Candles with directional side electrode

These are candles that have a special technique in their manufacturing process where the electrothe side of the spark plug is welded in a defined position, so that it is always in the same position in the combustion chamber. This technology aims to optimize the engine's combustion process. For these spark plugs, their tightening torque must be strictly followed.

They can be produced in platinum or iridium, depending on the manufacturer's specification.
There is no re-installation specification for these spark plugs, that is, the recommendation when we remove the spark plug is to replace the spark plug. This is due to the fact that once the spark plug sealing washer is deformed, we cannot guarantee its correct position in the combustion chamber.