Champion REM40E Spark Plug

Description

Fouled or worn spark plugs are one of the most common causes of rough running engines and hard starts in general-aviation aircraft. The Champion REM40E addresses this with a proven resistor-type design that delivers reliable ignition performance across typical cruise and climb power settings. These plugs are widely used in legacy Continental and Lycoming engines where maintaining consistent spark quality is essential for smooth operation and fuel efficiency.

When replacing plugs, always verify cross-reference charts against your engine’s current part number and maintenance manual—spark plug selection is critical for proper engine function. Champion REM40E plugs feature the traditional semiprecious-metal design trusted in piston-aircraft engines for decades. Keep a spare set on board, check gaps per manufacturer specs during pre-flight, and replace them according to your aircraft’s inspection intervals.