Check the listing for details. KUNTEC Cylinder Leak Down Tester Engine Compression Diagnostics Test Tool Kit. Condition: New. Listed at 32.29 USD. Product Description 🌈Cylinder Leak Down Tester Compression Test Kit🌈 ⭐Designed to detect a variety of engine faults, including worn piston rings, worn valves, cracked cylinder walls, and blown head gaskets ⭐This is a high quality TU-21 cylinder leak detector, including double gauge system ⭐Easily check the amount of leakage and locate leaks area in an engine cylinder to help determine the sourcer ⭐Suitable for use on any petrol engine with 12 or 14mm spark plugs, and ideal for testing trucks & late model cars where clearance is minimal ⭐Check the amount of leakage in 4-stroke engines ⭐Pressure gauge with dual scale reads from 0 to 100 PSI and 0 to 7 Bar, shows pressure in PSI and Bar and percentage of cylinder leakage 💡Package include💡 Female quick connector Metric adapter M12x1.25(with o-ring) Metric adapter M14x1.5(with o-ring) Extension hose Gauge base Leakage gauge Pressure gauge Male quick connector Regulator Adapter hose 💡Easy to Use💡 Remove the Schrader valve and turn the regulator off before applying shop air Install the hose to the cylinder, the unit to an air supply, calibrate the leak gauge, and connect the unit to the cylinder hose Diagnosis is made by observing the amount of leakage indicated on the cylinder leakage gauge and listening for leakage at various points of the car system