[REPLACEMENT]High quality replacement spark plug for NGK CMR6A/1223 spark plugs, for Champion 978/RY4C RY4CT10, for Autolite 4194 spark plugs, for Brisk 3158 SR15C, OEM. Before ordering, check the model and dimensions to make sure it is the correct part. [QUANTITY & SIZE]Quantity: 2 candles, you can order as many as you want. Spark plug thread size: 10mm x 1mm, thread pitch: 9.5mm, hexagon size: 16mm, heat range: 6. [DURABLE]The high melting point electrode can be used to extend the service life, while the high alumina ceramic allows for better heat transfer and better electrical insulation. The spark plug has excellent corrosion resistance. [Easy Replacement]Spark plugs are small engine parts and are easy to disassemble, repair, and replace. Long service life and helps improve fuel consumption and engine efficiency. The ideal candle set for you. You will receive 2 pieces of candles [SATISFACTION GUARANTEE]If for any reason you are not satisfied, you can request a replacement or a full refund. If you have any questions, please feel free to contact us. We will show you our sincere attitude and satisfactory solution. Shop with confidence.