Sierra 18-8819-1 Premium Marine Spark Plug Wire 7 Inch

The Sierra 18-8819-1 is a premium 7-inch marine spark plug wire engineered for reliable ignition performance in harsh marine environments. Designed specifically for Thunderbolt-type ignition systems, this high-quality replacement wire delivers optimal conductivity and durability for your boat's engine.

Key Features:

• Kevlar® reinforced core provides maximum durability and extended service life in demanding marine conditions
• Durable stainless steel wound conductor ensures maximum horsepower and consistent engine performance
• Magnetic suppression core manufactured for precise application-specific fit and function
• Premium silicone jacketing and boots withstand extreme heat and provide superior protection
• Superior RFI (Radio Frequency Interference) suppression protects sensitive marine electronics and navigation systems
• Corrosion-resistant stainless steel terminals at both spark plug and distributor ends for maximum conductivity
• OE-style boots create a sealed barrier against heat, dirt, moisture, and saltwater intrusion
• Compatible with Thunderbolt-type ignition systems

This 7-inch spark plug wire is built to meet or exceed OEM specifications, making it an ideal replacement part for maintaining peak engine performance and reliability on the water.