Why fine wire? Fine wire platinum and iridium electrodes reduce firing voltage, increasing the lifetime of spark plugs and other components, ensuring reliable iginition.
Engineered for high performance and long life. Only Bosch Iridium delivers both.
Engineered for extended performance life and durability.
Engineered to provide you with improved ignitability and performance.
Bosch Super Plus, with a heavy-duty yttrium-enhanced copper core center electrode, is the longest lasting copper core spark plug on the market.
A fused iridium/platinum center electrode and surface air gap technology for optimum horsepower and exceptional performance life.
The best of the Bosch Platinum Series, with the most platinum, delivers maximum engine power for a longer performance life.
Quick starts, smooth acceleration and increased fuel efficiency.
Robert Bosch LLC guarantees satisfaction when you use Bosch Spark Plugs.
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