Spark Plugs: Fine Wire or Massive? - Aviation Consumer
Servicing the Fine Wire Spark Plug | There's some miscommunication in the market that you actually can't service fine wire spark plugs. That's not the case for the Champion design - the...
ATS Spark Plug Gap Gauge | Aircraft Spruce
RHM40E Champion Spark Plugs - Knots 2U, Ltd.
Champion Aircraft Spark Plugs - New Used & Overhauled | QAA
Cessna Flyer Association - Mind the Gap: Spark Plug Preventive Maintenance