NGK Single Iridium Spark Plug Box of 4 (UR45IX)

The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® the ideal choice for any performance enthusiast. Iridium's high melting point is perfectly suited to today's high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.

Additional Information

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability.

Application Summary

AMERICAN MOTORS 1983-80; BUICK 1987-75; CADILLAC 1982-80; CHECKER 1982-75; CHEV 1985-70; FORD 1996-75; GMC 1984-78; JEEP 1983-80; LINCOLN 1992-74; MERCURY 1993-74; OLDSMOBILE 1987-75; PONT 1987-75

Part Type

Spark Plug

Product Overview

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

• Fine iridium tip ensures durable and consistent spark
• Outstanding acceleration, high fuel efficiency and durability
• RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
• Trivalent metal plating for superior anti-corrosion and anti-seizing properties

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Product Details

Reference Information