- Compatibility: This ignition switch is designed as a direct replacement for Mercury Sierra models, ensuring a seamless fit for your boat. - Interchangeable Part Numbers: Verify compatibility with your existing setup using part numbers 8717009A2, 8717009A5, MP410702, MP410701, and MP41070. This helps you avoid any mismatches before purchase. - Easy Installation: Experience hassle-free installation with this ignition switch. Its straightforward design allows for quick setup or removal, minimizing downtime and getting you back on the water faster. - Quality Craftsmanship: Crafted with precision, this outboard motor control switch guarantees reliable performance and a perfect fit for compatible boat models. This attention to detail enhances durability and functionality. Practical Applications: - Boating Season Prep: Ideal for getting your boat ready for the season, ensuring your ignition system is functioning optimally. - Quick Replacement: Perfect for emergency repairs on the water or during routine maintenance, allowing you to swiftly address ignition issues without extensive downtime. - Upgrade Option: Enhance the performance of older Mercury Sierra models by replacing worn-out ignition switches with this reliable component. This ignition switch provides the reliability and performance you need for a smooth boating experience.