Professional™ Starter (337-1077) by ACDelco®. Rated Power: 3.6 kW. Rotation: Clockwise. With 12-Tooth Pinion Gear. Voltage: 12V. When you need to match original equipment specifications in a replacement starter for your GM vehicle, look to ACDelco. Professional line includes brand-new Starters; either way, you are
getting a part that is made to perform like the factory part that came on your vehicle. There is no better way to keep that GM
peace of mind.