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The improved throttle response, superior anti-fouling and high-ignitability makes NGK Iridium IX® Spark Plugs ideal for the performance enthusiast. Iridium’s extremely high melting point is perfectly suited to today’s high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.
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Description: Spark Plug, NGK Iridium IX, 10 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 3521, Resistor, Each
Item #: NGKCR9EIX
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Description: Spark Plug, NGK Iridium IX, 10 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 3739, Resistor, Each
Item #: NGKCR8EHIX-9
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Description: Spark Plug, NGK Iridium IX, 10 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 9198, Resistor, Each
Item #: NGKCPR7EAIX-9
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 2115, Resistor, Each
Item #: NGKBPR5EIX-11
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 2707, Resistor, Each
Item #: NGKBR9ECMIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6341, Resistor, Each
Item #: NGKBKR5EIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6664, Resistor, Each
Item #: NGKBR7EIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6684, Resistor, Each
Item #: NGKBPR8EIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 26.5 mm Reach, Gasket Seat, Stock Number 4469, Resistor, Each
Item #: NGKLFR5AIX-11
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 26.5 mm Reach, Gasket Seat, Stock Number 6619, Resistor, Each
Item #: NGKLFR6AIX-11
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.460 in Reach, Tapered Seat, Stock Number 7401, Resistor, Each
Item #: NGKUR4IX
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Description: Spark Plug, NGK Iridium IX, 12 mm Thread, 26.5 mm Reach, Tapered Seat, Stock Number 7554, Resistor, Each
Item #: NGKZNAR7AIX
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Description: Spark Plug, NGK Laser Iridium IX, 12 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6681, Resistor, Each
Item #: NGKDR8EIX
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Description: Spark Plug, NGK Laser Iridium IX, 14 mm Thread, 26.5 mm Reach, Gasket Seat, Stock Number 2309, Resistor, Each
Item #: NGKLFR7AIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.460 in Reach, Tapered Seat, Stock Number 7177, Resistor, Each
Item #: NGKUR5IX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.460 in Reach, Tapered Seat, Stock Number 7384, Resistor, Each
Item #: NGKUR6IX
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Description: Spark Plug, NGK Iridium IX, 18 mm Thread, 0.370 in Reach, Tapered Seat, Stock Number 7510, Resistor, Each
Item #: NGKWR5IX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.460 in Reach, Tapered Seat, Stock Number 7516, Resistor, Each
Item #: NGKYR5IX
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Description: Spark Plug, NGK Iridium IX, 10 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 4218, Resistor, Each
Item #: NGKCR8EIX
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Description: Spark Plug, NGK Iridium IX, 12 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 5545, Resistor, Each
Item #: NGKDPR9EIX-9
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NGK Spark Plugs NGK Iridium IX Spark Plug 14 mm Thread 0.689" Reach Tapered Seat - Stock Number 3689
Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.708 in Reach, Tapered Seat, Stock Number 3689, Resistor, Each
Item #: NGKTR6IX
Condition:
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Price: $20.36
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NGK Spark Plugs NGK Iridium IX Spark Plug 14 mm Thread 0.689" Reach Tapered Seat - Stock Number 3690
Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.708 in Reach, Tapered Seat, Stock Number 3690, Resistor, Each
Item #: NGKTR7IX
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NGK Spark Plugs NGK Iridium IX Spark Plug 14 mm Thread 0.689" Reach Tapered Seat - Stock Number 3691
Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.708 in Reach, Tapered Seat, Stock Number 3691, Resistor, Each
Item #: NGKTR8IX
Condition:
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Price: $20.36
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NGK Spark Plugs NGK Iridium IX Spark Plug 14 mm Thread 0.689" Reach Tapered Seat - Stock Number 7164
Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.689 in Reach, Tapered Seat, Stock Number 7164, Resistor, Each
Item #: NGKTR55IX
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NGK Spark Plugs NGK Iridium IX Spark Plug 14 mm Thread 0.689" Reach Tapered Seat - Stock Number 7316
Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.709 in Reach, Tapered Seat, Stock Number 7316, Resistor, Each
Item #: NGKTR55-1IX
Condition:
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Items 1-25 of 45
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More About NGK Iridium IX Spark Plugs
The improved throttle response, superior anti-fouling and high-ignitability makes NGK Iridium IX® Spark Plugs ideal for the performance enthusiast. Iridium’s extremely high melting point is perfectly suited to today’s high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.
Features:
Fine iridium tip ensures high durability and a consistently stable spark
Trivalent metal plating for superior anti-corrosion and anti-seizing properties
Outstanding acceleration, high fuel efficiency and durability