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The Champion 346 Copper Plus Spark Plug (RC10YC4) is designed to provide reliable ignition, smooth engine operation, and efficient combustion. Featuring a copper core and nickel alloy electrode, it ensures consistent spark, effective heat dissipation, and resistance to fouling. Ideal for automotive and small engine applications, the RC10YC4 delivers dependable cold starts, improved fuel efficiency, and long-lasting performance.
🔧 Copper core ensures strong spark and optimal heat transfer
🔧 Nickel alloy electrode resists fouling, corrosion, and wear
🔧 Pre-gapped for easy and accurate installation
🔧 Provides smooth idle and reliable cold-start performance
Brand & Part Number: Champion 346 (RC10YC4)
Material: Copper Core with Nickel Alloy Electrode
Thread Size: 14mm
Reach: 0.75 in. (19mm)
Gap: Pre-gapped (~0.035 in.)
Ensure reliable ignition and optimal engine performance with Champion 346 Copper Plus Spark Plugs! 🔧