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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Saltie
Lowell, US
★★★★★ 5
Buy it!
Color: Champagne Gold - 01
I love the glitter on my body, it stays and is not sticky! But does get everywhere I touch haha
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Reviewed in the United States on April 29, 2026
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Me
Cuba, US
★★★★★ 4
LOTS of glitter
Color: Champagne Gold - 01, Color: Champagne Gold - 01
A little goes a long way, one drop is packed with glitter. Also it actually dries to matte finish, not dewy.
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Reviewed in the United States on December 29, 2025
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Vibez byMi💅🏾
Lake Worth, US
★★★★★ 5
Great summer or event buy
Color: 3 Pcs SET, Color: 3 Pcs SET
Great shimmer I add them to oils for that glow effect ✨️. So cute and soft no cutting from glitter like some hard flakes vs powder.
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Reviewed in the United States on May 1, 2026
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ThatBabeEmily
Grantham, US
★★★★★ 5
Worth it, very pretty
Color: 3 Pcs SET
very pretty on the skin, love that it comes with all three tints. Will be buying as presents!
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Reviewed in the United States on May 13, 2026
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L. M. Perkins
Los Angeles, US
★★★★★ 3
Pretty but doesn’t last long.
Color: Silver White - 02
Pretty. But doesn’t last long.
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Reviewed in the United States on May 20, 2026

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