94305-40283 Spring (4x28) Pin - Overview. The 94305-40283 Spring (4x28) Pin is a critical component within Honda marine engine systems. This 4mm x 28mm spring pin serves as a reliable fastening element, supporting the mechanical system by securely holding components together to maintain the functionality and durability of your marine equipment. Crafted to meet factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Feature