Home / Lawn & Garden / Parts / Generator Motor Brush 66386GS Generator Motor Brush 66386GS$32.82 Price may not be up-to-date. In Stock View Product Part Number: 66386GS Brand: GENERAC PORTABLE PROD. LLC Seller: Sears PartsDirect Categories: Lawn & Garden, Parts Not Returnable Description This motor brush (part number 66386GS) is for generators. Motor brush 66386GS transfers electric current to the spinning armature in the motor. Wear work gloves to protect your hands when installing this part.