Alliant 'AC' Injector

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Alliant 'AC' Injector - Ford 7.3L Powerstroke

AA - '94-'97 Non-California trucks. They are all 90cc injectors and are single shots. 
AB - '97 California, and all Early '99 trucks. Split Shot injectors that flow 130cc of fuel.
AC - Came in high torque version of the T444E and didn't come in any Powerstrokes. They have the same internals as the AB injectors with the exception of the single shot plunger and barrel and are 160cc. Custom Tunes Required*
AD - These are found in all late '99-'03 Powerstrokes and T444Es, and are a Split Shot Injector
AE - Long lead AD injector that was used to cure a "cackle" issue.

Core Injector Shipping Options:

  • Pre-Ship Core - This allows you to ship your used cores in first without have to pay a core charge. Your order will ship once your cores are received.
  • Return After Install - This is the quickest option to get your injectors. You pay the core fee up front and then it is refunded once the core are return and received back. 


*We must receive the injectors or a tracking number in 30 days or a $50 penalty will apply.

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  • 5
    Great all around choice for injectors

    Posted by Roger on Aug 11th 2020

    These injectors are the best addition to my truck yet! They SOLVED my low Icp pressure problem and made a nice increase in performance. They truly made my truck run better than new. If you want a really reliable truck with a little bump in performance then these AC codes are your best option. Dont be afraid of the fact that they require custom tuning. There are a lot of good diy options for that now if you get a hydra and buy some custom tunes. These injectors are the best improvement I have made to my truck and riffraff was a great place to get them!

  • 5

    Posted by Jason on Apr 1st 2020

    Wish these injectors came stock with the truck as they are so much better!!! Its awesome we can still buy brand new injectors for these truck. Going to buy another set for my other truck

  • 5
    Defiantly recommend these to a friend

    Posted by Ed on Oct 30th 2019

    Very simple to install going by installation instructions.
    Definitely a great performance install.

  • 5
    2000 7.3 Powerstroke

    Posted by Joe Hunsaker on Feb 22nd 2019

    Another great experience dealing with RiffRaff. Fast Shipping, great packaging, exactly what I ordered. As for the injectors, these were the best price I had found anywhere. Install went smoothly and with a few hundred miles on them, they are performing great. My MPG is back up to where it should be and I have a nice little boost in power when I want it. If your looking for a big power increase then you'll probably want to go bigger than these, but that being said there is a very noticeable increase with these injectors. THESE DO REQUIRE CUSTOME TUNING ON SUPER DUTIES. One thing I could not find on the website is what warranty these Alliant injectors have. Install video at:

  • 5
    Great bang for the buck!

    Posted by Lance on Feb 18th 2019

    These are awesome injectors for the money. Noticeable power increase, throttle response and fuel economy seems to be better as well. Only issue was start up and working out all air out of oil system, Need a custom tune to run.

  • 5
    Injector brand swap

    Posted by Jim on Jun 27th 2018

    I had purchased a set of reman injectors and didn't get the 2800psi of oil pressure the tuner was asking for, swap the injectors for new one an 3050. Very happy, Great injectors

  • 5
    Great customer service!

    Posted by Unknown on Jun 12th 2018

    This is how the truck should have come from the factory. Customer service and shipping was spot on as always. Thanks again Clay!

  • 5
    Awesome customer service!!!

    Posted by Unknown on Apr 19th 2018

    AC injecters put new life in my 1999 f350 7,3 !!!
    Customer service is awesome!!!! Thanks again Clay!!

  • 5
    Should have bought these sooner

    Posted by Unknown on Feb 3rd 2018

    Engine has nearly 300,000 miles. After installing these it’s like having a new engine. I preshipped my cores. Postal service lost one core. Clay worked with me and got me up and going. I would recommend RiffRaff to anyone. Great business to deal with.