Holley In-Tank RetroFit Fuel Module 525 LPH Return Style - 12-134
SKU: 51433221343

Holley In-Tank RetroFit Fuel Module 525 LPH Return Style - 12-134

Sale price$479.68 Regular price$532.98
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Description

Holley In-Tank RetroFit Fuel Module 525 LPH Return Style - 12-134Overview: The Holley In tank RetroFit Fuel Modules are now available with a 525 LPH Pump. Convert your factory tank or fuel cell to an in tank EFI fuel system quickly and easily! And add the benefits of a Holley Hydramat in the process! The conversion is easily accomplished with basic tools and requires no welding or fabrication. The billet aluminum module design includes a billet pump hanger bracket to control pump vibration while also providing a

Overview:

The Holley In-tank RetroFit Fuel Modules are now available with a 525 LPH Pump. Convert your factory tank or fuel cell to an in-tank EFI fuel system quickly and easily! And- add the benefits of a Holley Hydramat in the process! The conversion is easily accomplished with basic tools and requires no welding or fabrication. The billet aluminum module design includes a billet 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. Supports up to 1200 EFI or 1450 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:

  • Retrofit Fuel Module 525 LPH- Return Style
  • 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
  • Includes innovative Holley Hydramat to ensure consistent fuel supply. The 3” x 15” HydraMat mounting flange has 6 clocking pin locations to allow for 360 degree adjustment to clear sending unit levels or any tank floor restrictions that you might encoun
  • Black anodized aluminum construction for corrosion resistance and long lasting good looks
  • ¼” NPT ports for a wide variety of plumbing options
  • Optional roll over valve available

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Application Universal
Brand Holley
Diameter 4.8"
Emission Code 3
Free Flow LPH 525
Fuel Type E85
Fuel Type Gasoline
Material Billet Aluminum
NPT Thread 1/4 NPT
Product Type Fuel Pump Module
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: 51433221343

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4.3 ★★★★★
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Justin Lee
Battle Creek, US
★★★★★ 3
Great construction but poor mounting hardware
They are great once your put them in but mounting them was a huge pain. The included dry wall anchors are of really bad quality and rips up a huge opening if you have to undo them for whatever reason. But the more infuriating thing is the screws they come with, which is not quite Philips 2 and easily slips from most standard driver bits. It is very easy to strip these if you are not careful. The small amount of space at the corner almost doesn't allow for easy drill access so you might have to get creative. Overall good product, but I will highly recommend buying your own set of wall anchors and screws
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Reviewed in the United States on December 2, 2022
S
Verified Purchase
Socky
Charlottesville, US
★★★★★ 3
Sturdy as heck But NOT easy to install
Because of the angles to install the screws, I'm definitely going to have to say NOT easy to install. Simple in concept; maybe if you have paper-thin walls. But if you don't it is a pain to screw those in with the tools provided. On the upside, they do come with a mini leveler. But it's just not a practical way of screwing in the shelf unless you are prepared to spend a surprising amount of time doing it. The shelves themselves are sturdy but that should be expected since it's basically a sheet of metal.
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Reviewed in the United States on November 17, 2022
A
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Anonymous
Alexandria, US
★★★★★ 5
Useful and Handy !
Very useful
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Reviewed in the United States on January 11, 2026
V
Verified Purchase
Valerie
Chelsea, US
★★★★★ 1
Tray
Nice but way too small from what the picture showed
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Reviewed in the United States on January 25, 2026
C
Verified Purchase
Chaithanya Kota
Waukegan, US
★★★★★ 5
Perfect Nightstand Organizer and Looks Amazing
Color: Dark Brown
This valet tray is exactly what I was looking for. The wood looks great and feels sturdy, and it keeps all my everyday items in one place. I use it for my keys, wallet, watch, and phone, and my nightstand looks much neater now. Its great to keep all the thing you need when leaving the house in one place. It’s the perfect size, well made, and looks nice enough to leave out on display. Would definitely recommend this if you want an easy way to keep your essential items organized or need a solid gift idea.
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Reviewed in the United States on January 21, 2026

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