Bosch Fusion Spark Plugs, 4503

Bosch Fusion Spark Plugs 4503 are a good choice to keep your vehicle running at its best. They have a special design which helps to ensure their life for up to 3.5 times longer than the competition. The most impressive feature is fused iridium and a platinum center electrode. It is housed inside of an extended insulator nose. These components work together to reach a self-cleaning temperature within seconds. These Bosch spark plugs come with four yttrium-enhanced ground electrodes. They help deliver optimum horsepower and exceptional performance for your engine. Another major feature is the revolutionary surface air gap firing technology. The plugs have factory pre-set gaps that add ease to the installation process and provide no need for adjustment. Each of these premium components and design elements work together to produce a powerful, long-lasting spark. When you have Bosch Fusion Spark Plugs 4503 installed in your vehicle, you will have performance you can rely on.

Bosch Fusion Spark Plugs, 4503: Fused iridium and platinum center electrode Centered into an extended insulator nose reaches self-cleaning temperature only seconds after starting Improved resistance to fouling, reliable starts Provides exceptional wear resistance to meet OE specifications for long life iridium spark plugs Revolutionary surface air gap firing technology Bosch's unique 4-ground electrode design that delivers the most powerful spark for the most efficient combustion and optimum horsepower without increasing the voltage requirement Four yttrium-enhanced ground electrodes resist spark plug wear and oxidation for exceptional performance life Factory pre-set gaps provide ease of installation which never requires adjustment Auto spark plugs are made for power and reliability