Introducing the SPRING: VALVE 454 MKIV/GEN.V ST, a high-quality OEM replacement part by RECMAR for Mercruiser engines. Designed specifically for the 454 MKIV/GEN.V ST models, this valve spring ensures optimal performance and longevity for your marine engine. Crafted with precision and expertise, this valve spring is made from durable materials to withstand the harsh conditions of marine environments. It is engineered to provide the perfect amount of tension and flexibility, allowing for smooth and efficient valve operation. With the OEM 11502 part number, you can trust that this valve spring is a direct fit for your Mercruiser engine, ensuring a hassle-free installation process. Whether you are a professional mechanic or a DIY enthusiast, this product is designed to make your engine maintenance tasks easier and more efficient. Investing in this valve spring will not only enhance the performance of your Mercruiser engine but also contribute to its longevity. By maintaining proper valve operation, you can prevent costly repairs and extend the lifespan of your engine, ensuring many more enjoyable hours on the water. Choose the SPRING: VALVE 454 MKIV/GEN.V ST by RECMAR for Mercruiser and experience the difference in performance and reliability. Upgrade your marine engine today and enjoy worry-free boating adventures for years to come.