SKU: 42530668132

Holley Diecast In-Tank RetroFit Fuel Module w/Return - 12-136

Sale price$304.18 Regular price$337.98
Save 10%

Pay in installments of $84.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Holley Diecast In-Tank RetroFit Fuel Module w/Return - 12-136Overview: 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 550 EFI or 700 Carb HP (@ 60 PSI at 13.5 Volts / 10.4 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” 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 400LPH 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 255
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: 42530668132

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 17 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Aida Norma Ramirez
Birmingham, US
★★★★★ 5
Fell in love with it !!
Absolutely amazing n gorgeous Just perfect for my spring project...size n i love the size...I just am totally in love with it! Thank you ❤️❤️❤️
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2026
M
Michael T.
Boise, US
★★★★★ 4
Charming little solar accent for the garden
This angel statue is absolutely adorable and adds a sweet touch to my front flower bed. The sculpted details are surprisingly refined for such a compact piece, and the solar panel charges well throughout the day to provide a gentle glow at night. The light isn't overly bright, but it creates a lovely ambient effect that's perfect for pathway edges or nestled among plants. The statue is smaller than I initially expected based on the photos, but that actually works in its favor—it's easy to tuck into various spots without overwhelming the space. I've had it outside for a few weeks now through some rain and wind, and it's held up beautifully with no fading or damage to the finish. The solar function has been consistent, lighting up reliably each evening. It's a thoughtful piece that would make a great gift, and the compact size means it works just as well on a small balcony as it does in a larger garden. If you're looking for a subtle, charming accent that requires no wiring or maintenance, this little angel statue is a winner.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025
T
T. L. Trester
Dallas, US
★★★★★ 5
Resin
This 8 inch tall resin angel will add the whimsy to your garden. It is solar powered to charge during the day so the butterfly will shine at night. Very durable and waterproof. This angel is very realistic with its wrinkles and dimples. I would recommend this cute little angel, but I feel it is a little overpriced.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 13, 2025
A
Verified Purchase
Armywife
Bozeman, US
★★★★★ 5
Great product! Wish I had found it sooner!
Perfect solution for our umbrella stands! It is slightly taller than original pipe on stand (this is a plus!) Has two bolts instead of one (Another plus) to help secure the umbrella better. Has two rubber reducers to fill in gap around the umbrella pole. Only issue is the shank on the bolt is too long (bolt that secures pipe to base). Extra bolt was too short. We are purchasing another one for another umbrella stand. Great price for the product! And was easy to install, keeps the umbrella straight and upright!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 10, 2025
H
Verified Purchase
HB
Houston, US
★★★★★ 5
Good quality, but likely holds water.
Good quality and was easy to install on base with two bolt lengths provided. I modifed by drilling a small hole through the base of the pole mount so that water can drain out. I have previously ended up with a rotten wooden umbrella pole because the pole mount held water!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026

recommand products