The first step in identifying which timing belt that you have is to look for identifying numbers and/or letters marked on the timing belt. These numbers indicate a standard trade size and will help in identifying the specifics of the cog belt. Also, by being able to identify the manufacturer and/or trade name on the timing belt will assist in the identification process.

Secondly, if there is no trade size indicated on the timing belt do the following:

Measure the width of the timing belt.

Note the construction of the timing belt. Rubber construction is extremely flexible while a polyurethane construction is plastic like and has little flexibility.

Measure the pitch. This is the distance in millimeters (mm) and/or inches between the center of the crown of one tooth and the center of the crown of the tooth adjacent to it.

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