Garmin Cable Grommet f/Network Cables

The Garmin Cable Grommet for Network Cables is a marine-grade sealing solution designed to protect installation holes drilled through boat hulls and mounting surfaces. After years on the water, any angler or boater knows that water intrusion through cable penetrations is one of the fastest ways to compromise electronics and create costly damage. This compact grommet eliminates that vulnerability by creating a weatherproof seal around network cables running to Garmin marine electronics, keeping saltwater, freshwater, and moisture out of critical component cavities.

Engineered to Garmin's marine standards, the cable grommet is constructed to withstand the harsh UV exposure, temperature cycling, and corrosive salt-air environment that characterize extended time on the water. Its compact design—measuring just 1 inch per side and weighing only 0.04 pounds—fits discreetly around network cables without adding bulk or interfering with cable routing. The grommet mounts securely around cable penetration holes, providing a permanent seal that prevents water migration while allowing safe passage for network connectivity between your chartplotter, sounder, radar, or other Garmin systems.

This cable grommet is compatible with Garmin GDL, GMR, GPSMAP, and GSD series devices—covering most modern marine electronics installations. Whether you're upgrading a single transducer cable, running a full network backbone for a integrated system, or performing routine maintenance, this grommet is an essential component for professional-grade boat wiring. Installation is straightforward: route your network cable through the drilled hole, seat the grommet firmly, and enjoy peace of mind knowing water cannot follow the cable path into your electronics enclosure.