Product Info Catalog Automotive Repair & Parts Spark Plugs Marine Spark Plug, 821-1/L77JC4 Marine Spark Plug, 821-1/L77JC4 Request a Quote UPC: 37551011438 SKU: 315275 Model Number: 8211 Provides long life with the copper core center electrode. Champion Copper Plus Dependable Performance as the OE replacement spark plug Provides long life with the copper core center electrode Allow accurate control of heat range Optimize performance and longevity RFI & EMI suppression to not interfere with modern ignition systems
