Bosch Automotive (6720) OE Fine Wire Platinum Spark Plug - Pack of 4
- 360 Degree Continuous Laser Welded Platinum Center Electrode Featuring Fine Wire Design.
- Copper Core Ground Electrode. Large, Copper Core Center Electrode.
- Tapered Yttrium Enhanced Ground Electrode.
- Nickel-Plated Shell With Rolled Threads. Promotes Durability And Long Life.