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Click here to be notified by email when TESTED 04-05 F-350 E-350 EXCURSION 6.0L ECU ECM ENGINE COMPUTER 4C3A-12A650-ATH DPU-252A becomes available.

  • Part Number

    4C3A-12A650-ATH & DPU-252A < You must have both sets of numbers on your original ecu part number sticker.

    ** The ecu we ship to you may not have this part number on it (It may have an updated part number sticker) but as long as you have both of these part #'s on your ecu it will program and work for your application. **


    This ecu will interchange or replace the following ecu part numbers for 2004 Ford F-250 F-350 F-450 F-550 Super Duty trucks, 2004 E-Series models and 2004 and 2005 Excursion 6.0L diesel models:

    4C3A-12A650-ATH & DPU-252A.

    Tech Notes

      ECU has been tested with our state of the art vehicle simulator which tests over 25 circuits of the ECU! Some of those are listed below:
    • Reference Voltage Good!
    • ECU powered up and has communication!
    • ECU fuel pump/mail relay tested good!
    • ECU injectors/coils tested good and much more!

    Install Notes

    • Disconnect the negative terminal of the battery. Make sure the battery connector is not touching the battery post.
    • Disconnect and remove the module to be replaced.
    • Install and connect the replacement module.
    • Connect the negative terminal of the battery.
    • See "Programming / PATS Security" below for additional install instructions.

    Programming / PATS Security

    For Plug and Play you must do the following three steps:

    Step 1: Match your part number per above fitment/interchange notes

    Step 2: Program the ecu to your VIN. You will need your local mechanic, Ford dealer or properly equipped Locksmith to program your VIN into the ecu. Without this you will get a "no start" condition.

    Step 3: If your vehicle has PATS security (Most Ford/Lincoln/Mercury's do) you must have your keys programmed. We recommend you have this done by your local locksmith. In most cases they will travel to your location and the process takes less than 30 minutes. No towing necessary and your local locksmith will be cheaper than a dealer. If your vehicle has PATS and is not programmed you will get a "no start". If your vehicle does not have PATS then after the VIN is programmed the ecu will be plug and play.

    Item Condition

    • Pins perfect, none are broken or bent
    • Mounting points good


    This ECM comes with a 90 day warranty from the date of purchase. Please keep a copy of your purchase record which we will send with your item.
  • Returns
    Most items come with a 30 day return period. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

    To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

    To complete your return, we require a receipt or proof of purchase.

    There are certain situations where no or only partial refunds are granted

    • Any item not in its original condition, is damaged or missing parts for reasons not due to our error
    • Any item that is returned more than 30 days after delivery

    Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

    If you are approved, then your refund will be processed, and a credit will automatically be applied to your original method of payment.

    Late or missing refunds (if applicable)
    If you haven’t received a refund yet, first check your bank account again.
    Next contact your bank. There is often some processing time before a refund is posted.
    If you’ve done all of this and you still have not received your refund yet, please contact us at

    Exchanges (if applicable)
    We only replace items if they are defective or damaged by our error. If you need to exchange it for the same item, send us an email at

    You will be responsible for paying for return shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of initial shipping will be deducted from your refund.

    Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

    If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

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