ALM Lawnmower Spark Plug | Almj17lm Easy start Compact design Fits most lawnmowers and cultivators ALM Lawnmower J19LM/J17LM Spark Plug | ALMJ19LM The ALM Lawnmore Spark plug delivers the fast and efficient starts that you need when powering up your lawn and garden equipment. Once operating, your outdoor power equipment will run smoothly without misfires that can occur with old and worn spark plugs. New spark plugs can also improve fuel economy and reduce emissions. Features Designed to operate over a much wider heat range than ordinary plugs Resists carbon buildup and pre-ignition Solid copper core for greater spark Longer insulator nose prevents fouling