This is a genuine GM radiator, model 20979496, suitable for direct replacement in Chevrolet Malibu engines. The part includes only reference #1 on the diagram and is made from high-quality materials for reliable engine cooling. It is an OE/OEM part and has a manufacturer part number of 20979496. The radiator is designed for the engine compartment and is a perfect fit for 2013 Malibu models. It comes with a SKU number of 20979496 and is ideal for those looking to replace their engine cooling components. Buy with confidence knowing that this radiator is made by a trusted brand and will provide reliable performance for your vehicle.