Denso Iridium TT Spark Plug 4703
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Durability of an OE style plug combined with power & torque of high performance.
- 0.7 mm needle tip ground electrode, promotes higher spark energy and less heat quenching
- DENSO patented 360 degree laser welding process, ensuring exceptional quality bond and structural strength with the iridium center electrode
- 0.4 mm iridium center electrode, world's smallest diameter that maximizes firing potential
- DENSO patented optimized iridium rhodium alloy formula, highest concentration of iridium versus competitors for greater durability.