# 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.

- [Original product page](https://best-deals.pro/product/jsd-auto-parts-m623-auxiliary-fuel-tank)
- [View offer](https://best-deals.pro/visit/jsd-auto-parts-m623-auxiliary-fuel-tank)
- Market: US
- Language: en-US
- Currency: USD
- Brand: JSD AUTO PARTS
- Model: Fuel tank
- Price: 75.90 USD
- Previous price: 94.88 USD
- Discount: 20%
- Price checked: 2026-11-14T19:02:57.807Z
- Rating: 5 / 5
- Reviews: 1

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## 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.

## 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.

## Specifications

### Identity
- Brand: JSD AUTO PARTS
- Model: Fuel tank
### Capacity and connection
- Capacity: 6.8 gallons
- Outlet: 1/4" NPT outlet
### Materials and finish
- Material listed: Alloy Steel, Aluminum, Polyethy
- Exterior finish: Spun
### Fitment and fuel
- Vehicle service type: Universal
- Fuel type: Gasoline
### Dimensions
- Title dimensions and orientation: 12x14 Vertical
### Warranty
- Manufacturer warranty description: Three years quality warranty

## Before you buy

- 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.

## In the box

- 2 mounting brackets (Included)
- Cap (Included)
- Housing (Included)

## 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.

## Customer feedback

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.

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## Add-ons

- [Mini Petcock Fuel valve 90 degree 1/4 NPT x 1/4 inch barb Petcock for 000183 for 80210 for 35-9072 for 21-102](https://best-deals.pro/visit/jsd-auto-parts-m623-auxiliary-fuel-tank)

## Images

![JSD AUTO PARTS M623 6.8-Gallon Auxiliary Fuel Tank — 1](https://best-deals.pro/i/REYGi5j4EcAxVT1gb_Psyi14gxDEzW3TanhkIQAfy-JkdxWWxDh4dOlGznbl91vGJAIlM3r7CUpvX8v8YyacaSeuh6d3AOqbzbzh_v5NnYOE20be2bGG7qp1.jpg)

![JSD AUTO PARTS M623 6.8-Gallon Auxiliary Fuel Tank — 2](https://best-deals.pro/i/xfpv8w9NEoAZF1k7QKEj9L-1Rbb3VnVvtoc6N_jK1Wh-jDkfRWMPY6sRcEhjQKO4_iXEJw_JoUigs-qWZAKL6gYvRf8ZNNbRkt6lnGtqWUKH8axcl1m0SP0m.jpg)

![JSD AUTO PARTS M623 6.8-Gallon Auxiliary Fuel Tank — 3](https://best-deals.pro/i/3Pf8s-7Gbx17H3ZsJA35oOaP87EttYGjfkExpna8VabS7dXBVS_0bIwP7qEi5NIFmJoEYL5z07k1dQJYnLQVi17uxopkXdWQYS_EzAQbLNXQAH9IVrUHBToN.jpg)

![JSD AUTO PARTS M623 6.8-Gallon Auxiliary Fuel Tank — 4](https://best-deals.pro/i/Kme5Z4ma9QKVq6Jqy8vESOEclIQs0QSABTgQ2o2mZtAYWkhCGlpo2R5J7NTy0nSd8MbPd7hRc3aPGKL9TRdAnL3N_1DJ_CTq36W90yuN08Dae4OwpgP93az8.jpg)

![JSD AUTO PARTS M623 6.8-Gallon Auxiliary Fuel Tank — 5](https://best-deals.pro/i/tmoeu2PRc3uFzatPArupCOxUu9vUsomlXZPcYRQvOr0GZ5GpFKjG3PoUPVyN2F-vBkcXlkUNuhhT9fWdNvbgikKLjgO-MD3MUiDbakgbbFGaYEhxcFax1AX5.jpg)

![JSD AUTO PARTS M623 6.8-Gallon Auxiliary Fuel Tank — 6](https://best-deals.pro/i/CqlIySxcHvHJ5JExub_6kytiPZyFz3mowncFALLdI8EJxn4xmfCxx_9K2vdBEy4yHhoy6teSI4AEhDEPigL042shtL27cl30hlHlNgfDQwhHEXWHECy9NmWj.jpg)