Spark Plugs

Double Iridium Spark Plugs

Bosch Double Iridium Spark Plugs are engineered to deliver both high performance and long life, representing the best of OE spark plug technology. The ultra-fine wire design and laser welded tapered ground electrode deliver optimum performance, while the iridium center electrode and platinum ground electrode help it to go the distance. Unlock the performance in your engine with Bosch Double Iridium Spark Plugs.

Double Iridium Pin-To-Pin

Bosch Double Iridium Pin-To-Pin Spark Plugs represent the best of original equipment (OE) spark plug technology and are manufactured to be OE equivalent in fit, form and function. The ultra-fine wire design firing pin and ground electrode pin provide higher performance.

Iridium Spark Plugs

Bosch Iridium Spark Plugs are engineered to deliver both high performance and long life, representing the best of OE spark plug technology. The ultra-fine wire iridium center electrode pin delivers best performance. Unlock the performance in your engine with Bosch Iridium Spark Plugs.

Double Platinum Spark Plugs

Bosch Double Platinum Spark Plugs are engineered for up to 3X longer service life.*

Platinum Spark Plugs

Bosch Platinum Spark Plugs are engineered for up to 2X longer service life.*

Super Plus Spark Plugs

Bosch Super Plus, with a heavy-duty yttrium-enhanced copper core center electrode, is a long lasting copper core spark plug.

Silver Spark Plugs

Bosch Silver Spark Plugs are engineered for older European performance cars, as well as some motorcycle applications. These types of vehicle engines operate at particularly high combustion chamber temperatures, increasing the wear on the electrodes. Bosch uses silver alloys in the center electrode tip to resist wear and improve spark plug efficiency.

Platinum+4 Spark Plugs

Bosch Platinum+4 Spark Plugs deliver smoother acceleration, top fuel economy and ultimate engine performance. Bosch Platinum+4 Spark Plugs reach self-cleaning temperatures faster for quicker starts, smoother acceleration and increased fuel efficiency.