Who can tell me how to change the engine number when replacing the engine block of a motor vehicle? What information does the vehicle management office need?

The vehicle management office handles it.

To replace the engine block of a motor vehicle, it is necessary to carry the original owner's identity certificate, driving license, motor vehicle registration certificate, new engine block invoice, certificate of repair shop with third-class qualification or above with the vehicle, fill out the Application Form for Motor Vehicle Change Registration (official seal is required for the unit vehicle), print it on the new engine block according to the original steel seal number, and check it at the inspection window of the vehicle management office.

We should know that replacing the engine is the same as changing the color of the body, changing the body or frame, changing the whole vehicle due to quality problems, changing the operating motor vehicle into a non-operating motor vehicle or changing the use nature of a non-operating motor vehicle.

Extended data:

It should be noted that when a motor vehicle replaces the unnumbered engine cylinder, it can bring the new engine cylinder such as the owner's identity certificate, driving license, registration certificate and cylinder body certificate to the vehicle management office before loading, and issue a power of attorney to engrave the original engine number after verification. After loading, there is no need for online inspection, and the above procedures can be used to go to the vehicle management office for change registration.

If the replacement cylinder has the serial number at the factory time, you should check whether the engine model is consistent by yourself or at the vehicle management office, and then go to the safety inspection agency for online inspection. After obtaining the test report, the vehicle owner's identity certificate, driving license, registration certificate and engine certificate shall be presented to the vehicle management office for change registration.

Zhejiang government service network-motor vehicle change registration (filing)