Volvo S90/V90 » Spark Plugs

Bosch Super Copper Core Plugs
Heavy-duty copper core center electrode delivers superior durability and reliability. Nickel chromium ground electrode means consistent performance and prolonged service life. Nickel-plated rolled threads mean complete anti-seize and corrosion protection. Metal glass-fused center electrode seal prevents combustion leakage. Angular, five-ribbed insulator design prevents misfire due to current leakage.