4-Stroke Leak Down Tester

Designed to check the amount of cylinder leakage in a 4-stroke engine With an air source of 70 to 160 psi. this system will pressurize the cylinder with 60 psi. of air Gauge will register the total percentage of leakage past the rings, head gasket, intake and exhaust valves 10, 12, & 14mm spark plug thread hoses, regulator and gauge included Speeds up troubleshooting & helps to isolate bad components Made with high quality regulator and gauge. These cost more, but you get a better tool Includes convenient carrying box Instructions included Replaces H-D® tool #HD-35667-A