* The manufacturer of the air compressor. If the air compressor is still under warranty, you may be able to get a replacement motor from the manufacturer for free.
* An auto parts store. Many auto parts stores sell replacement motors for 12v air compressors.
* A hardware store. Some hardware stores also sell replacement motors for 12v air compressors.
* Online. You can also find replacement motors for 12v air compressors online.
When you are looking for a replacement motor, be sure to check the following:
* The voltage. The replacement motor must be the same voltage as the original motor.
* The power. The replacement motor must have the same or greater power than the original motor.
* The size. The replacement motor must be the same size as the original motor.
If you are not sure which replacement motor to choose, you can consult with a mechanic or an auto parts store employee.