HOLLEY 255 LPH OE STYLE EFI FUEL TANK MODULES 1964-70 Mustang #12-305
SKU: 41384298660

HOLLEY 255 LPH OE STYLE EFI FUEL TANK MODULES 1964-70 Mustang #12-305

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Description

HOLLEY 255 LPH OE STYLE EFI FUEL TANK MODULES 1964-70 Mustang #12-305OEM TANK HANGAR 64 68 MUSTANG Overview This in tank fuel pump module is a high pressure unit that flows 255 liters per hour (LPH) and is capable of supporting electronic fuel injection (EFI) engines producing up to 550 horsepower A pre calibrated fuel level sending unit designed to work with the factory fuel gauge for this application is included This module also features a HydraMat filter which has a unique internal reservoir that keeps fuel

OEM TANK HANGAR 64-68 MUSTANG

Overview

This in-tank fuel pump module is a high-pressure unit that flows 255 liters per hour (LPH) and is capable of supporting electronic fuel injection (EFI) engines producing up to 550 horsepower  A pre-calibrated fuel-level sending unit designed to work with the factory fuel gauge for this application is included  This module also features a HydraMat filter which has a unique internal reservoir that keeps fuel available at the pick-up and also provides protection from contaminates Fuel pressure is internally regulated to 58 psi eliminating the added expense and effort of purchasing and installing an external fuel pressure regulator - no separate return line is required because this module returns excess fuel right inside the tank! This 1964-70 Mustang Muscle Car EFI Fuel Pump module was designed as a direct replacement for your factory pick-up and sending unit. There is no need to purchase a custom EFI fuel tank. You can even retain the factory fuel hard line - just connect the outlet of the pump module to the hard line on your vehicle with EFI-rated fuel hose and hose clamps available in the Earls Vapor Guard line. This Muscle Car EFI Module includes a 255 LPH fuel pump and a Holley HydraMat. HydraMat is an amazing patent-pending fuel reservoir system that reduces fuel starvation issues that might otherwise occur while cornering, accelerating, stopping, traversing inclines, and during low fuel conditions. This new kit has all of the extra components to fit all three sizes of Mustang fuel tanks from 1964-1970. You choose which fuel gauge float arm for your factory fuel tank size! Fitment: 1964-68 Mustang -16 gallon tank 1969 Mustang- 20 gallon tank 1970 Mustang- 22 gallon tank

 

Specs

Application 1960-65 Ford Falcon
1964-1970 Mustang
1967-1970 Mercury Cougar
Brand Holley
Emission Code 5
Free Flow LPH 255
Fuel Sending Unit Ohms 73-10 Ohms
Fuel Type Gasoline
Inlet Diameter (in) 5/16"
Product Type Fuel Pump Module
Vent Size N/A
Warranty Limited 90 Day
Part Number 12-305

 

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SKU: 41384298660

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Pam Volden
Lake Worth, US
★★★★★ 5
Best air flow
Size: 9.6" x 11.1" x 2.2"
I have a 2022 ram 1500 four-door. The factory filter from the ram dealer is about $40 but it’s not reusable. That was the only one I found that had good airflow into the cabin. I tried several other brands but the airflow was reduced excessively. The ram filter was 15 mph, most of the other aftermarkets dropped the airflow to about 9 mph. I just installed a K&N reusable filter and the airflow is back up to 15 mph. Great job K&N!!
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Reviewed in the United States on March 27, 2026
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CRF Ken
Dallas, US
★★★★★ 5
Fits Well and Reusable. I'm Happy.
Size: 9.6" x 11.1" x 2.2", Size: 9.6" x 11.1" x 2.2"
For less than the price of 2 disposable FRAM CV11671 cabin filters for my 2019 RAM 1500 and this will last forever. If it gets wet, like I've had happen with the paper throw-away filters due to stuff falling off trees in the spring and clogging cowl area water drains and backing up into filter ( yeah, that's a thing ) and can clean and dry this filter and reuse. Great directions came in the box along with a sticker to point out that this is a lifetime filter so someone doesn't throw it away. Do this yourself. Don't let some auto repair shop talk you into it. I was getting tires balanced recently and heard a quote they gave over the phone of $79 to do this. I don't know what kind of vehicle that was for but this ain't rocket science. Don't get ripped off. Now back to this filter. There is no arrow for air flow so I figure it flows well both ways and just put it in with the K and N logo right side up and facing out. It's not a straight in shot the way RAM positioned the opening for the cabin filter slot but was no big deal. Also realize this isn't a perfect square filter ...It's a rectangle so don't try to shove the fat end in and say it doesn't fit. I haven't noticed any air flow differences with the heating / ac system but some people say they do. I'm just happy I don't have to buy anymore disposable filters and can dry this if it gets wet. The cleaning and refresh spray kit is #99-6000 that comes with a 8oz and 12oz bottle and I'm trying to find that cheaper somewhere for when I do clean this thing.
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Reviewed in the United States on November 20, 2025
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TheGrandSyphor
Port Orchard, US
★★★★★ 5
Can’t go wrong with K&N
Size: 9.6" x 11.1" x 2.2"
So I recently took my pickup in to have some recall work done, half way through the process I got a call from the dealership stating I needed a new air filter and that a new one would cost nearly $60. I chuckled and told then to put the old one back in and I immediately came to Amazon and ordered this cabin filter. I’ve used K&N products in the past and have never been sorry, and that is the case with this lifetime filter. Upon installing this filter I noticed an IMMEDIATE difference in air flow into the cabin, it even smelled better. If this filter ever gets dirty Ira easy to clean and reinstall, paying for itself over time. Do yourself a favor and pick one of these up, you will not be sorry.
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Reviewed in the United States on October 20, 2025
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Verified Purchase
Perfect condition strong material
Phoenix, US
★★★★★ 5
Perfect fit
Size: 9.6" x 11.1" x 2.2"
Perfect fit on my 2022 jeep wagoner
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Reviewed in the United States on May 20, 2026
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Robert
Lake Worth, US
★★★★★ 5
Fit my Subaru Forester perfectly!
This fit my 2024 Subaru Forester perfectly. The filters exhibited a high quality construction and was packaged well. Installation was easy and saved me a lot of $ vs. having my dealer install an OEM filter.
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Reviewed in the United States on December 16, 2025

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