Tempest URHM38S Fine Wire Spark Plug is FAA/PMA approved as a new or replacement product. The manufacturer claims that their spark plugs are of the highest standard in the industry as well as being competitively priced.
The Tempest URHM38S Spark Plug features: High Conductivity Copper Core Center Electrode, High Alumina Ceramic Insulator, Proprietary Glass Center Seal, Nickel Finish, Nickel Ground Electrodes, Vacuum Infused Center Electrode, Hot-Lock Assembly, and a Harness Wire Contact. Spark plugs are shipped in factory sealed plastic cases. Opened spark plug cases make the spark plugs non-returnable. Please do not open any spark plug until you are sure you have received the correct spark plugs for your application.
Supplied with a 8130-3 Authorised Release Certificate if required