Cylinder Leak Tester S-1257 (Diesel & Gas Engines)

Milton S-1257 is a professional cylinder leakage (leak-down) tester that connects to shop air to help diagnose combustion chamber faults. It helps pinpoint issues such as bad valves, worn piston rings, cracked cylinder walls, and blown gaskets. The unit is compatible with standard leakage testers, and includes combination 14 mm and 18 mm adapters to fit most engines.