The Genuine GM Engine Balance Shaft Chain Tensioner 12626984 is a brand new part manufactured by GM Genuine Parts. This tensioner is designed specifically for engine balance shaft chain systems, ensuring proper tension and performance. With the OE/OEM part number 12626984, this product is a reliable replacement for your vehicle's engine balance shaft chain tensioner. Made by the original equipment manufacturer, you can trust in the quality and compatibility of this genuine GM part for your car or truck.