Sierra Universal Spark Plug Boot - 8mm for Yamaha Outboard Motors - 18-5752

The Sierra Universal Spark Plug Boot 18-5752 is designed for reliable ignition performance in Yamaha outboard motors. Featuring an 8mm design, it provides a secure connection between the spark plug and ignition wire. Built for durability and easy installation, it helps ensure consistent engine starting and operation. Replaces Chris Craft 580339.