Bosch (4478) WGR8DQP Platinum +4 Spark Plug, Pack of 1
- 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.
- 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.