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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: 3/4" (19mm)
- Wrench/Socket Size:13/16"mm (21mm).
- Electrode gap is factory set to provide ease of installation - never requires adjustment
- Never requires gapping, the electrode gap is factory-set and never requires adjustment
- Provides ease of installation - never requires adjustment
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