Holley Diecast In-Tank RetroFit Fuel Module w/Return - 12-137
SKU: 40555299493

Holley Diecast In-Tank RetroFit Fuel Module w/Return - 12-137

Sale price$404.98 Regular price$449.98
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Description

Holley Diecast In-Tank RetroFit Fuel Module w/Return - 12-137Overview: Are you interested in an EFI retrofit kit, but just can't get past the complication of the fuel system? Holley is proud to introduce their Universal In Tank Retrofit Fuel Modules! 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! And add the benefits of a Holley

Overview:

Are you interested in an EFI retrofit kit, but just can't get past the complication of the fuel system? Holley is proud to introduce their Universal In-Tank Retrofit Fuel Modules! 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! 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 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
  • 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
  • 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: 40555299493

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robaq06
Massapequa, US
★★★★★ 4
FIRST use of ziruma french press
This is a great, clean French press with no plastic parts at all. The filter mesh is excellent, and the brew comes out very clean with minimal sediment. Quality: Good but not superb. There is visible welding on the handle (see attached picture). I was expecting it to feel heavier overall — especially the lid, which weighs only about 180g (6.3 oz). Thicker walls would make the pot heavier and give it a more premium feel. The lid could really use a lock or twist mechanism to hold it securely in place. With this one, you have to hold the lid down when pouring out the last bits. All in all, it’s a solid French press that works well for daily coffee use.
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Reviewed in the United States on June 1, 2026
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Brennen
Charlottesville, US
★★★★★ 5
Definitely worth the money, Great Product!
Looks great, well built, very solid! Easy to use. I’ve used the glass French press coffee makers in the past and decided to switch to this one. I’m glad I did, the coffee stays hot and there is very, very, very little sludge at the end!! I just wish that I didn’t wait as long as I did to make the purchase! Definitely worth the money! Great buy!
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Reviewed in the United States on May 9, 2026
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marie
Birmingham, US
★★★★★ 5
AWESOME!
This is my first time using a French Press for coffee, and I chose Ziruma for its looks and durability. It's beautiful and works even better. No coffee grinds, just smooth, robust coffee that stays hot due to its double-walled design.
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Reviewed in the United States on April 21, 2026
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pjp
Cuba, US
★★★★★ 5
Wonderful grinder:
Color: Silver
This is one little powerful grinder. It holds 30 grams in the glass jar which is perfect for 2 cup 10oz cups. It has a dial to adjust the grind. Great for two! It works great. Really good purchase. It is a labor of love. l
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Reviewed in the United States on May 29, 2026
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SDFamily
Houston, US
★★★★★ 5
Great grinder! Fun to use. :)
Color: Silver
Wow, very well constructed, grinds all sorts of things perfectly. Completely happy. Looks great, super easy to use, nice size, little glass jar, very quiet, love that it's true ceramic. Handle comes off easily to store. Nice! :)
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Reviewed in the United States on April 13, 2026

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