The Vintage Mac Tools Engine Vacuum Gauge and Fuel Pump Tester is a diagnostic service tool specifically designed for gasoline engines in passenger vehicles. Made in the United States, this product includes a gauge for measuring engine vacuum and testing fuel pump functionality. While it does not come with a warranty, it is a reliable and trusted tool for ensuring the proper performance of your vehicle's engine. This tester is a valuable asset for automotive enthusiasts and professionals looking to diagnose and solve issues with their engine's vacuum and fuel pump systems.