17913-ZVD-000 Throttle Cable Grom - Overview. The 17913-ZVD-000 Throttle Cable Grom is a small but vital component within Honda marine engine systems. This grommet serves as a sealing and protective element where the throttle cable passes through the engine housing. By preventing water, dirt, and debris from entering the engine compartment, it preserves the integrity and smooth operation of the throttle system. Designed to integrate seamlessly with the throttle system, it ensures long-lasting fu