The camshaft is an important part of your vehicle; it helps certain elements of your car run smoothly, from regulating the timing of your valves to bringing in fresh air to kick out exhaust. If you need a new camshaft, it can be a bit confusing to put together the identification number of the camshaft you need for your car. However, if you break the number down one piece at a time, it becomes easier to identify.
Find the model prefix. The model prefix is the first part of the camshaft number, and it describes the vehicle that the camshaft is meant for. For instance, the number for a Toyota 3SGE would be CS 3SGE.