Holley In-Tank RetroFit Fuel Module- Returnless Style 12-133
SKU: 65221193127

Holley In-Tank RetroFit Fuel Module- Returnless Style 12-133

Sale price$449.98 Regular price$499.98
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Holley In-Tank RetroFit Fuel Module- Returnless Style 12-133450 LPH Returnless Drop In Retrofit EFI Fuel System w Hydramat Supports up to 875 EFI or 1100 Carb HP (@ 60 PSI at 13. 5 Volts 16. 9 AMP Draw) 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.

450 LPH Returnless Drop-In Retrofit EFI Fuel System w/Hydramat Supports up to 875 EFI or 1100 Carb HP (@ 60 PSI at 13.5 Volts / 16.9 AMP Draw)

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.

NOTES: It is recommended to use a Holley 12-753 30 Amp Fuel Pump Relay along with a minimum size of 12 Gauge wire for your installation. *** Maximum 6AN line and fitting size due to space limitations between unit and fuel tank.

Features:

  • The easiest way to convert your vehicle to an in-tank, EFI fuel system
  • Installs in any fuel tank from 8? to 12? deep to fit a wide variety of applications
  • The low profile 5 inch diameter design is only 1.275 inches 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
  • Black anodized aluminum construction for corrosion resistance and long lasting good looks
  • ?? 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
  • Eliminates the need for a return line and conventional fuel pressure regulator. Thus, simplifying your installation
  • Includes an internal fuel pressure regulator preset at 60 psi for a wide variety of applications. No return line required!

Specs:

Application Universal
Average Current Draw 16.9Ampere
Average Flow Rating 450Liters per Hour
Brand Holley
Clearance Category Air and Fuel Delivery
Connector Color Black
Connector Gender Male
Connector Quantity 1
Discount Percentage 26-50%
Emission Code 5
Free Flow LPH 450
Fuel Filter Included Yes
Fuel Sending Unit Included No
Fuel Tank Pressure Sensor Included No
Fuel Type E85, Gasoline
Gasket Or Seal Included Yes
Gasket Or Seal Material Foam
Grade Type Performance
Height Adjustable
Housing Material Aluminum
In Tank or External In Tank
Inlet Fitting Thread Size 1/4Inch
Inlet Quantity None
Inlet Type NPT
Internal Or External Strainer External
Lock Ring Included Yes
Material Billet Aluminum
Maximum Pressure 60Pounds per Square Inch
Minimum Fuel Tank Depth 8 Inches
Mounting Hardware Included Yes
Negative Ground Yes
NPT Thread 1/4 NPT
Outlet Fitting Thread Size 1/4Inch
Outlet Quantity One
Outlet Type NPT
Product Type Fuel Pump Module
Pump Type Electric
Regulator Included Yes
Sale Category Air and Fuel Delivery
Top Mount Diameter 5Inch
Universal Or Specific Fit Universal
Voltage 12Volts DC
Warranty Limited 90 Day
Wire Harness Included Yes
Wire Quantity 2
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: 65221193127

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 275 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
L
Verified Purchase
Lauren Harvey
Lake Worth, US
★★★★★ 5
Adorable!
Size: 7 Toddler, Color: Black
These little shoes are absolutely adorable! I got my 2 year old daughter the black sparkly ones. I originally ordered a size 6, but had to return & swap for a size 7. Not sure if this shoe runs a little small or if my daughter’s foot is just a little big. They are a soft rubber & they smell amazing (I know that sounds weird but when you receive them you will see what I’m talking about lol). They seem like very good quality & like they will last awhile, especially on a 2 year old who is hard on shoes!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2024
N
Verified Purchase
Normabee
New York, US
★★★★★ 5
They are comfortable daughters
Size: 12 Little Kid, Color: Pearly White/Black
Soft and comfortable for my 6 year old. She loves to wear them with dresses.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
I
Verified Purchase
Idabel
Whiting, US
★★★★★ 5
Pretty
Size: 11 Little Kid, Color: Black
My daughter loves Mini Melissa shoes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2026
M
Verified Purchase
Mrs.verygood
Phoenix, US
★★★★★ 5
Runs small
Size: 5 Toddler, Color: Black
It’s a beautiful shoe however runs very small
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2025
M
Verified Purchase
Melissa Thompson
Lowell, US
★★★★★ 4
They are cute
Size: 7 Toddler, Color: Transparent Rose/Black
Cute shoes, Velcro needs to be stronger
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025

recommand products