frequently Asked Questions

Is this a rear stretch fuel tank?
No. This is a rear relocation fuel tank designed to move the factory fuel system behind the axle. It is not designed for rear stretch applications that require a dedicated stretch fuel tank like the MB5099.

Why relocate the fuel tank on a Jeep JK?
Relocating the fuel tank frees up space in the center of the chassis. This allows for larger rear axles, improved suspension geometry, and the ability to run triangulated 4 link setups without interference.

Will this work with a GM 14 bolt or Sterling 10.5 rear axle?

Yes, this fuel tank was made to fit larger axles such as the GM 14 bolt, Dana 60's, Sterling 10.5" ford axles and many others.

Does this tank require cutting the frame?
No. This system is designed as a bolt-in installation using existing factory frame holes. No frame cutting is required.

Will this work with the factory EVAP system?
Yes. The tank is designed to integrate with the factory EVAP system using the included MB5034 kit, so no tuning is required.

Do I need a new fuel pump?
No. This system is designed to reuse the factory JK fuel pump and includes the necessary extension components.

Reliable

Suspension

Buy Now

Explore Our

Apparel
and more

Buy Now

Reinforced

Diff Covers

Buy Now

Off-Road Ready

Bed Kits

Buy Now