Description
Complete Wire Set for MerCruiser Thunderbolt V6
Brand New Ignition Wire Set for MerCruisers. This wire set meets or exceeds OEM specifications.
Replaces part # 84-816761Q16, 84-813720A11, 503751, 18-8810-1
When should you replace your wires?
- Plug wires or boots are cracked, dried out, or torn
- Engine is difficult to start, espcially in cold or damp weather
- Fuel economy has decreased
- Engine stalls or idles rough
- Poor acceleration
Fits: MerCruiser 4.3L engines from 1985-93 with Thunderbolt ignition systems
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