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BOSCH 7909 Copper with Nickel Spark Plug - Single
Heavy-duty yttrium enhanced nickel-copper center electrode ensures superior reliability and durability for up to 50% longer performance life vs. standard copper plugs
Copper core provides broader heat range to resist pre-ignition and deposit build-up
Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize - saving time
Angled, ribbed insulator design prevents misfire due to flash-over
Metal glass fused resistor maximizes interference suppression
Compatible with select vehicles (Note: engine affects fitment - verify specific fitment details with amazon confirmed fit fit checker above): BMW: 1986-88 325,1984-87 325e,1986-87 325es,1987-91 325i,1987-91 325is,1988-91 325iX,1989-90 525i,1982-88 528e
Bosch Super Plus spark plug has a premium copper core plus yttrium enhanced center electrode providing extended performance life over conventional copper core spark plugs.