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Sold Two Per Set.
Tough, Smooth-working Reliable Switch.
Provides an Easy Way to Check Ignition Systems with Coil-On Plugs. Applications Include Ford, Chrysler, Mitsubishi, Nissan and More.
12mm Spark Plug Adapters for 20250 Compression Tester.
Gives a Visual Check of the Ignition System.
10mm Spark Plug Adapters for 20250 Compression Tester.
For Use with 20250 Compression Tester.
Easy reading gauge.
Quickly and Accurately Check Compression on Gasoline Engines.
Double-Ended for Both 14mm & 18mm Threads.
Fits Spark Plug Holes with Limited Access.
The Narrow Profile Allows Access to Spark Plug Holes in Confined Spaces.
Tests Spark Plugs, Spark Plug Wires and Coils Without Puncturing the Wire.