Sierra 118-28092 Marine Spark Plug Wire Set

The Sierra 118-28092 is a premium marine-grade spark plug wire set engineered for V4 outboard engines. Designed to meet or exceed OEM ignition performance standards, this set delivers reliable, consistent spark energy from the coil to the plug — keeping your outboard running at peak efficiency on the water.

Key Features:

• Kevlar core for maximum durability and long service life
• Stainless steel wound conductor for maximum horsepower and engine performance
• Premium silicone jacketing and boots for superior high-temperature protection
• Corrosion-resistant stainless steel spark plug terminals for maximum conductivity
• Superior RFI suppression to protect sensitive onboard electronics
• Meets or exceeds original equipment manufacturer (OEM) specifications
• Set includes wires for a 4-cylinder (V4) outboard configuration

Sierra's marine spark plug wire sets are purpose-built for the harsh saltwater and freshwater marine environment. The combination of a reinforced Kevlar inner core, silicone outer jacket, and stainless steel terminals ensures reliable ignition performance, reduced radio frequency interference, and long-lasting corrosion resistance — making this an ideal replacement for worn or damaged factory ignition wires.