Leak Down Tester Tu-21 Engine Cylinder Leak Tester and Compression Gauge Set for Gasoline 4-Stroke Engines, 12mm or 14mm Spark Plug Compatible, DIY Auto Repair Diagnostic Tool for Quick Cylinder Leak Detection
✔️ Spark plug compatibility: 12mm/14mm, easy fuel-line setup
The Leak Down Tester and Compression Gauge Set is a handy diagnostic tool for gasoline 4-stroke engines. It helps you assess cylinder health by measuring leakage and compression, and is ideal for DIY auto repair, professional shops, and quick on-car diagnostics. Compatible with 12mm and 14mm spark plug sockets, it fits most engines with standard plugs.
✅ Dual-function tool combining cylinder leak-down tester and compression gauge
✅ Spark plug adapters for 12mm/14mm plugs to fit most gasoline engines
✅ Easy on-car setup: remove Schrader valve, connect hose, calibrate gauge
✅ Helps identify worn piston rings, valve leaks, cracked cylinders, or blown head gaskets
✅ Compact kit for tight clearance use in trucks and late-model cars
💡 What is a cylinder leak down tester used for in engine diagnostics? This handy tool helps you quickly assess engine cylinder health and pinpoint faults. - It measures leakage to reveal piston ring wear, valve leaks, or head gasket issues - It lets you compare a suspect cylinder to a known good cylinder on the same engine - It works with gasoline 4-stroke engines and 12mm/14mm spark plug sockets