Spark Plugs

The resistor located between the centre electrode and the centre axis enables Genuine Toyota Spark Plugs to prevent interference with on-board electronics, such as the radio. Non-genuine spark plugs without resistors fail to reduce interference with electronics.

Genuine Toyota Spark Plugs feature a U-Groove ground electrode which optimises engine performance, including starting, acceleration, fuel economy and power.

Toyota uses reliable materials and precise construction methods to create its spark plug housings. The result is stable performance and long life. Genuine Toyota Spark Plug housings also have a high rate of thermal conduction, ensuring that they are always at the ideal temperature. Without proper heat conduction, spark plugs tend to run too hot or too cold, causing engine misfires or pre-ignition which often leads to engine damage.

To work efficiency, engines must have spark plugs with the appropriate heating range. If the range is inappropriate, the plug may fail to ignite, resulting in poor starting, reduced performance on uphill climbs or when carrying a heavy load, and increased fuel consumption.