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 EnginesFor use on years 1996 to 2003.Part No. 389-100 Replacement Insertsspark plug size: m14-1.25
• Replacement Insert
• General Merchandise
• For use on 4.6L, 5.4L and 6.8 V-10 Ford Triton Two Valve Engines
• For use on years 1996 to 2003.

Replacement Insert.