Sonar Accessories & Spares

Marine Sonar Accessories & Replacement Parts

Accessories, cables, covers, and replacement parts for marine fishfinders and sonar systems. Our collection includes components for Simrad, Lowrance, Raymarine, Garmin, and Furuno sonar systems.

Keep your fishfinder operating reliably with genuine accessories including protective covers, mounting hardware, extension cables, and replacement transducers.

Sonar Maintenance: Part of our Sonar & Fishfinders collection. Accessories for sonar plotters, sonar modules, and transducers. Essential for maintaining your fishfinding equipment.

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Keeping a fishfinder running reliably

Most sonar problems come down to connections rather than the unit itself. A transducer cable chafed against a bracket, a corroded power connector, or a cover left off during winter storage will cause more grief than any electronic fault. Extension cables let you relocate a black box away from the transducer run without cutting and re-terminating the original plug, which matters because most transducer connectors are not designed to be re-crimped in the field.

When ordering a replacement part, match it to the exact model and connector type rather than just the brand: Simrad, Lowrance, Raymarine, Garmin and Furuno each use several different transducer plug styles across their ranges, and even within one brand these have changed over generations. If you are not sure which cover, bracket or cable your unit takes, send us the model number and we can confirm before you order.