Mercury V8 Spark Plug Wire Set
$303.21
Genuine Mercury Marine V8 spark plug wire set for selected 4.6L FourStroke outboard engines. Features marine-grade construction, improved durability and OEM fitment. Supersedes Mercury part numbers 8M0159115 and 8M0142697.
The Mercury Marine 8M0238746 Spark Plug Wire Set is a genuine Mercury OEM ignition lead kit designed for Mercury 4.6L V8 FourStroke outboard engines. This complete wire set delivers high-voltage ignition current from the ignition coils to the spark plugs, ensuring reliable starting, smooth idle quality and consistent engine performance throughout the RPM range.
Manufactured to Mercury Marine specifications, the wire set features marine-grade insulation, corrosion-resistant terminals and high-quality suppression technology to minimise electrical interference while maintaining maximum spark energy. The leads are designed to withstand the heat, moisture and vibration encountered in marine engine compartments.
The 8M0238746 wire set supersedes earlier Mercury part numbers 8M0159115 and 8M0142697, making it the current OEM replacement for many Mercury V8 outboard applications. Upgrading to the latest design provides improved retention, durability and ignition performance.
Common symptoms of worn ignition leads include hard starting, engine misfires, rough idle, reduced fuel economy and poor acceleration. Replacing spark plug wires at recommended service intervals helps maintain optimum engine efficiency and reliability.
