The Performance Tool W89733 14 pcs Aluminum Automotive Cooling System Radiator Pressure Tester Kit is a must-have for any mechanic or DIY enthusiast. This kit is designed to detect internal engine leaks caused by blown head gaskets and/or cracked blocks or heads, providing a quick and easy way to identify and diagnose engine problems. It also reveals external cooling system leaks, helping you identify and repair leaks before they cause damage to your engine or other components. The high-quality hand pump provides reliable and accurate pressure readings, while the 12 included adapters make it a versatile tool that can be used for a wide range of vehicles. Made from durable aluminum, this cooling system pressure tester kit is built to last and resist corrosion, ensuring long-lasting performance and reliability.