94401-16150 Key (16X15) - Overview. The 94401-16150 Key (16X15) is a genuine Honda Woodruff key designed to support various Honda marine engine systems. This precision-engineered key is crucial for maintaining proper alignment between the crankshaft and flywheel, ensuring optimal engine timing and reliable mechanical motion. As an OEM component, it guarantees exact fitment, matching factory specifications and exact dimensions to maintain durable performance within your equipment.. Key Features.