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Holley 12-428 34 GPH Mighty Mite Electric Fuel Pump, 7-10 PSI

Part # 12-428 Be the first to write a review

Street Carbureted or Diesel Applications
Compatible with all fuels and fuel additives

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Holley 12-428 34 GPH Mighty Mite Electric Fuel Pump, 7-10 PSI

Estimated Ship Date: 07/30/2026
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$82.97
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Holley pumps have fueled more performance engines than all others and the Holley line keeps on growing! Holley is proud to introduce the all new Holley Mighty Mite™ electric fuel pumps! They're big on performance, but small in size! They're quiet, easy to install and work with gas, diesel, blended alcohol and E85!

A regulator may be needed for carbureted applications requiring less fuel pressure. We recommend the Holley 12-803 or 12-804 fuel pressure regulator.

Features:

  • 12 volt operation
  • 7-10 psi operating pressure
  • 34 gal/hr flow
  • Good for up to 400HP naturally aspirated
  • Reliable solid state design provides longer life
  • Not designed for use on aircraft of any type.
  • Compatible with all fuels and fuel additives (gas, diesel, blended alcohol, ethanol, e-85)
  • Simple 2 wire hookup
  • Self-priming and regulating
  • 50” dry lift capable
  • Quiet operation â€" 65db
  • Great for carbureted trucks, cars, generators and agricultural equipment â€" also makes a great transfer pump
  • Engineered and matched performance with Holley®, Demon®, Quick Fuel® and Edelbrock® carburetors(all trademarks are property of their respective owners. Edelbrock is a registered trademark of Edelbrock,LLC)
  • Comes with fuel filter, fittings and mounting hardware
  • Made in the USA
  • Hose Barbs Fit 5/16" Fuel Hose
Brand Holley
Emission Code5
Product TypeFuel Pumps
WarrantyManufacturer's Limited 90 Day (1 Year with Warranty Registration)
UPC090127714973
Manufacturer Part Number12-428
Part Number12-428
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.
Instructions for Part# 12-428
Should be mounted within 50 in. of the fuel tank.<br><br>***This model does not have a one-way check valve or an anti-siphon valve, so fuel can be pulled in either direction when the pump is turned off.<br><br>Perfect for a Diesel lift pump!<br><br>Ideal for use with Earl's Vapor Guard Carburetor Hose!
Manufacturer's Limited 90 Day (1 Year with Warranty Registration): See Details

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      *Free Shipping & 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.