SKU: 73130234449

Holley Retrofit Intank Fuel Module - Returnless (HO12-131)

Sale price$725.40 Regular price$806.00
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Description

Holley Retrofit Intank Fuel Module - Returnless (HO12-131)HO12 131 IN TANK RETRO RETURNLES MODULE 255 LPH, 550HP EFI Or 700HP Carb @ 60 PSI Part Number: HO12 131 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

HO12-131 - IN TANK RETRO RETURNLES MODULE

255 LPH, 550HP EFI Or 700HP Carb @ 60 PSI

Part Number: HO12-131

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 billet aluminum module design includes a billet 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 (HP Rating @ 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 7.5" 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
Black anodized aluminium construction for corrosion resistance and long lasting good looks
1/4" 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!

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: 73130234449

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4.3 ★★★★★
Based on 28 reviews
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Verified Purchase
Jaxsology
Bozeman, US
★★★★★ 4
Fairly Priced and Fairly Nice iPad Pro Case
Color: Light Pink
I was on the hunt for a case for my iPad Pro (6th generation), and let me tell you, it was a wild ride! I scoured every review I could find, but it was like trying to find a needle in a haystack. The ones that were reasonably priced had all sorts of issues, and the ones that looked fancy were way too expensive and had just as many problems. Now, I know what you might be thinking: “You get what you pay for, right?” Well, I was determined to find a case that fit my budget and didn’t have too many complaints. After hours of searching, I finally stumbled upon a case that seemed to be a reasonable match. Here’s why I picked this one: It has most of the features I wanted. It covers the lens on the back of the iPad, and there’s a holder on top for the pencil allowing it to charge. I’ve gone through two cases before, and they all started to wear out pretty quickly. I didn’t want to spend a fortune on another case that would just fall apart so I found this one to be reasonably priced. The case itself is nice and sturdy, and it’s a great fit for my iPad. I charged the keyboard for the recommended 5 hours before I first used it, and I haven’t had a chance to test the battery life yet. But after charging, it was a breeze to connect it to my iPad. A little heads up: the connect button is actually the “C” on the keyboard, not the command or control key. I know, I know, confusing! But once you press the keys, Bluetooth turns on, and connection to the iPad went without any issues. I’ve seen some reviews mentioning that special characters weren’t working or that the keyboard would just stop working randomly. But so far, everything seems to be working perfectly. I’ll definitely update this review if anything changes. One thing I really like about this keyboard case is that once it’s connected, you don’t have to reconnect it again. That’s a huge plus! Another cool feature is that the instructions for pairing and using the keyboard are right on the bottom of the keyboard, which is super handy. Pros: - style and fit. - different angles for propping iPad while typing or watching videos - instructions for pairing and use on the bottom of the keyboard, Cons: - The only downside I’ve found so far is that you can’t swivel the iPad from landscape to portrait because the case doesn’t allow for that movement. For me this is a minor inconvenience, because I just close the case and turn it to portrait. If that’s important to you, then this might not be the case for you. Another thing I have noticed is that sometime while I am typing, and I type fast, I will hit something and get dragged somewhere else on the screen. I think this is a user inspired issue, but it is not that big a deal for me. Overall, this is a good functional case with a pretty good keyboard and iPad protection. I’m giving it 4 stars explained below. My Stars Explained 5 - Like finding money in your old coat pocket - pure joy! 4 - Almost perfect - like a pizza with just one missing topping. 3 - Like a movie that’s just okay—neither a blockbuster nor a total flop 2 - Like a blind date that went horribly wrong - cringeworthy. 1 - Like stepping on a Lego in the dark - painful.
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Reviewed in the United States on October 22, 2025
S
Verified Purchase
Shannon
Carnegie, US
★★★★★ 5
Love this case!
Color: Light Pink
This is an awesome case! Fits perfectly and love the color. Sturdy and does the job! Will be great for college!
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Reviewed in the United States on April 7, 2026
M
Verified Purchase
Ms B
Lake Worth, US
★★★★★ 5
Perfect fit, secure pencil slot, great touchpad.
Color: Navy Blue
EXCELLENT Keyboard case. I tried several to find the right one. Tried a bluetooth keyboard by itself, but there wasn't the convenience of an "all in one". Tried another one that had a magnetic connection between the ipad and the keyboard, but the ipad was not as positionable as I needed it to be. This "folio-type" case is similar to what I use for all my other tablets and devices - slim, securely closing, perfectly fitting my 3rd gen ipad pro - AND the slot for the apple pencil is PERFECTION! The touchpad is a little stiffer than I like but then I realized I DON'T actually have to press it to use it - just a tap accomplishes the same thing. I rely on the touchpad for a lot and this case is just really exactly what I need.
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Reviewed in the United States on February 27, 2026
S
Verified Purchase
StellaMoger
Louisville, US
★★★★★ 5
good value and battery life
Color: Purple
Love this!! the keyboard has a good life on it and charges pretty fast. I at first didn't really like that it detaches, but being able to hold the keyboard in my lap and type on the screen while I sit on the sofa is actually pretty nice. the trackpad does have a bit of a learning curve, but gestures/hotkeys are all listed on the bottom so it's easy to check whenever necessary. The material of the case itself also cleans really easy. I spilled a drink on it and it wiped right off. I feel like this is a pretty good value all things considered, especially when similar products at big box stores can eb a couple hudnred bucks. The only downside is that the keyboard, while slim, does add a bit of bulk to the case. It's not a huge deal for me, but my boyfriend who also has an ipad did notice the difference immediately.
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Reviewed in the United States on April 20, 2026
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Verified Purchase
Mikki Cheatham
Carnegie, US
★★★★★ 3
Works
Color: Light Gray
Heavy! It is a nice case and the keyboard works good. Turns off randomly, but not too annoying. This case is heavy though! It at least triples the weight of my iPad, which is opposite the reason I got an iPad Air. Too late to return, I just take the keyboard out, but it must be the magnets in the case that are so heavy.
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Reviewed in the United States on February 5, 2026

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