The Volvo/Mack ASET Water Pump with 5.3" Pulley is a reliable and practical solution for your vehicle's cooling system. With its OEM Pump Number 315GC3193 and OEM Casting Number 2739-17, this water pump is designed to fit most makes and models. Its 5.3" pulley ensures efficient operation, providing optimal cooling performance. This water pump is sold individually, making it a convenient choice for replacing your old or damaged pump. Trust in the quality and functionality of the Volvo/Mack ASET Water Pump with 5.3" Pulley to keep your engine running smoothly.