Lisle 20530 10mm Spark Plug Adapter for Compression Tester Single Use Batteries Applies all popular brands of

Applies all popular brands of undercoat in any viscosity

HOOD PROP ROD - 16" to 40"

48 inches length - standard 4mm banana plug

CTA Tools 2830 12

Lisle 20530 10mm Spark Plug Adapter for Compression Tester Single Use Batteries Applies all popular brands ofThe 20530 is a 10mm thread adapter. Adapts to M14X1. 25 6H Threads.?? The Lisle 20530 Spark Plug Adapter is a replacement adapter designed for 10mm spark plugs and is compatible with the Lisle Compression Tester # LST 20250. It comes with an O ring for a secure fit and accurate compression readings.??One reviewer says this fitting works perfectly when attached and provides plenty of threads to complete a test.