New Snow Blower Keys fits Many Brands 75000125 5 PackFive New Aftermarket Replacement Snow Blower Ignition Safety Keys 5 Pack This value 5 pack of aftermarket replacement snow blower ignition safety keys fits most Fits Briggs & Fits Stratton snow engines. The plastic safety key plugs into the engine's ignition circuit and must be in place for the engine to run removing it instantly kills the engine for safety. Keeping spares on hand means a lost or broken key never sidelines your machine mid winter.