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Spark Plugs

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  • Ground Electrode Tip Material - Platinum
  • Thread Reach (in) - 0.984 Inch
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NGK Iridium/Platinum Plug Number SILNAR9C7DG Spark Plug - 90644
Part #:
90644
Line:
NGK
1 Year Limited Warranty
Seat:   Tapered
Thread Size:   M12-1.25
Heat Range:   9

NGK Iridium/Platinum Plug Number LZNAR8AIX-P Spark Plug - 91164
Part #:
91164
Line:
NGK
1 Year Limited Warranty
Seat:   Tapered
Thread Size:   M12-1.25
Heat Range:   8

NGK Iridium/Platinum Plug Number LNAR8AIX-P Spark Plug - 97977
Part #:
97977
Line:
NGK
1 Year Limited Warranty
Seat:   Tapered
Thread Size:   M12-1.25
Heat Range:   8

Motorcraft Iridium/Platinum Spark Plug - SP539X
Part #:
SP539X
Line:
MOT
2 Year LIMITED WARRANTY
Seat:   Tapered
Thread Size:   M12
Heat Range:   8