Compatible for 4. 6L, 5. 4L and 6. 8 V-10 Ford Triton Two Valve Engines
Material: High quality oversized steel alloy insert will repair other inserts that fail and has no ill effects from heat transfer.
Spark plug size: m14-1.25
For use on years 1996 to 2003 , Part No. 389-100 Replacement Inserts
Package Included:
4pcs Replacement Inserts Tool