Alliant 'AD' Injector

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Alliant 'AD' Injector - Ford 7.3L Powerstroke

Injector Description:

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.
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.

Write a Review

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  • 5
    Great product

    Posted by AJ on Dec 30th 2020

    Working great and performing as it should

  • 5
    2002 F250

    Posted by Matt Fischer on Feb 13th 2020

    Thanks Riffraff! These are replacement stock injectors for my 02'. Running like new again!

  • 4
    Alliant Injector Review

    Posted by William on Sep 13th 2019

    I installed a new 'AD' Injector on my 2001 F-250 SD. The quality of their products are good and exactly what I needed to get my truck on the road again.

  • 5

    Posted by James S on Jun 5th 2019

    Was quick to ship! Injectors work GReat

  • 5
    Alliant Injectors in 02 F250

    Posted by David on Mar 22nd 2019

    Injectors are fine. I might not have tackled the job without RiffRaff's instructions and support. Easy to understand, clear, concise, supporting photos... RiffRaff is more than just a parts seller!

  • 5
    Injector for 7.3

    Posted by Mont Bishop on Feb 21st 2019

    Every product I have purchased from Riff Raff Diesel has worked perfectly and they have had the best prices with exceptional service.

  • 5
    Top Notch on new injectors

    Posted by Robert Frost on Mar 13th 2018

    I had 354,800 miles on original stock injectors, they were a bit noisy and when winter came the last couple years it would have to warm up for 20 minutes before driving as a couple of the injectors were sticking. But once warmed up to operating temp it was fine.
    The new injectors are awesome as she is really smooth now and much quieter, really runs like new. I have a fuel rail crossover and oil rail crossover from Clay, "and per Clay if you have this you do not need the long lead AE injector for the number 8 cylinder' You can have all AD injectors. You will not find a better price on new Alliant injectors, Clay has the best service as well. If your doing injector cups too look at my review under injector cups.

  • 5
    AD & AE injectors

    Posted by Unknown on Nov 13th 2017

    Quality product. Good price. Would recommend to anyone.

  • 5
    Fuel mileage jumped 3 mpg

    Posted by Brad Holmes on Apr 28th 2017

    With 307k miles on original injectors I was having rough starts when oil was cold. Replaced all of the injectors and now it starts and runs like it's new. Fuel mileage also jumped 3 mpg back to 18.5 mpg hiway like it used to be!