SKU: 38849469207

Holley Diecast In-Tank RetroFit Fuel Module w/Return - 12-171

Sale price$299.23 Regular price$332.48
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Description

Holley Diecast In-Tank RetroFit Fuel Module w/Return - 12-171Overview: Are you interested in an EFI retrofit kit, but just can't get past the complication of the fuel system? Available in return and returnless versions, you can rest assured Holley has the solution you need for your EFI fuel pump woes. Now you can convert your factory tank or fuel cell to an in tank EFI fuel system quickly and easily! The conversion is easily accomplished with basic tools and requires no welding or fabrication. The aluminum

Overview:

Are you interested in an EFI retrofit kit, but just can't get past the complication of the fuel system? Available in return and returnless versions, you can rest assured Holley has the solution you need for your EFI fuel pump woes. Now you can convert your factory tank or fuel cell to an in-tank EFI 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! Supports up to 875 EFI or 1100 Carb HP (@ 60 PSI at 13.5 Volts / 16.9 AMP Draw) Of course there are many variables, estimates are based on gasoline. Individual systems will vary based on fuel system design, regulator type, fuel cell location, etc...

Features:

  • The easiest way to convert your vehicle to an in-tank, EFI fuel system
  • Installs in any fuel tank from 7.5” to 12” deep to fit a wide variety of applications
  • The low profile design is only 1.275" 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
  • Ideal for Terminator EFI, Sniper EFI, MSD Atomic EFI or any TBI of EFI conversion
  • Optional roll over valve available
  • Two different fuel pumps are available to match your requirements - 255LPH or 450LPH for both return and returnless style systems

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Application Universal
Brand Holley
Diameter 4.8"
Emission Code 3
Free Flow LPH 450
Fuel Type E85
Fuel Type Gasoline
Material Die Cast Aluminum
NPT Thread 1/4 NPT
Product Type Fuel Pump Module
Warning California Proposition 65
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 38849469207

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HenriQ
Whiting, US
★★★★★ 5
Beautiful, luxurious-looking watch.
Color: Grey
Beautiful, luxurious-looking watches. Impeccable craftsmanship. Highly polished glass & reflective hour markers & arms pop with a luxurious shine in the light. Love these watches. So much so I have bought several in different color faces for different occassions. Each is beautiful. Finely detailed minute, hour & second hands are easy to read even in dim light. Outstanding quality for the price. Perfect size looks great on the wrist & keeps accurate time. I have had more compliments of these watches, than much more expensive watches I have.
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Reviewed in the United States on March 20, 2026
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Sebastian C.
Birmingham, US
★★★★★ 5
Nice homage watch. Love it!
Color: Blue
Real nice Patek homage. Great price
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Reviewed in the United States on May 25, 2026
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Finn
Cuba, US
★★★★★ 1
Cheap not worth the money
Color: Blue
You get what you pay for and most of these cheap watches from China that you get on Amazon aren’t worth the time you spent ordering them off the site. I bought like six of them as gifts and none of them lasted more than a month
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Reviewed in the United States on May 5, 2026
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James Galloway
Omaha, US
★★★★★ 5
Great buy!
Color: Blue
Great quality! Easy to adjust! Keeps time well and looks really expensive!
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Reviewed in the United States on April 2, 2026
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Ravante Robinson
Los Angeles, US
★★★★★ 4
Watch
Color: Silver white
Its looks high end for the price like Nixon high end but the latch gets loose easily
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Reviewed in the United States on January 1, 2026

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