JMCHstore 5-Gallon Metal Generator Fuel Tank – Direct-Fit Replacement, 0.8mm Steel, Includes Cap & Gauge

JMCHstore's 5-gallon (18.9L) metal replacement fuel tank is a direct-fit, heavy-gauge steel tank designed to replace worn or damaged tanks on many 2,000–4,500W portable generators.

If your portable generator needs a larger, more durable fuel reservoir or the original tank is corroded or leaking, this JMCHstore tank is built to be a drop-in solution for a wide range of popular models. Constructed from 0.8 mm ST14 cold-rolled steel, it ships complete with a chrome cap, fuel petcock, fuel filter, fuel gauge and four installation gaskets so you have everything needed for a standard replacement job.

Which generators will this 5-gallon tank fit?

This tank is engineered to work with many common portable generator brands and models, including Predator, Champion, Generac GP3250, Honda EC2500/EB3500 series, WEN, Westinghouse WGen 3600, Centurion and more. Compatibility depends on the mounting center-to-center dimensions and fittings.

• Commonly compatible models: Predator 3200–4000W, Champion 196cc, Generac GP3250.
• Also fits many units from DeWALT, i-Power, Briggs & Stratton, DuroMax and UST.
• Mount spec to check: 505 mm (19.9") x 335 mm (13.2") x 110 mm (4.33").
• Always verify your original tank’s measurements before ordering.

What are the construction and usability highlights of this replacement tank?

The tank body uses ST14 cold-rolled steel at 0.8 mm thickness for a balance of strength and manufacturability, resisting dents and deformation under normal use. It includes a fuel petcock sized for 1/4" (6 mm) internal diameter hoses and comes with a preinstalled fuel filter and gauge to simplify installation.

• Material: durable 0.8 mm ST14 cold-rolled steel for longevity.
• Fittings: 1/4" (6 mm) petcock port compatible with standard hoses.
• Hardware: chrome cap, fuel filter and fuel gauge included.
• Installation: four gaskets supplied for secure mounting and leak prevention.

How straightforward is installation and what is included in the package?

Designed as a practical replacement, this tank arrives with the essential fittings to reduce the number of extra parts you'll need. Installation typically involves removing the old tank, aligning the mounting holes to the specified center-to-center measurements, fitting the gaskets and connecting the supplied petcock, hose and filter.

• Package contents: 1x gas tank, 1x fuel petcock, 1x chrome cap, 1x fuel filter, 1x fuel gauge, 4x install gaskets.
• Tools required: basic hand tools (wrenches, screwdrivers) and possibly a fuel hose clamp.
• Tip: Drain old fuel and work in a well-ventilated area to reduce fumes and risk.

Who is this for? The JMCHstore 5-gallon replacement tank is aimed at owners of small to mid-size portable generators who need a robust, larger-capacity fuel tank to extend run time or to replace a damaged original. It’s well-suited to DIY mechanics, fleet maintenance teams, rental businesses and homeowners who prioritize durable materials and a full hardware kit for a straightforward swap. Before purchasing, confirm your generator’s mount dimensions and inlet/outlet hose size to ensure a proper fit.