Motorcraft SP-515 Spark Plug PZH14F - Superseded To SP546
- Every single spark plug is inspected throughout the entire shipping process for worry free, out-of-the-box performance..
- Designed with high quality materials to meet or exceed OEM Specifications..
- High melting point provides excellent resistance to erosion.
- Provide service intervals from 60,000 to 100,000 miles.