• Marine Spark Plugs
• Superior construction for optimum performance
• Helps maintain consistent performance, better fuel economy & lower emissions
• Highly pure silicate insulator
• Triple gasket sealing
• Solid copper core
• Longer insulator nose
• Double-dipped zinc chromate shell
• See the following site for an application guide - www.ngksparkplugs.com
• Weight: Approximately 1 pounds to 14.2 pounds depending on size selected.
• Shipping Dimensions: Approximately 4 x 1 x 1 inches to 5 x 4 x 2 inches depending on size selected.