Ensure your Yamaha F4 runs smoothly with the Sierra International Crankcase Gasket (part number 18-60518). Designed specifically for models from 2002 to 2008, this high-quality gasket provides a reliable seal, preventing oil leaks and maintaining optimal engine performance. Crafted from durable materials, it withstands harsh marine environments, ensuring longevity and reliability. Easy to install, this gasket is a perfect choice for DIY enthusiasts and professional mechanics alike. Keep your engine in top shape and enjoy worry-free boating with this essential component!