ACDelco Specialty Marine Spark Plugs are engineered to deliver reliable and efficient performance for a variety of marine applications, including jet boats, inboards, outboards, and personal watercraft. Built with a high-quality copper core, these plugs ensure excellent heat transfer and enhanced durability, even under varying loads. The ribbed suppressor seal minimizes the risk of spark flashover and misfires, while the nickel-chrome alloy sheathing protects the center electrode from corrosion, ensuring long-lasting performance in harsh marine environments. Featuring a standard center electrode design with a nickel tip, these spark plugs are designed for consistent ignition and stable operating temperatures. With a flat seat type and integrated resistor, they provide outstanding suppression characteristics, making them a dependable choice for maintaining peak engine performance.

Product Features:

• Copper core provides great heat transfer and helps maximize plug durability
• Ribbed suppressor seal extends resistance and helps prevent spark 'flash over' and misfires
• Nickel-chrome alloy sheathing to help prevent corrosion on center electrode
• Standard center electrode design ensures consistent ignition and stable operating temperatures for reliable engine performance.
• Integrated resistor offers excellent suppression characteristics, reducing electrical interference for smoother operation.