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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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NGK Spark Plugs NGK Iridium IX Spark Plug 14 mm Thread 0.689" Reach Tapered Seat - Stock Number 7397
Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.708 in Reach, Tapered Seat, Stock Number 7397, Resistor, Each
Item #: NGKTR5IX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 2477, Resistor, Each
Item #: NGKZFR5FIX-11
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 2667, Resistor, Each
Item #: NGKBKR7EIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 2668, Resistor, Each
Item #: NGKBKR8EIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 2669, Resistor, Each
Item #: NGKBKR9EIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 3764, Resistor, Each
Item #: NGKBKR6EIX-11
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 3981, Resistor, Each
Item #: NGKBR9EIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 4055, Resistor, Each
Item #: NGKBPR7EIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 5044, Resistor, Each
Item #: NGKBR8EIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6418, Resistor, Each
Item #: NGKBKR6EIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6441, Resistor, Each
Item #: NGKZFR6FIX-11
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6801, Resistor, Each
Item #: NGKBR10EIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6853, Resistor, Each
Item #: NGKBPR9EIX
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Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6988, Resistor, Each
Item #: NGKBKR7EIX-11
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NGK Spark Plugs NGK Iridium IX Spark Plug 14 mm Thread 0.984" Reach Tapered Seat - Stock Number 4344
Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.984 in Reach, Tapered Seat, Stock Number 4344, Resistor, Each
Item #: NGKLTR5IX-11
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NGK Spark Plugs NGK Iridium IX Spark Plug 14 mm Thread 0.984" Reach Tapered Seat - Stock Number 6509
Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.984 in Reach, Tapered Seat, Stock Number 6509, Resistor, Each
Item #: NGKLTR6IX-11
Condition:
New
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NGK Spark Plugs NGK Iridium IX Spark Plug 14 mm Thread 0.985" Reach Tapered Seat - Stock Number 2314
Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.985 in Reach, Tapered Seat, Stock Number 2314, Resistor, Each
Item #: NGKLZTR5AIX-13
Condition:
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Price: $20.36
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NGK Spark Plugs NGK Iridium IX Spark Plug 14 mm Thread 0.985" Reach Tapered Seat - Stock Number 2315
Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.985 in Reach, Tapered Seat, Stock Number 2315, Resistor, Each
Item #: NGKLZTR6AIX-13
Condition:
New
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Price: $20.36
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NGK Spark Plugs NGK Iridium IX Spark Plug 14 mm Thread 0.985" Reach Tapered Seat - Stock Number 5107
Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.985 in Reach, Tapered Seat, Stock Number 5107, Resistor, Each
Item #: NGKLZTR7AIX-13
Condition:
New
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Price: $20.36
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NGK Spark Plugs NGK Iridium IX Spark Plug 14 mm Thread 0.985" Reach Tapered Seat - Stock Number 6510
Description: Spark Plug, NGK Iridium IX, 14 mm Thread, 0.985 in Reach, Tapered Seat, Stock Number 6510, Resistor, Each
Item #: NGKLTR7IX-11
Condition:
New
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Orders over $149 ship free. Oversize items are excluded.
Price: $20.36
Sale: $8.97
Save: 56%
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Items 26-45 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