Champion Spark Plug, Shielded, Single Fine Wire Electrode, Iridium. This Spark plug has 18MM Thread size and 3/4-20 Shielding Thread at Ignition Harness Connecting End.
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.

PSS-KT-41 SEAL KIT, Piper Strut, Main | McFarlane Aviation, Inc.
AA313 Specialty Tires of America Aero Classic Aircraft Tire | Diamond Tread | 890x1250 S.C., 6 Ply, TL (Tubeless) 