Home / Lawn & Garden / Parts / Spark Plug J17LM Spark Plug J17LM$4.86 Price may not be up-to-date. In Stock View Product Part Number: J17LM Brand: CHAMPION SPARK PLUG Seller: Sears PartsDirect Categories: Lawn & Garden, Parts Not Returnable Description This spark plug (part number J17LM) is for lawn and garden equipment engines. Spark plug J17LM produces the spark that ignites the fuel in the engine. Wear work gloves to protect your hands when installing this part.