The K-D 2521 Fuel-O-Vac Fuel Pump Pressure Gauge is a pressure tester designed for gasoline engines, suitable for motorcycles, passenger vehicles, and heavy-duty/commercial vehicles. This unit includes a gauge hook and has a maximum psi of 60 psi. Made in the United States, this pressure gauge is a must-have for detecting leaks in your vehicle's fuel system. Perfect for troubleshooting and maintenance tasks, this unit from Fuel O Vac is a reliable and efficient tool for ensuring optimal performance of your vehicle's fuel pump.