Premium Marine Spark Plug Wire Set Part Number 18-8837-1

Magnetic Suppression Core manufactured for your specific application.
Kevlar^® core for maximum durability and long life
Durable stainless steel wound conductor for maximum horsepower and engine performance
Premium silicone jacketing and boots for the ultimate in high temperature protection
Superior RFI suppression for the most sensitive electronic system
Corrosion resistant stainless steel spark plug and distributor terminals for maximum conductivity.
OE style boots provide a sealed barrier against heat, dirt and moisture
Thunderbolt type ignition

• Application : Mercruiser - 420, 425, 465, 500 & 500 Bulldog, 525SC, 600SC, 8 cylinder, Thunderbolt ignition
• Replaces OEM # : 84-847701Q7