Most stock fuses are 120V/15A. The important part for our use is the ##A rating, so 15 Amps. Some will put in a 20A fuse if they run a heavier spring or a motor they know will draw more current, where a 15A fuse will blow, but the 20A will chug along no problem.
And since it's bound to come up, you can buy the fuses from the automotive department at Canadian Tire. Not sure they have the 15A, but know they have 20A. Electronics stores will sell them too.