Quicksilver 816761Q17 Spark Plug Wire Kit for MerCruiser V8 Thunderbolt IV

The Quicksilver 816761Q17 Spark Plug Wire Kit is an OEM replacement ignition wire set designed specifically for V8 MerCruiser engines with Thunderbolt IV ignition systems. This complete spark plug wire kit fits left-hand (LH) 305 and 350 cubic inch displacement engines manufactured between 1993 and 2003.

Key Features:

• Complete set of precision-fitted spark plug wires with integrated boots at spark plug ends
• Engineered wire lengths tailored to reach each plug location without excess slack or tension
• Marine-grade construction designed to withstand moisture, salt spray, and extreme temperature variations
• Built for reliable ignition performance in demanding marine engine environments
• OEM-quality replacement ensuring proper fit and electrical resistance specifications

Quicksilver original equipment parts are backed by over 65 years of marine engineering expertise from Mercury Marine. This spark plug wire kit delivers the efficiency, endurance, and durability required for dependable marine engine operation, ensuring optimal spark delivery and engine performance.