Genuine OEM Land Rover Spark Plug, part number LR123892. This critical component is responsible for igniting the air-fuel mixture within the engine's combustion chambers, initiating the power stroke. It is installed directly into the cylinder head. Featuring advanced electrode materials and design, this spark plug ensures consistent, powerful sparks for optimal engine performance and fuel efficiency. Using genuine OEM spark plugs guarantees the correct heat range, electrode gap, and material quality for reliable ignition and long engine life.