Drivers should consult their owner's manuals before searching for a vehicle's engine number. They can also obtain the engine number by decoding the vehicle's 17-digit identification number.
A vehicle's identification number contains important information such as the year, make and model of the vehicle or the engine number. To find this number, drivers should check the inside door jambs of the front seat doors, the lower left corner of the windshield or the steering column. The vehicle identification number is also listed in the owner's manual and on the vehicle's registration. To decode a vehicle's identification number, drivers can enter it online at DMV.org along with their zip codes to find the engine number.