90202-881-000 Lock (24Mm) Nut - Overview. The 90202-881-000 Lock (24Mm) Nut is an essential component designed for Honda marine engine systems. This lock nut plays a critical role in securely fastening components such as pulleys and timing mechanisms, ensuring the marine engine operates reliably under demanding conditions. Crafted to meet factory specifications, the 24mm lock nut integrates seamlessly with existing hardware, maintaining optimal performance and durability.. Key Features. Genuine