Check the listing for details. Performance Tool W80577 Compression Tester Spark Plug. Condition: New. Listed at 15.39 USD. The Performance Tool W80577 Compression Tester Spark Plug is a diagnostic tool used to measure the compression pressure in an engine cylinder. It is commonly used in automotive engine testing and troubleshooting. The compression tester features a spark plug adapter that replaces the spark plug, allowing for accurate and convenient compression testing. It is designed to provide reliable and consistent readings of the engine's compression levels. This tool is essential for automotive enthusiasts and professional mechanics for diagnosing engine performance issues. Features: Compression tester with spark plug adapter Used for measuring engine cylinder compression pressure Convenient and accurate testing through spark plug replacement Provides reliable and consistent compression readings Essential tool for engine testing and troubleshooting Specifications: Manufacturer: Performance Tool Model: W80577 Compatibility: Engine cylinders