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Spark Plugs

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  • Thread Reach (mm) - 10.95mm
  • Thread Reach (in) - 0.431 Inch
  • Resistor Plug - Yes

Heat Range

Center Electrode Core Material

Thread Reach (in)

Resistor Plug

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Autolite Copper Core Spark Plug - 23
Part #:
23
Line:
ATO
2 Year LIMITED WARRANTY
Seat:   Tapered
Thread Size:   M14-1.25
Heat Range:   11

Motorcraft Copper Spark Plug - SP415AX
Part #:
SP415AX
Line:
MOT
2 Year LIMITED WARRANTY
Seat:   Tapered
Thread Size:   M14
Heat Range:   275