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NGK Single Electrode NON Resistor Spark Plug.

NGK Equivalent to the Bosch W6DC. Also see resister plugs WR6DCPLUS and WR7DCPLUS
NOTE: A plug with a low heat range number is a cold plug that quickly dissipates heat to the engine block and cooling system, while a high heat range is a hot plug that retains heat. By properly selecting the heat range of the plug, it ensures that the plug will operate between the plug’s designed operating range of 500-900 degrees Celsius. In this range, the spark plug will be self-cleaning, yet will not be hot enough to pre-ignite the air/fuel mixture

  • Thread Reach: 14mm / 13/16” (20.8mm).
  • Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest, most powerful spark for ultimate engine performance
  • Four yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for the most efficient combustion, plus the yttrium alloy ground electrodes reduce gap wear and oxidation for extended performance life
  • Features Ytrium Center electrode Benefit, Longer performance life V groove ground electrode, increased flame kernel propagation.
  • Electrode gap is factory set to provide ease of installation - never requires adjustment
  • Provides ease of installation - never requires adjustment

Vehicle Manufacturer: BMW
Application: BMW Airhead Models
Make/Model: BMW: R45, R50, R60, R65, R80, R90, R100
Manufacturer #: 12 12 1 338 146, 12 12 9 062 594
Power Rating: Heat Range 6 (9=Cold / 1=Hot)