Sierra 18-8807-1 Premium Marine Spark Plug Wire Set

The Sierra 18-8807-1 Premium Marine Spark Plug Wire Set is engineered specifically for marine applications, delivering maximum performance and reliability in harsh saltwater environments. Designed for Thunderbolt-type ignition systems, this professional-grade wire set provides superior conductivity and long-lasting durability.

Key Features:

• Kevlar® reinforced core provides exceptional durability and extended service life in demanding marine conditions
• Magnetic suppression core manufactured to exact specifications for your specific application
• Durable stainless steel wound conductor maximizes horsepower and optimizes engine performance
• Premium silicone jacketing and boots deliver superior high-temperature protection and resistance to engine bay heat
• Advanced RFI suppression technology protects sensitive marine electronics from interference
• Corrosion-resistant stainless steel terminals at both spark plug and distributor connections ensure maximum conductivity
• OE-style boots create a sealed barrier against heat, dirt, salt spray, and moisture intrusion
• Compatible with Thunderbolt-type ignition systems

This premium wire set combines marine-grade materials with precision engineering to ensure reliable ignition performance, improved fuel efficiency, and smooth engine operation. The corrosion-resistant construction makes it ideal for saltwater applications where standard automotive wire sets would quickly fail.