Champion Spark Plug 861EZ-8PK EZ Start SE Plug with ECO-Core Carded, 8 Pack Fine wire electrodes concentrate spark energy for easier starting in all weather Booster gap delivers maximum voltage where it's needed most Projected core nose provides maximum fouling resistance for long, dependable life For small engines Replaces J19LM, RJ19LOM, J17LM & RJ17LM