Compression tester extension which is compatible with M14 compression tester hoses and gauges. Feature an M14 thread and M12 1.25mm end that allows compression testing on Ford EcoBoost and most modern engines. Extra-long 230mm extension that enables access to deep-seated spark plugs. COMPRESSION TESTER EXTENSION Compatible with M14 compression tester hoses and gauges. FEATURES AN M14 THREAD AND M12 1.25MM END Allows compression testing on Ford EcoBoost and most modern engines. EXTRA-LONG 230MM EXTENSION Enables access to deep-seated spark plugs.
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