UT4 Conversion Form

UT4 Conversion Form

Fill out the form below and press "Printable Form" for a printer friendly conversion form.

If you're converting to a DT402R throttle you will need a UR91 already on your layout as the UR91 has been discontinued.


Using the fields below, indicate the number of each throttle conversion you would like performed.

FromToRequires Simplex Radio w/UR91Requies Duplex Radio w/UR92PriceQty
Your Information

Enter your Digitrax Dealer ID (Leave blank if none)

Your Address
Your Contact Information
Payment Information
Credit Card Expiration
Credit Card Security Code


Fill out the form to the left, and press "Printable Form".

On the next page, you will be provided with more detailed printing and shipping instructions.


  • You must include payment for the throttle conversion. This can be by Visa or Mastercard.
  • We will return the converted throttles to you as soon as possible but delivery times cannot be guaranteed. For this reason, we recommend that you not send in all of your UT4 Series throttles at once so you can continue to operate your railroad while you are waiting on your converted throttles to be sent back to you.
  • UT4R throttles are simplex radio and work with a UR91 receiver. UT4D throttles are duplex radio and require a UR92 duplex transceiver. UT4R simplex radio throttles which are converted to UT4D duplex radio throttles will require a UR92 duplex transceiver for radio operation.