Skip to main content

Holley Diecast In-Tank Carbureted RetroFit Fuel Pump Module-Returnless System

Part # 12-129 Be the first to write a review

255 LPH Drop-In Retrofit Carbureted Fuel System Supports up to 700 Carb HP (HP Rating @ 6 PSI at 13.5 Volts / 10.4 AMP Draw)

Holley Diecast In-Tank Carbureted RetroFit Fuel Pump Module-Returnless System

In Stock
Free Shipping - Lower 48 US States
$399.95
Add to Wishlist

5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

See Emissions Details
The Holley "red and blue" electric fuel pumps have been the performance standard for decades. They continue to perform well, however, the evolution of fuel pump technology has surpassed them in quiet operation and fuel delivery capabilities that an in-tank module can deliver. Looking ahead to the future, Holley has designed their latest retrofit pump module especially for the carbureted applications. The 5 inch diameter module design is very similar to the existing EFI pump modules using a 255 LPH pump, but includes a built-in regulator for lower fuel pressure that carburetor applications require. Now you can convert your factory tank or fuel cell to an in-tank fuel system quickly and easily! The conversion is easily accomplished with basic tools and requires no welding or fabrication. The aluminum module design includes a die cast pump hanger bracket to control pump vibration while also providing a low profile design to fit where space is at a premium. Holley's innovative clamping system and integrated fuel pump makes it easy. Once installed, hook up your fuel lines and your power source/ground and you're off and running! NO hassle! An added bonus is that you can upgrade this module if you eventually change to an EFI system by changing the internal regulator. Supports up to 700 Carb HP (@ 6 PSI at 13.5 Volts / 10.4 AMP Draw) Of course there are many variables, estimates are based on gasoline. Individual systems will vary based on fuel system design, fuel cell location, etc...

Features:

  • The easiest way to convert your vehicle to an in-tank fuel system
  • Installs in any fuel tank from 6.5” to 12” deep to fit a wide variety of applications
  • The low profile 5 inch diameter design is only 1.275 inches thick above the tank mounting surface for added clearance when needed
  • The innovative clamping system allows you to locate the module anywhere in the tank beside your existing sending unit
  • The clamping system allows you to rotate the unit 360 degrees for easier clocking of the plumbing and wiring locations under your ride
  • Die cast aluminum construction for corrosion resistance and long lasting good looks
  • ¼” NPT ports for a wide variety of plumbing options

About Holley

Holley Performance Brands is the undisputed leader in carburetors, fuel pumps, fuel injection, intake manifolds, fuel injection, and fuel systems.

ApplicationUniversal
Average Current Draw10.4 68
Average Flow Rating255 LPH
Brand Holley
CategoryAir and Fuel Delivery
Connector ColorBlack
Connector GenderMale
Connector Quantity1
Diameter4.8"
Emission Code5
Free Flow GPH67
Free Flow LPH255
Fuel Filter IncludedYes
Fuel Sending Unit IncludedNo
Fuel System TypeGasoline
Fuel Tank Pressure Sensor IncludedNo
Fuel TypeGasoline
Gasket Or Seal IncludedYes
Gasket Or Seal MaterialFoam
Grade TypePerformance
HeightAdjustable
Housing MaterialAluminum
In Tank or ExternalIn Tank
Inlet Fitting Thread Size1/4 IN
Inlet QuantityOne
Inlet TypeNPT
Internal Or External StrainerExternal
Lock Ring IncludedYes
MaterialDie Cast Aluminum
Maximum Pressure6 PS
Mounting Hardware IncludedYes
Negative GroundYes
NPT Thread1/4 NPT
Outlet Fitting Thread Size1/4 IN
Outlet QuantityOne
Outlet TypeNPT
Part TypeFuel Pump Module Assembly
Product TypeFuel Pump
Pump TypeElectric
Regulator IncludedYes
Sub CategoryFuel Pumps and Related Components
Top Mount Diameter5 IN
Universal Or Specific FitUniversal
Voltage12 2H
WarrantyManufacturer's Limited 90 Day Warranty
Wire Harness IncludedYes
Wire Quantity2
UPC090127061282
Part Number12-129
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
It is recommended to use a Holley 12-753 30 Amp Fuel Pump Relay along with a minimum size of 12 Gauge wire for your installation.
Manufacturer's Limited 90 Day Warranty: See Details
Reviews

    Your Review

    *Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.