ZEAJSRU Cylinder Leak Down Tester Kit, Dual Gauge Engine Cylinder Leakage Tester with Pressure Regulator, Spark Plug Adapters M10 M12 M14 M18, for Gasoline Engines (TU21 Blue)

1. Accurate Engine Leakage Detection Dual-gauge assembly measures both cylinder pressure and leakage rate at the same time, helping diagnose worn piston rings, worn valves, cracked cylinder walls, and blown head gaskets with higher accuracy.

2. Complete Kit with 4 Spark Plug Adapters Includes M10×1, M12×1.25, M14×1.25, and M18×1.5 adapters to fit most gasoline engines with standard spark plug threads. Suitable for motorcycles, cars, ATVs, UTVs, light trucks, and small engines.

3. Pressure Regulating Valve for Better Control Equipped with an adjustable regulator to manage air input from your air compressor (required 45–100 PSI). Pull out to use, push back to lock, and turn clockwise or counterclockwise to fine-tune air supply safely.

4. Multiple Hoses & Connectors for Hard-to-Reach Areas Comes with straight, bent, and extension connectors for easy access to deep or narrow spark-plug wells. High-quality rubber hoses ensure durability, leak resistance, and stable readings.

5. Durable Build & Portable Storage Case Constructed with aluminum alloy fittings, protective rubber-coated gauges, and brass couplers for long-term use in professional workshops. Packed in a blow-molded case for easy storage and transport.