SKU: 2834017289

Holley Diecast In-Tank Carb RetroFit Fuel Pump Module-Returnless System 12-129

Sale price$187.17 Regular price$207.97
Save 10%

Pay in installments of $51.99 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Holley Diecast In-Tank Carb RetroFit Fuel Pump Module-Returnless System 12-129Overview: The Holley "red and blue" electric fuel pumps have been the performance standard for decades. They continue to perform well, however, the evolution of fuel pump technology has surpassed them in quiet operation and fuel delivery capabilities that an in tank module can deliver. Looking ahead to the future, Holley has designed their latest retrofit pump module especially for the carbureted applications. The module design is very similar to the

Overview:

The Holley "red and blue" electric fuel pumps have been the performance standard for decades. They continue to perform well, however, the evolution of fuel pump technology has surpassed them in quiet operation and fuel delivery capabilities that an in-tank module can deliver. Looking ahead to the future, Holley has designed their latest retrofit pump module especially for the carbureted applications. The module design is very similar to the existing EFI pump modules using a 255 LPH pump, but includes a built-in regulator for lower fuel pressure that carburetor applications require. Now you can convert your factory tank or fuel cell to an in-tank 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! An added bonus is that you can upgrade this module if you eventually change to an EFI system by changing the internal regulator. Supports up to 700 Carb HP (@ 6 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, fuel cell location, etc...

Features:

  • The easiest way to convert your vehicle to an in-tank fuel system
  • Installs in any fuel tank from 6.5” 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

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Application Universal
Brand Holley
Diameter 4.8"
Emission Code 3
Free Flow GPH 67
Free Flow LPH 255
Fuel System Type Gasoline
Fuel Type Gasoline
Material Die Cast Aluminum
NPT Thread 1/4 NPT
Product Type Fuel Pump
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: 2834017289

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 30 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Judy Compton
Natrona Heights, US
★★★★★ 5
Charging station for your phone/Apple Watch
Color: Silver
Great size Durability easy to use Worth the money, great all around!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
A
Verified Purchase
A. Macdonald
Charlottesville, US
★★★★★ 4
Love it.
Color: Silver
Update: I’ve had this charger for about 9-10 months. I still love it, but it seems that the watch charger is only working intermittently. Sometimes it charges and sometimes it doesn’t. Another odd thing with the watch charger is that my watch will chime occasionally in the middle of the night. Doesn’t do this on the standard Apple Watch charger, so, I’m not sure what is causing this. Due to these issues with the watch charger, I dropped one star. Original Review: This charger is great. The magnetic hold is strong and it keeps my iPhone 16 pro max solidly in place all night. Despite this solid hold it can remove it easily by sliding the phone up or down off of the magnet. The fact that I can charge my watch and air pods simultaneously is even better. Being able to store all three items on one device that takes up a small footprint on my nightstand is even better. The hold on these items is very light and they are easy to remove as well. There is a small green led light, but I can say I don’t even notice it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2025
E
Verified Purchase
elarya abdelnour
Los Angeles, US
★★★★★ 5
GET IT
Color: Silver
LOVE IT!!! Charges all my apple products at the same time so i don’t have to have 10 chargers laying around anymore.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
P
Verified Purchase
Pen Name
Lowell, US
★★★★★ 5
Very nice charger
Color: Silver
This works great, good looking, and compact on the countertop.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
A
Verified Purchase
AgentH2
Lake Worth, US
★★★★★ 5
Holds the phone tight without blocking the road view.
Works very well an d gives me clear view of the phone withgout blocking the view of the road. Exactly what I was looking for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026

recommand products