Sierra 118-99328 Ignition Coil Primary Wire Set for Mercury Mariner L6 Outboard

The Sierra 118-99328 is a replacement ignition coil primary wire set engineered specifically for Mercury and Mariner inline six-cylinder (L6) marine outboard engines. This wire set provides the critical electrical connections between the ignition coils and the engine's ignition system, ensuring reliable spark delivery for optimal engine performance.

Key Features:

• Designed for Mercury and Mariner L6 outboard engines
• Premium marine-grade construction for superior durability in harsh saltwater and freshwater environments
• Replaces worn or damaged primary ignition wiring
• Manufactured to meet or exceed OEM specifications
• Sierra quality assurance for reliable performance

Primary ignition wires are essential components that carry low-voltage signals from the power pack or CDI unit to the ignition coils. Damaged or corroded primary wiring can cause misfires, poor performance, and difficult starting. This Sierra replacement wire set restores proper ignition system function and helps maintain peak engine efficiency.