The NEW ARNOLD FF-10 FIRST FIRE SMALL ENGINE SPARK PLUG is a high-quality, brand new spark plug designed specifically for small engines. Manufactured by First Fire, this spark plug is a reliable replacement for Champion J17LM, J19LM, RJ17LM, and RJ19LM models. With its manufacturer part number FF10 and country of origin in China, this spark plug is sure to provide optimal ignition for your car or truck engine.