TOPWAY 12V DC Fuel Transfer Pump 3.7 GPM — Portable Gasoline/Diesel Pump with Reversible Flow and Overheat Protection

TOPWAY 12V DC Gasoline Fuel Pump is a portable, self-priming transfer pump that moves gasoline, diesel and light oils up to 3.7 GPM with reversible flow and built‑in safety features.

This compact 12V transfer pump is designed for quick refueling, tank draining and on‑site fluid movement where AC power isn’t available. Constructed from cast iron and stainless‑steel components and driven by a copper motor, it balances durability with portability. The unit arrives with multiple hose adaptors and clamps and includes a handle for carrying, making it suitable for vehicles, boats, farms and remote work sites.

How fast and how far will this pump move fuel?

The TOPWAY pump delivers up to 3.7 gallons per minute at ideal conditions and offers a maximum suction lift of about 4.9 feet. Performance varies with hose length, fuel viscosity and altitude. Expect near‑rated flow with short suction lines and a 12V source capable of sufficient amperage.

• Flow rate: up to 3.7 GPM (gallons per minute)
• Max suction lift: approx. 4.9 ft
• Power: 12V DC input, copper motor for efficiency
• Best practice: keep suction line short and free of air leaks

Can I reverse the pumping direction and why would I use that?

This model includes a double‑way switch that lets you toggle forward and reverse pumping. Reverse flow helps clear hoses, drain a pump inlet or quickly switch between filling and emptying tasks without reconfiguring plumbing. The switch is straightforward to operate for onsite adjustments.

• Forward/reverse switch for directional control
• Useful for clearing air or purging lines
• Saves time when switching between fill and drain operations
• Control located on pump housing for easy access

What safety and durability features does it include?

TOPWAY built the pump with a copper motor, cast iron and stainless steel wetted parts, plus overheat protection and explosion‑proof design elements for safer handling of flammable liquids. A built‑in bypass helps protect the motor from pressure spikes. Always follow fuel handling guidelines and vehicle wiring practices when installing.

• Pure copper motor for higher efficiency and lower noise
• Cast iron and SS materials for corrosion resistance
• Overheat protection and built‑in bypass valve
• Explosion‑proof considerations for fuel environments

What accessories and installation details are included?

The pump ships factory‑tested with a set of hose adapters, clamps and sealing tape to accommodate common hose sizes. The handle and screws are packaged separately to reduce waste and are simple to attach with a screwdriver. Follow the enclosed wiring and grounding instructions before first use.

• Included: 1x diesel pump, 4 hose adaptors, 4 hose clamps, sealing tape
• Handle and screws provided in a small bag for tool assembly
• Factory‑tested prior to shipment
• Recommendation: use appropriate fuel‑rated hoses and inline filters

Who is this for: The TOPWAY 12V DC Gasoline Fuel Pump fits users who need a rugged, portable solution for transferring gasoline, diesel or light oils without mains power — owners of boats, RVs, tractors, farm equipment, small machinery fleets and mobile service technicians. It’s aimed at people who value a compact, reversible pump with practical safety features and a selection of installation fittings included. For safe operation, pair it with fuel‑rated hoses and follow vehicle wiring limits and local fuel handling regulations.