GPI G20 12V 20 GPM with Filter

Last updated: November 3, 2026

GPI G20 12V 20 GPM with Filter
3.9/5#3 of 14 in 12V DC fuel pumps
3.9

The most complete 12V diesel kit short of continuous duty: filter, auto nozzle and long hose. Worth it for anyone fueling common-rail diesel equipment from a field tank.

  • 20 gpmFlow
  • 30 min onDuty cycle
  • NoMeter
  • YesUL listed
Check price at Amazon$839.99

Price checked November 3, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • A 10 micron filter in the box keeps dirt and water away from modern diesel injectors
  • 20 gallons a minute with an automatic nozzle and a 14 ft hose
  • UL listed with a limited lifetime warranty
Cons
  • Draws 34 A, more than any other 12V pump here, so wiring must be heavy
  • Must rest 30 minutes after each 30 minutes of running
  • Comes with a diesel nozzle that will not fit gasoline filler necks

How it scores

The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its power. How we rank explains each one.

Specifications

Model numberG20-012AD+FK (162020-03)
Pump
Power12V DC
Flow20 gpm
Duty cycle30 min on
Current34 A
Max pressure12 psi
Max head15 ft
MountBung
Safety
UL listedYes
Explosion-proof motorYes
Gasoline approvedYes
In the box
MeterNo
NozzleAutomatic
Hose14 ft
FilterYes
Suction pipeYes
Power cable18 ft
Build
Weight19 lb
WarrantyLimited lifetime

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