Sierra 18-8842-1 Marine Spark Plug Wire Set for 8 Cylinder OMC Engines

The Sierra 18-8842-1 is a premium marine spark plug wire set designed specifically for 8-cylinder OMC stern drive engines with conventional ignition systems. This complete wire set replaces OMC part number 503753 and delivers reliable ignition performance in harsh marine environments.

Key Features:

• Kevlar core construction for maximum durability and long service life
• High-tear-strength silicone jacket provides protection up to 500°F
• Stainless steel wound conductor delivers consistent, hot spark delivery
• Electronics-friendly design protects GPS, VHF, and other onboard electronics from RFI and EMI interference
• Pure silicone boots with pre-applied dielectric grease for moisture and heat protection
• Stainless steel snap-lock terminals resist corrosion in saltwater environments

Wire Set Includes:

• One coil wire 9 inches in length
• Two spark plug wires 30 inches in length
• One spark plug wire 31 inches in length
• One spark plug wire 40 inches in length

Sierra wire sets are engineered to meet or exceed OEM specifications and work with any original equipment or aftermarket ignition system. The reinforced construction ensures conductor integrity while improving engine efficiency and fuel economy.