Cylinder Leak Down Tester Kit Efficient leak tester for gasoline engines. Quickly identify the cause of engine leakage such as worn piston rings, valves, or blown head gaskets, for fast and accurate repairs! This compressed-air-operated leak tester measures leakage in percentage, making it easy to precisely locate leaks. Suitable for gasoline engines with spark plug threads of 10, 12, 14 or 18 mm. For gasoline engines with 10, 12, 14 or 18 mm spark plug threads Compressed air operated for reliable results Full control with dual gauges for pressure and leakage Complete kit with adapters and hoses for easy connection Perfect for workshops, racing teams and enthusiasts who want professional results in the garage The kit includes: Metric adapters: M10x1,25mm (O-ring) M12x1.25 mm (O-ring) M18x1,5mm (O-ring) Adapter hose  M14 x 1,5mm (O-ring) Pressure / leakage gauge Regulator Extension hose Male/Female quick couplers Weight: 1.3 kg