County Council Branding

Change of Engine

The registered owner of a vehicle will need to present themselves in person at the motor taxation public counter to make an application to record a change of engine in relation to their vehicle.

The following documentation is required:

  • Completed Declaration Form RF111 – Change of Particulars – available at .
  • Section 5 of Form RF111 must be completed and stamped by a Main Dealer.
  • The same Main Dealer must submit a letter on their headed paper confirming:
    • Registration number of vehicle;
    • that they have fitted the replacement engine OR that they have inspected the replacement engine;
    • the replacement Engine Number;
    • the cubic capacity of the replacement engine;
    • the type of fuel of the replacement engine;
    • signature of a representative of the Main Dealer and the signatory’s position held within the Main Dealership.
  • The Vehicle Registration Certificate (V.R.C.) must be surrendered (a new V.R.C. will issue upon successful processing of an application)
  • Original Insurance Certificate
  • Photo I.D. e.g. Driving Licence or Passport

Please note applications will not be accepted through the post or third parties.