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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