Autolite HT15-4 PK Platinum High Spark Plug
- Platinum fine wire tip provides improved fuel efficiency, lower emissions and improved horsepower with virtually no gap erosion
- Patented, OE Design provides consistent optimal performance
- One-piece ground shield strap for improved heat transfer
- High Strength Steel technology to make replacement easy with special socket tool
- Designed specifically for Ford 4.6L, 5.4L and 6.8L 3-valve engines