Bosch Fine Wire Double Iridium Spark Plugs - Engine Builder Magazine

Mar 09, 2025

The new Bosch Double Iridium Spark Plug represents the latest in OE fine wire technology. Its ultra-fine wire design and laser-welded tapered ground electrode help deliver increased performance, while the iridium firing pin and ground electrode inlay provide four times longer service life compared to standard copper core plugs.

Features of the Bosch Double Iridium Spark Plug include:

Double Iridium benefits include:

Bosch OE Fine Wire Double Iridium Spark Plugs are competitively priced and come with purchase protection including a seven-year consumer performance satisfaction guarantee and a 12-month professional technician warranty. Full information regarding the warranty can be found at www.BoschAutoParts.com/en/support/spark-plug-guarantee.