Sierra 18-8811-1 Premium MagForce Marine Spark Plug Wire Set

The Sierra 18-8811-1 Premium MagForce Marine Spark Plug Wire Set is engineered to deliver maximum ignition performance for 4-cylinder marine engines with digital ignition systems. This complete wire set is designed for Mercury Marine and OMC stern drive applications, featuring advanced construction that protects sensitive marine electronics from interference.

Advanced MagForce Technology:

• Kevlar core construction provides maximum durability and long service life
• Magnetic suppression core with spiral-wound conductor delivers the hottest spark while eliminating RFI and EMI interference
• 8mm high-tear-strength silicone jacket protects up to 500°F, providing superior high-temperature protection
• Durable stainless steel wound conductor ensures maximum horsepower and engine performance
• Reinforcing mesh and aramid inner core increase tensile strength and conductor integrity

Marine-Grade Terminals and Boots:

• Corrosion-resistant stainless steel snap-lock terminals ensure maximum conductivity and prevent terminal pull-off
• Pure silicone boots create a sealed barrier against heat, dirt, and moisture
• Pre-greased silicone insulators for easier installation and superior protection
• OE-style boots deliver factory-fit performance

This premium wire set is "electronics friendly," protecting GPS, VHF, Loran, and electronic engine controls from radio frequency and electromagnetic interference. The kit includes 5 wires and is compatible with GM, Volvo, Mercruiser, and OMC marine engine applications. Meets or exceeds original equipment performance standards while improving engine efficiency and fuel economy.