1965-1973 NGK Iridium Spark Plug, 260-289-302-351W-390-428
1964 to 1973 Mustang
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The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® 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.
- Fine Iridium tip ensures high durability and a consistently stable spark
- Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines
- Trivalent Metal Plating - superior anti-corrosion and anti-seizing properties
- Tapered ground electrode increases ignitability and minimizes quenching
- High-grade alumina silicate ceramic creates a stronger insulator to reduce dielectric punch-through (caused by spark exiting through side of ceramic)
- Cold-rolled threads prevent cross-threading and damage to cylinder heads
Manufactured / Distributed By: NGK
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