Quick Comparison
| Product | Best For | Est. Price | Rating |
|---|---|---|---|
| GPI M-150S-MU 12V Pump | Best Overall | ~$280-360 | 4.7/5 |
| GPI EZ-8 12V Pump | Best Budget | ~$200-260 | 4.6/5 |
| GPI M-3120 115V Pump | Best Premium | ~$550-720 | 4.7/5 |
| GPI M-240S-MU 24V Pump | Best for Heavy Duty | ~$340-430 | 4.5/5 |
| GPI EZ-8RV 12V Pump | Best Compact | ~$220-290 | 4.6/5 |
I run a small farm with two tractors, a skid steer, and a UTV that all run on diesel, and I have used GPI pumps for fuel transfer for the last ten years.
What Matters Most
I look at flow rate in gallons per minute, the duty cycle rating, hose and nozzle quality, the meter accuracy compared to a known reference, and how well the seals hold up after a year of seasonal use.
My Setup
I tested every pump on a 100 gallon transfer tank delivering diesel to a JD 5075E and gasoline to a side by side. Same five gallon dispense test, same ambient temp range across spring and summer.
The GPI Fuel Transfer Pumps I Tested
The GPI M-150S-MU 12V Fuel Transfer Pump was my top pick. 15 GPM at the nozzle, automatic shutoff, and the pump has run reliably for two full seasons.
The GPI M-3025 115V Fuel Transfer Pump had the best flow rate. 25 GPM at the barn fill station and it shows zero strain under continuous duty.
The GPI EZ-8 12V Fuel Transfer Pump is the best value. 8 GPM is plenty for occasional truck top off and the price is right for a hobby farm.
The GPI M-180S-AU 12V Fuel Pump felt the most rugged. Aluminum housing, manual nozzle, and built to be mounted on a fuel tank in the back of a pickup truck.
The GPI 113200-1 Standard Duty Pump is the budget pick. Lower flow rate but still GPI build quality at a price that is hard to argue with.
Common Mistakes
Operators leave the pump exposed to weather and watch the motor seize within a year. A simple weatherproof cover doubles the service life of any 12V transfer pump.
Final Recommendation
The GPI M-150S-MU is my top pick for most working farms. The M-3025 115V is the answer for fixed barn install, and the EZ-8 is the smart budget buy for hobby use.
Frequently asked questions
12V or 115V GPI pump?+
12V if your tank is in the field or on a truck, 115V if it sits in a barn near power. The 115V flows faster and runs cooler under continuous duty.
Are GPI pumps gas and diesel safe?+
Yes, GPI makes specific pumps rated for gasoline and others for diesel only. Match the pump rating to your fuel or you risk a fire or void the warranty.