Ruma Petrol Fuel Tank for Honda GX340 GX390 GX270 GX240 Engines — Replacement Kit with Cap & Hardware

Ruma's gasoline fuel tank is a direct-fit replacement tank kit designed to swap into Honda GX340, GX390, GX270 and GX240 style small engines and compatible clones.

If your pressure washer, water pump, compressor, go-kart or other power equipment with a GX-style engine has a cracked, leaking, or missing tank, this replacement from Ruma restores fuel capacity and mounting hardware in one kit. The assembly is engineered to match common Honda OEM mounting geometry and connects to many 240–420cc engines used across consumer and light-commercial equipment.

Will this tank fit my Honda GX390, GX340, GX270 or GX240 engine?

Yes — the Ruma tank is built to be compatible with a wide range of GX-series engines and popular clone models. It replaces many Honda part numbers and suits engines commonly found on pressure washers, pumps and compressors.

• Compatible with Honda GX390, GX340, GX270, GX240 engines and many 240–420cc clones.
• Works with equipment brands including Harbor Freight, Generac, Champion and various OEM clones.
• Designed to match the typical center-to-center bolt spacing used on these engines (confirm ~120 mm mounting distance for non‑Honda units).

What comes in the package and how simple is the swap?

The kit arrives complete with the parts needed to replace the original tank so you can get back in service without hunting down small components. Installation is straightforward for anyone comfortable with basic small-engine maintenance.

• Includes one fuel tank, two mounting bolts, two nuts, one fuel tube, two hose clips and one fuel cap.
• No special tools required beyond standard sockets/wrenches and pliers for hose clamps.
• Typical swap time: 15–45 minutes depending on access and whether old hardware is corroded.

Which equipment types and engine sizes are supported?

Ruma's tank supports a broad set of engine displacements and horsepower ratings commonly paired with GX-style heads. It suits both recreational and light commercial machines that use these engines or compatible aftermarket clones.

• Fits many 8–16 HP engines and 240cc to 420cc displacements (examples: 240, 270, 340, 389, 390, 420 cm³).
• Commonly used on water pumps (WT30/WT40 series), pressure washers, compressors, log splitters and go-karts.
• Replaces several Honda OEM tank part numbers and fits many Harbor Freight and other clone part listings.

How should I check fitment for a non‑Honda engine?

Measure key mounting points before ordering to ensure a secure fit on clone or third‑party engines. The most important measurement is the distance between the two mounting bolt centers.

• Confirm the center-to-center distance of mounting bolts is approximately 120 mm.
• Verify fuel line connection orientation and clearance around carburetor and throttle linkages.
• If unsure, compare the physical shape and cap location in product photos to your existing tank.

Who is this for: Ruma's replacement tank kit is aimed at DIY small-engine owners, service shops and equipment rental facilities that need a reliable, ready-to-install fuel tank for Honda GX-series engines and compatible clones. Choose this kit when you want OEM-style compatibility plus the mounting bolts, fuel hose and cap included so the machine can return to operation quickly and with minimal parts hunting.