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JSD AUTO PARTS M623 6.8-Gallon Auxiliary Fuel Tank1 / 6
Product guide

JSD AUTO PARTS M623 6.8-Gallon Auxiliary Fuel Tank

JSD AUTO PARTS M623 is a 6.8-gallon auxiliary fuel tank with a vertical 12x14-inch listing title and a 1/4-inch NPT outlet. Its listed aluminum construction and supplied brackets may suit custom installations, but the listing does not establish vehicle-specific fitment.

At a glance

  • The listing specifies a 6.8-gallon capacity and 1/4-inch NPT outlet for planning a compatible fuel-line connection.
  • Two powder-coated steel brackets are claimed for mounting.
  • The description claims an aluminum-alloy construction and corrosion resistance, while the materials field also lists alloy steel and an abbreviated polyethylene term.
Price
$75.90Save 20%

Reference price: $94.88

Price checked: Nov 14, 2026

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Often bought together

Pros and cons

Pros

  • A stated 6.8-gallon capacity provides a clear sizing reference for an auxiliary-fuel setup.
  • The stated 1/4-inch NPT outlet gives buyers a connection specification to compare with their fuel system.
  • The included-components field lists two mounting brackets and a cap.

Technical specifications

10 specifications
Identity
BrandJSD AUTO PARTS
ModelFuel tank
Capacity and connection
Capacity6.8 gallons
Outlet1/4" NPT outlet
Materials and finish
Material listedAlloy Steel, Aluminum, Polyethy
Exterior finishSpun
Fitment and fuel
Vehicle service typeUniversal
Fuel typeGasoline
Dimensions
Title dimensions and orientation12x14 Vertical
Warranty
Manufacturer warranty descriptionThree years quality warranty

What to know before buying

Listing details to confirm

The listing's material details are inconsistent: the feature text describes aluminum alloy, while the materials field lists "Alloy Steel, Aluminum, Polyethy". The title states 12x14 vertical dimensions, but the listed details do not clarify the unit. Confirm material, dimensions, outlet compatibility and fit for the intended installation before purchase. The manufacturer claims a three-year warranty, but its coverage terms are not provided here.

What’s in the box

Included
  • 2 mounting brackets
  • Cap
  • Housing

Who is it for?

A good fit for

  • Custom auxiliary-fuel installations where 6.8-gallon capacity and a 1/4-inch NPT outlet match the planned system.
  • Buyers seeking a tank listed with mounting brackets and a cap.

Less suited to

  • Buyers who need verified fitment for a specific vehicle or a confirmed material specification.
  • Installations requiring documented warranty coverage terms or dimensions with clearly stated units.
JSD AUTO PARTS M623 6.8-Gallon Auxiliary Fuel Tank · photo 2
Additional product photo 2

Customer reviews on Amazon

5 / 5 · 1 ratings
  • 5 stars100%100%
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The only supplied customer-feedback evidence is an aggregate rating with a very small sample. That is too limited to establish product-specific strengths or drawbacks, so buyers should rely on fitment and specification checks rather than treating the rating as proof of performance.

Frequently asked questions

What is the listed capacity?

The listing gives a capacity of 6.8 gallons.

What outlet does it have?

The description identifies a 1/4-inch NPT outlet. Check that it matches the fittings and fuel-line arrangement in your installation.

Are mounting brackets included?

The included-components field lists two brackets, a cap and a housing. The feature text specifically describes two powder-coated steel brackets.

Is the tank confirmed to fit my vehicle?

No vehicle-specific fitment is provided. Although the listing calls it universal, confirm dimensions, mounting requirements and connection compatibility for your setup.

JSD AUTO PARTS M623 6.8-Gallon Auxiliary Fuel Tank · photo 3
Additional product photo 3

Alternative options

Product details in Markdown