Features and Benefits:
- High quality oversized steel alloy insert will repair other inserts that fail and has no ill effects from heat transfer.
- For use on 4.6L, 5.4L and 6.8 V-10 Ford Triton Two Valve Engines
- For use on years 1996 to 2003.
- Part No. 389-100 Replacement Inserts
- spark plug size: m14-1.25