Bosch FGR7DQP+ Platinum +4 Spark Plug (Pack of 1) Platinum firing pin and four yttrium enhanced ground electrodes provide 2X longer service life compared to standard copper plugs Surface air gap design provides better ignitability and performance 360 continuous laser welding to fuse the platinum firing pin for increased durability 4 year performance satisfaction guarantee Original equipment, pre-gapped replacement delivering optimum fit, form and function