COMPATIBILITY: These adapters are designed to fit our compression tester W80579 and others with a 14mm x 1.25 male thread, providing compatibility with a range of testers.
Performance Tool W80577 Compression Tester Spark Plug - Compression Tester Sp...
Performance Tool W80577 - COMPRESSION TESTER SPARK PLUG ADAPTER SET
Performance Tool W80577 Compression Tester Spark Plug
Performance Tool W80577 Compression Tester Spark Plug, Gold
