Champion 861ECO/5861 Spark Plug, For: Champion 861ECO/5861 J19LM, RJ19LM and RJ17LM Small Engines, 0.551 in Thread (Pack of 8)

Fine wire center and side electrodes concentrates spark energy for easier starts under all conditions. Booster gap delivers maximum firing voltage. Projected core nose offers peak performance. #5843 is equivalent to #CJ8, CJ7Y, CJ8Y, RCJ8, RCJ7Y, RCJ8Y, J8C and RJ8C. #5846 is equivalent to #CJ14. #5861 is equivalent to #J19LM, RJ19LM, J17LM and RJ17LM.