Ignition Wire Kit 84-863656A05
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Quicksilver Ignition Wire Kit 84-863656A05
The Quicksilver 84-863656A05 Ignition Wire Kit is an original equipment manufacturer (OEM) spark plug wire set purpose-built for MerCruiser sterndrive V8 engines. It fits GM V-8 305/350 CID engines with Thunderbolt IV and V ignition systems produced from 2004 through 2010, covering both the 5.0L and 5.7L TKS configurations including ski and MIE applications. The kit includes a complete set of blue spark plug wires with boots at the spark plug end, each wire individually tailored to reach the correct plug location without modification.
Designed to meet Mercury Marine's rigorous standards, these wires are built for efficiency, endurance, and durability in the harsh marine engine environment. As a genuine Quicksilver part—Quicksilver being the premier supplier of Mercury Marine original equipment replacement parts—this kit ensures proper fit and reliable ignition performance. The kit is compatible with a wide range of MerCruiser V8 small block engine serial ranges and is suitable for use with a Thunderbolt electronic distributor.
Key Features
- Complete set of blue spark plug wires with boots at the spark plug end
- Tailored wire lengths to reach each correct plug location
- Designed for efficiency, endurance, and durability in marine environments
- Compatible with GM V-8 305/350 CID engines with Thunderbolt IV & V ignition, 2004–2010
- Fits MerCruiser sterndrive V8 5.0L and 5.7L TKS engines
- Genuine OEM Quicksilver replacement part
- Alternate part numbers: 84863656A05, 863656A05
- Current production status
