Older vehicles and small engines running a conventional ignition benefit from a plug that's stayed unchanged for decades rather than one redesigned around a different electrode material. This Champion RJ8C nickel plug keeps the same copper-core, nickel alloy construction that's been factory equipment on these applications all along.

Champion 871 Copper Plus Spark Plug Features:

• RJ8C plug type.
• 14mm thread.
• 3/8 in. reach.
• Resistor, gasket seat.
• Heat range 8.
• Nickel alloy electrodes with a copper core center electrode.
• Sold individually.