Champion Spark Plug, Shielded, Single Fine Wire Electrode, Iridium. This Spark plug has 14MM Thread size and M18 X 1 Shielding Thread at Ignition Harness Connecting End. (Free Ground Shipping in 48 US States on Orders of 4 or More)
Please note: Opened Plastic Spark Plug Packages are not returnable. Please confirm you have received the correct spark plugs for your application before opening package.