High-Performance Marine Engine Spark Plug 5115 IFR7F-4D
Precision-engineered for gas-powered commercial vehicles, this spark plug ensures optimal combustion efficiency with its durable iridium alloy core. The advanced 5115 IFR7F-4D design delivers superior ignition stability, reducing misfires and extending engine life in harsh marine environments. Crafted with a corrosion-resistant nickel-plated shell, it withstands high temperatures and saltwater exposure, ideal for boats, ferries, and industrial marine equipment. The tapered cut ground electrode minimizes voltage loss, enhancing fuel economy and throttle response. Perfect for fleet operators and marine mechanics seeking reliability—bulk orders available at unbeatable wholesale prices. Upgrade your engine’s performance with OEM-grade quality at unmatched global pricing.