Gunson Adaptor Kit 18 mm

Gunson Adaptor Kit 18 mm

• G4055e - Gun-son hi gauge and plug adaptor kit 14 mm to 18 mm thread G4055E
• A kit to convert the thread on the popular gun son and hi gauge compression tester
• Fits most sizes of modern spark plugs for modern and classic cars as well as motorcycles, garden machinery and boats

This kit converts the thread on Colortune and Hi Gauge Compression Tester to fit 18 mm spark plugs holes