![Heat Range | Basic Knowledge | SPARK PLUG | Automotive Service Parts and Accessories | DENSO Global Website Heat Range | Basic Knowledge | SPARK PLUG | Automotive Service Parts and Accessories | DENSO Global Website](https://www.denso.com/global/en/products-and-services/automotive-service-parts-and-accessories/plug/basic/heatrange/images/heatrange_img_03.png)
Heat Range | Basic Knowledge | SPARK PLUG | Automotive Service Parts and Accessories | DENSO Global Website
Autolite Spark Plugs - The topic of today's discussion is spark plug heat ranges. Heat Range is the term used to describe the rate of heat transfer from the firing tip of
![Heat Range | Basic Knowledge | SPARK PLUG | Automotive Service Parts and Accessories | DENSO Global Website Heat Range | Basic Knowledge | SPARK PLUG | Automotive Service Parts and Accessories | DENSO Global Website](https://www.denso.com/global/en/products-and-services/automotive-service-parts-and-accessories/plug/basic/heatrange/images/heatrange_img_02.png)