Holley® (05-07) Silverado/Sierra 255 LPH E85 FlexFuel Pump Assembly
Holley® (05-07) Silverado/Sierra 255 LPH E85 FlexFuel Pump Assembly


Holley® (05-07) Silverado/Sierra 255 LPH E85 FlexFuel Pump Assembly

Regular price$532.95
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Compatible: (5.3L)

2005 - 2007 Chevy Silverado

2005 - 2007 GMC Sierra 


This pump can accommodate E85 or higher octane fuel types


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.

Holley now offers offers a line of high performance Drop-in fuel modules to cover a wide ranges of vehicles from sports cars to pickup trucks. These Drop-in modules have been designed to the highest quality standards to provide increased performance and fuel efficiency for most stock, turbo, and supercharged applications capable of supporting 550+ horsepower.


  • Complete drop-in fuel module assembly
  • Integrated fuel storage and filtration technology
  • Built in, pre-calibrated fuel level sensors
  • Plug and play wiring harnesses
  • Capable of supporting 550+ hp right out of the box
  • Designed for return line and pulse width modulation (PWM)

Application 2004-2007 Chevrolet/GMC Pickup 5.3L Flex Fuel
Brand Holley
Emission Code 5
Free Flow GPH 50
Free Flow LPH 255
Fuel System EFI
Fuel Type E85
Product Type Fuel Pump Module
Warranty Limited 90 Day
Part Number 12-955

Install Guide: