4x NGK Iridium IX Spark Plug Stock 3691 Nickel Core Tip Taper Cut 0.040in TR8IX
NGK Iridium IX Spark Plugs Utilize A 0.6 Mm Iridium Center Electrode & Taper Cut Ground Electrode For Faster Starts, Better Acceleration & Improved Anti-Fouling. They Also Feature Trivalent Shell Plating For Superior Anti-Corrosive & Anti-Seizing Properties.
Item Specifics
| Model | NGK Iridium IX Spark Plug |
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| Reach | 17.5mm |
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| Gap Size | 0.040 in |
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| Hex Size | 5/8"" |
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| Quantity | 4 |
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| Seat Type | Tapered |
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| Resistance | 5K ohms |
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| Thread Diameter | 0.551 in |
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| Insulator Height | ISO |
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| Ground Configuration | Standard |
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| Manufacturer Heat Range | 8 |
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| Ground Electrode Quantity | 1 |
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| Ground Electrode Tip Design | Taper Cut |
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| Center Electrode Tip Material | Iridium |
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| Center Electrode Core Material | Copper Core |
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| Ground Electrode Core Material | Nickel Core |
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