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Holley

Holley 12-125 125 GPH HP Fuel Pump

  • 125 GPH flow rate
  • 0.38 inch threaded inlet and outlet, NPT connector
  • Gerotor gearset, quiet running
  • Rack mount, universal fit
  • Aluminum body with hard anodized base, chrome motor
  • 2.2 kg item weight

Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A quiet gerotor fuel pump with threaded ports and a rack mount, made for race or street engines. The spec table lists motorcycle as the vehicle type, so check the use against Holley.

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ASIN: B000M294RQModel: 12-125Category: Electric Fuel Pumps

Overview

A gerotor gearset moves fuel in this Holley HP pump, which the maker says runs quietly compared with vane designs. The base is hard anodized to a mil-spec finish, and a chrome motor and powder coated bracket complete the look.

Holley says the pump can feed stout race engines while staying at home on the street, and the style suits an exposed install. The listing is confusing on use, with a motorcycle vehicle type beside a universal fit, and it gives no pressure rating.

Who it's for

A builder with room to rack mount a pump, and fuel lines that suit threaded ports, can use this on a race or street engine. Anyone needing a published pressure rating or an in-tank unit should look at a different listing.

Pros and cons

Pros
  • Gerotor design runs quietly
  • Aluminum body with anodized base
  • Threaded NPT ports
Cons
  • Pressure rating not listed
  • Vehicle type reads motorcycle
  • Fuel type limited to gasoline
  • Mounting hardware not described

Performance notes

A gerotor gearset pumps with an inner and outer rotor, described as quieter and more efficient than traditional vane pumps. The flow rate sets how large an engine it can feed, and no pressure or amperage figures are listed.

Where it stands among electric fuel pumps

  • #4 most-searched brand and model of the 11 electric fuel pumps lines we track (by search demand, not sales).

From the specs of the 15 electric fuel pumps we list; not a test result.

Specifications

BrandHolley
Model12-125
Dimensions & fit
Inlet size0.38 inches
Weight2.2 kg
Capacity & performance
Flow125 GPH
Construction & materials
BodyAluminum
Compatibility & installation
Vehicle typeMotorcycle
MountingRack Mount
Other details
InletThreaded
FuelGasoline
StyleGerotor
ConnectorNPT
OutletThreaded
Fit typeUniversal Fit

Frequently asked questions

How big is the Holley 12-125 fuel pump?

The item dimensions are 11.1 x 7.15 x 5.8 inches, with a weight listed in the specs.

What size are the ports on the Holley 12-125?

The inlet and outlet are both threaded at 0.38 inches, with an NPT connector type.

Is the Holley 12-125 only for motorcycles?

The vehicle type row says motorcycle, but the fit type is universal and the description mentions race and street engines. Confirm use with Holley.