Sierra 18-8836-1 Marine Spark Plug Wire Set for Delco HEI Ignition

The Sierra 18-8836-1 is a premium marine spark plug wire set engineered specifically for MerCruiser 350 MAG MPI SKI engines equipped with Delco HEI ignition systems. This complete wire set delivers maximum voltage from the coil to the spark plugs while protecting sensitive electronic devices from radio-frequency and electromagnetic interference.

Key Features:

• High-tear-strength silicone jacket protects to 500°F for superior heat resistance
• Unique mag wire conductor delivers the hottest spark for optimal engine performance
• Reinforcing mesh increases tensile strength and wire durability
• Aramid inner core ensures conductor integrity in harsh marine environments
• Pure silicone boots provide maximum heat and moisture protection
• Stainless steel snap-lock terminals resist corrosion and prevent terminal pull-off
• 8mm wire diameter for reliable current delivery

Wire Lengths Included:

• 1 spark plug wire at 29 inches
• 3 spark plug wires at 33 inches
• 2 spark plug wires at 39 inches
• 2 spark plug wires at 45 inches
• 1 coil wire at 16 inches

This set replaces Mercury MerCruiser OEM part numbers 84-816608Q71 and 84-816608A71, as well as Indmar 756002. Sierra marine ignition wires are designed to meet or exceed OEM specifications and are built to withstand the demanding marine environment.