- Wide Compatibility: This nut wrench is specifically designed for use with MerCruiser Alpha One, Bravo, Gen 1, Generation II, and Blackhawk models. Ensure compatibility with your specific model before purchase to meet your requirements and avoid returns. - OE Number Reference: To ensure a correct purchase, this wrench includes multiple OE reference numbers: 391-36235, 18-9803, and 91-17256. Confirm that the OE number aligns with your needs to prevent issues with incorrect orders. - Durable Construction: Made from high-strength, wear-resistant materials, this nut wrench is built for long-lasting performance. Its robust design makes it suitable for frequent use in challenging conditions. - User-Friendly Operation: This wrench is designed for simplicity and convenience. No complicated steps or additional tools are needed, allowing anyone to operate it easily. This straightforward approach saves time and effort, helping you complete tasks efficiently. Practical Applications: 1. Ideal for maintenance and repairs on MerCruiser engines, ensuring reliable performance and longevity. 2. Perfect for boat enthusiasts who require a dependable tool for quick adjustments and routine checks. 3. Useful for mechanics and technicians working with marine engines, providing ease of use and efficiency in a professional setting.