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Description
Holley Diecast In-Tank RetroFit Fuel Module Returnless System 12-159450 LPH 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) Of course there are many variables, estimates are based on gasoline. 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
450 LPH 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) Of course there are many variables, estimates are based on gasoline.
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 7? to 12? deep to fit a wide variety of applications
- The low profile 5 inch diameter design is only 1.275 inch 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
- Die cast 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
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 |
| Finish | Black |
| 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 | One |
| Inlet Size | 1/4 inch NPT |
| Inlet Type | NPT |
| Internal Or External Strainer | External |
| Lock Ring Included | No |
| Material | Die Cast Aluminum |
| Maximum Pressure | 60Pounds per Square Inch |
| Minimum Fuel Tank Depth | 7 inches |
| Mounting Hardware Included | Yes |
| Negative Ground | Yes |
| NPT Thread | 1/4 NPT |
| Outlet Fitting Thread Size | 1/4Inch |
| Outlet Quantity | One |
| Outlet Size | 1/4 inch NPT |
| Outlet Type | NPT |
| Product Type | Fuel Pump Module |
| Pump Type | Electric |
| Regulator Included | No |
| Sale Category | Air and Fuel Delivery |
| Top Mount Diameter | 5Inch |
| Universal Or Specific Fit | Universal |
| Voltage | 12Volts DC |
| Warning | California Proposition 65 |
| 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:
- 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
4.0 ★★★★★
Based on 676 reviews
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Product Reviews
★★★★★ 5
Excellent quality, just like the picture
Size: 10.5, Color: White/White
Looks just like the picture.
My bf is a size 10.5 and we got just that and its a perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 5
Nice shoes
Size: 12, Color: British Tan/Ivory
Nice, good looking shoes. My husband says that they are very comfortable. I would recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
★★★★★ 5
Perfect everyday digital watch
It does not have fancy features, but has everything we need everyday with great quality at reasonable price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 5
Top quality low budget watch!
The one thing budget watch collectors should know is that this Casio model is the only watch under $25.00 that comes with a mineral glass screen and not that cheap Acrylic plastic screen that scratches easily. It's also a 200 meter WR watch which is about 2 football fields in depth if you love snorkel diving off the coast. The screen visibility of reading the time and other features is outstanding. It also has 4 time zones you can program in , 5 Alarms, count down timer and stop watch. You can set it for 12/24 hours time format. I always order the steel bracelet that comes off another model of this because it not only looks and feels like a top quality watch but also matches the steel bezel. Do not buy the negative display version because it's unreadable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 6, 2025
★★★★★ 5
Casio's best yet!
Casio is by far the best digital watch company in the world but it just seems like this watch wins it all. The upcoming list is of reasons why I think this Casio watch is the best one you can buy.
Reason One:
The price is unbeatable! I have never seen such a great watch for the price of $13! And coming from Casio you know it won't be a rip off! There are plenty of other Casio watches that can do the same thing that this watch can do for a price twice as much! With a price like $13 nothing can go wrong and it won't be such a bummer is you don't like it overall. 5/5
Reason Two:
The amount of things it can do. This watch is capable of doing world time in twenty different spots worldwide, you are able to bookmark your four most favorite spots (one of them being were you live), it has five different alarms with exceptional sound when it goes off, and it has a timer and stopwatch that can go to up to 24 hours. This watch was obviously built for a busy life style. 5/5
Reason Three:
Its water proof and has ten year battery. This watch is water proof up to 200 meters under water so you definitely won't need to worry about your watch getting destroyed by water. Its ten year battery makes it so that you won't need to replace the battery for quite a long time. 5/5
To sum it up this watch is cheap but not cheaply made, has world time, five alarms, a stopwatch and timer, can go under water for 200 meters and has a ten year battery! This is worth the buy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2015
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