Quicksilver 816608Q61 Red Spark Plug Wire Set for GM V8 454-502 CID Marine Engines

The Quicksilver 816608Q61 is a complete spark plug wire set designed specifically for vintage GM V8 marine engines (454-502 cubic inch displacement) equipped with Thunderbolt IV and V ignition systems from 1981 to 1997. This precision-engineered wire kit ensures reliable ignition performance in demanding marine environments.

Key Features:

• Complete set of 8 high-visibility red ignition wires
• Pre-fitted boots at spark plug ends for secure connections
• Custom-tailored lengths to reach correct plug locations on GM V8 454-502 CID engines
• Engineered for maximum efficiency, endurance, and durability in harsh marine conditions
• Designed specifically for Thunderbolt IV and V ignition systems
• Meets OEM specifications for proper fit and performance

As a Mercury Marine original equipment manufacturer, Quicksilver delivers over 65 years of marine engineering expertise. These spark plug wires are built to withstand the unique challenges of the marine environment, including moisture, vibration, salt spray, and temperature extremes, ensuring dependable engine performance season after season.