Image Item No. Description By  6216m  Electric, Motor 4.5V (Undetermined Type) X Catalog: Parts: Electric, Motor 1  2986  Electric, Motor 9V Micromotor 2 x 2 Catalog: Parts: Electric, Motor 1  99498c01  Electric, Motor 9V Power Functions Servo with Dark Bluish Gray Bottom Catalog: Parts: Electric, Motor 1  58121c01  Electric, Motor 9V Power Functions XL with Dark Bluish Gray Bottom Catalog: Parts: Electric, Motor 1