As seen in the video, this armature converts your 6V wiper motor to run on 12V power. Don't burn up your wiper motor by forgetting to change your wiper motor armature for a new 12V unit, and don't rely on a volt-a-drop system either. This works on SWF motors (as seen in video) up through 58-66 bugs and 55-64 buses. Do it the right way from the start and enjoy an extra 10% off the regular retail price. Discount reflected in price. (Regular price: $39).