Skip to Main Content Skip to Footer Links
Error occured! Please reload the page and try again

You have no saved vehicles.

Add a vehicle to quickly see parts that fit your make and model

Vehicle added


Find parts for the selected vehicle:

View Vehicles
Are you sure you want to delete this vehicle?

    Add Another Vehicle

    Add a vehicle

    MSD Ignition Dual Ignition Adapter, Ford Coil-On-Plug

    Part #89121
    • Product Details

      Part No.89121

      Warranty Details (90 DAY REPLACEMENT IF DEFECTIVE)

      In some instances when you install an MSD Ignition, the factory ECU may not be able to distinguish when the coil fires. This is the signal that is also responsible for firing the injectors (or the tachometer), which may cause a no-run situation. The dual channel ignition adapter simulates the original coil trigger signal thus allowing the ECU to properly trigger both the tach and fuel injection with the MSD DIS ignition installed. In most cases, the adapter plugs directly into the MSD's harness. For vehicles using an MSD DIS-2 ignition, only one PN 8912 is required. For DIS-4 applications, two PN 8912's are required. For Ford coil -on-plug and 2003 and newer vehicles PN 89121 is required.

      Product Features:

      • Has dual channel ignition adapter
      • For use with MSD DIS ignition control
      • Two coil pack applications
      • Simulates the coil signal
      • Allows ECU to properly trigger
      • Ford coil-on-plug for 03 and newer vehicles

    • Read Review

    • Q & A

      Ask a question, get answers from real customers and in-house experts.
    Disclaimer: We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.