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Copper core center electrode enables precise heat range control for optimal engine performance
Patented SAC-9 semiconductor resistor maximizes EMI and RFI suppression for cleaner ignition
Ultraseal coated shell provides enhanced rust prevention for longer lifespan
Aftermarket design offers reliable replacement for various vehicles
Made in the USA ensures quality manufacturing standards
Summarized by Shop
Copper Plus spark plug has a copper core center electrode that allows for accurate control of heat range, optimizing performance and longevity of the spark plug. Patented SAC-9 semi-conductor resistor for maximum EMI and RFI suppression. Patented Ultraseal™ coated shell for rust prevention. Made in the USA.