Florida HSMV Form 82103 Affidavit for Change of Motor

Florida HSMV Form 82103 Affidavit for Change of Motor – If you own a classic or antique motor vehicle manufactured before 1955 and need to replace the engine, Florida requires official documentation to update the title. The Florida Department of Highway Safety and Motor Vehicles (FLHSMV) provides Form HSMV 82103, the Affidavit for Change of Motor, specifically for this purpose. This guide explains what the form is, when you need it, how to complete it, required supporting documents, fees, and where to submit it.

What Is Florida HSMV Form 82103?

Form HSMV 82103 is an official affidavit issued by the Florida Department of Highway Safety and Motor Vehicles, Division of Motorist Services. It is used exclusively for motor vehicles manufactured prior to 1955. Vehicles from this era were traditionally titled using the engine/motor number rather than a modern Vehicle Identification Number (VIN).

When the original motor is removed and a different engine is installed, the title must be corrected so the vehicle’s official identification matches the installed motor. The form allows the registered owner to swear under penalty of perjury that the motor has been changed and to provide the details of the replacement engine.

You can download the official current version of the form directly from the FLHSMV website:

Download Florida HSMV Form 82103 (PDF)

When Do You Need Form HSMV 82103?

You must complete and submit Form HSMV 82103 in the following situations:

You are the current Florida title holder and have replaced the motor in a pre-1955 vehicle.
You are purchasing a pre-1955 vehicle that already has (or will have) a replacement motor installed before the title is transferred into your name.
You are bringing an out-of-state titled pre-1955 vehicle into Florida and the motor has been (or is being) replaced.

Vehicles manufactured in 1955 or later use a VIN and follow different procedures. Form 82103 applies only to vehicles built before 1955.

How to Complete Florida Form 82103?

The form is straightforward. Accurately fill in the following information:

Full printed name of the vehicle owner
Year, make, and body type of the vehicle
Original (removed) engine/motor number
Florida title number (if currently titled in Florida)
New (installed) engine/motor number
Check the appropriate box indicating whether the replacement motor came from a vehicle manufactured prior to 1955 or from a 1955-or-later vehicle
Owner’s date of birth, Florida driver license / FEID / suffix number, email address, and full residential address
Printed name, signature, and date signed by the owner

The form contains a declaration under penalties of perjury. All information must be true and accurate.

Required Supporting Documents

According to FLHSMV Procedure TL-50, the following documentation is typically required when applying for a corrected or new title involving a change of motor on a pre-1955 vehicle:

Completed and signed Form HSMV 82103
The current Florida Certificate of Title (or out-of-state proof of ownership)
A bill of sale or receipt for the replacement motor that shows the year, make, and motor number of the engine. The receipt must include the seller’s name, address, and signature (notarization is not required)
Lien satisfaction documents if any liens appear on the current title
Form HSMV 82040 (Application for Certificate of Title) when a transfer of ownership is also involved
Vehicle Identification Number and Odometer Verification (Form HSMV 82042) or equivalent verification when required for out-of-state vehicles
Proof of Florida sales tax payment or exemption information (if applicable)
Applicable title fees

If the replacement motor was manufactured in 1955 or later, FLHSMV will assign an “FLA” number that will appear on the new title as the vehicle identification number. The year and make of the vehicle itself will not change.

Where to Submit Form HSMV 82103?

Submit the completed Form 82103 and all supporting documents to your local Florida county tax collector’s office or authorized license plate agency. Do not mail the form directly to Tallahassee unless specifically instructed.

Find your nearest office using the official FLHSMV locator:

Florida Tax Collector / License Plate Agency Office Locator

Many offices require appointments for title transactions. Check your local tax collector’s website for current appointment procedures, accepted payment methods, and any county-specific requirements.

Title Fees and Processing

Title fees for a change-of-motor transaction generally fall under standard Florida title transfer or correction fees. Typical base electronic title fees range from approximately $75–$86 depending on whether the vehicle is already titled in Florida or is coming from out of state. Additional charges may include:

Paper title mailing fee (approximately $2.50)
Fast (same-day) title service (approximately $10) where available
Lien recording fee if applicable
Late title fee if ownership transfer deadlines are missed

Exact fees can vary slightly by county due to local service charges. Confirm current amounts with your local tax collector before your appointment. Official statewide fee information is available on the FLHSMV Fees page.

Important Tips for Classic Car Owners

Keep detailed records and the original bill of sale for any engine purchase. Clear documentation speeds up processing.
If you are restoring a vehicle and plan multiple modifications (body changes, etc.), you may also need Form HSMV 82100 (Affidavit for Change/Alteration of Body).
Florida titles for pre-1955 vehicles are issued based on the motor number when the replacement motor is also pre-1955. Later motors receive an assigned FLA number.
Always use the most current version of Form 82103. The official form is revised periodically (the version available as of the latest FLHSMV publication is Rev. 10/11).

Official Resources and Downloads

For the most accurate and up-to-date requirements, always refer to official FLHSMV publications and your local county tax collector. Requirements can be updated, and county offices may have additional local procedures.