HeliCoil 5396-14 Sav-A-Thread HT Spark Plug Thread Repair Kit for Ford 5.4L & 4.6L Engines - Fix Stripped Threads in Cylinder Heads for F150, Mustang, Expedition

From the Manufacturer M14 x 1.25 spark plug thread repair. Designed for -Inch Half Thread-Inch (HT) spark plug applications in 4.6 and 5.4 liter engines. Allows access to deep ports. Positive mechanical locking feature ensures insert stability; insert will not come out. Utilizing the piloted reamer tap, alignment is maintained and pre-drilling is not required. Note: It is recommended that the head be removed before installation to ensure chips do not enter the cylinder. Kit contents: Piloted reamer tap (1)Steel installation tool (1)Expanding tool (1)M14x1.25 HT inserts (12).

M14 x 1.25 spark plug thread repair

Designed for -Inch Half Thread-Inch (HT) spark plug applications in 4.6 and 5.4 liter engines

Allows access to deep ports

Positive mechanical locking feature ensures insert stability; insert will not come out

Utilizing the piloted reamer tap, alignment is maintained and pre-drilling is not required. Note It is recommended that the head be removed before installation to ensure chips do not enter the cylinder