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Enhance your marine navigation setup with premium navigation instrument accessories designed to improve installation, connectivity, and overall performance on the water. Whether you're upgrading your helm, replacing components, or expanding your onboard electronics system, the right accessories help ensure reliable operation and seamless integration. Built for demanding freshwater and saltwater environments, our collection features durable products engineered to withstand moisture, vibration, corrosion, and harsh marine conditions. Browse mounting brackets, protective covers, cables, sensors, connectors, replacement parts, display accessories, networking components, and other essential navigation hardware for a wide range of marine instruments. Designed for compatibility, convenience, and long-lasting reliability, these accessories help maximize the functionality of GPS systems, chartplotters, fish finders, radar, autopilots, and other onboard electronics. Featuring trusted marine brands recognized for quality and innovation, our Marine Navigation Instruments – Accessories collection provides dependable solutions for recreational boaters, anglers, and professional mariners. Shop today with confidence.

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  • Garmin GRID 20 - Vertical [010-02011-00]
    Garmin

    Garmin GRID 20 - Vertical [010-02011-00]

    $372.42
    $404.18
    $372.42
    GRID™ 20 - VerticalSit Back and Take Control Provides intuitive, easy-to-use remote access and control of your entire Garmin marine system 360-degree, all-in-one joystick with a rotary knob and push-to-select button Enables easy chartplotter menu/setting navigation and fine control, even in the worst conditions...
    $372.42
    $404.18
    $372.42
  • Vesper Waterproof USB Cable - 5M (16) [010-13276-00]
    Vesper

    Vesper Waterproof USB Cable - 5M (16) [010-13276-00]

    $38.96
    $43.29
    $38.96
    Waterproof USB Cable - 5M (16')USB cable for the AISWatchMate 850, AISWatchMate Vision, and XB-8000 transponders5M (16') USB cable with a waterproof connector that twists locks into the USB socket on a Vesper Marine transponder and has a standard PC USB connector for your...
    $38.96
    $43.29
    $38.96
  • Garmin GPS 24xd GPS Antenna w/Heading Sensor f/NMEA 2000 Network - Black [010-02316-20]
    Garmin

    Garmin GPS 24xd GPS Antenna w/Heading Sensor f/NMEA 2000 Network - Black [010-02316-20]

    $454.71
    $526.89
    $454.71
    GPS 24xd GPS Antenna with Heading Sensor for NMEA 2000 Network - BlackThe GPS 24xd position receiver and antenna give users precise location with multi-band GNSS and heading accuracy even at slow speeds.Features: Navigate to more locations with expanded GNSS support Get high-sensitivity tracking...
    $454.71
    $526.89
    $454.71
  • Garmin Bail Mount f/GPSMAP 15x3 Series [010-12992-03]
    Garmin

    Garmin Bail Mount f/GPSMAP 15x3 Series [010-12992-03]

    $90.93
    $101.04
    $90.93
    Bail Mount for GPSMAP® 15x3 SeriesSurface mount your compatible GPSMAP device using our bail mount. The mount tilts the device for optimum viewing. Specifications:Type: Mounting Brackets
    $90.93
    $101.04
    $90.93
  • FLIR Video Cable F-Type to BNC - 25' [308-0164-25]
    FLIR Systems

    FLIR Video Cable F-Type to BNC - 25' [308-0164-25]

    $186.22
    $0.00
    $186.22
    Video Cable F-Type to BNC - 25'25' Cable - F-Type on one end, BNC on the other endFor use with MD-Series Specifications: Type: Cables Box Dimensions: 2"H x 6"W x 6"L WT: 0.9 lbs UPC: 815121010803
    $186.22
    $0.00
    $186.22
  • Raymarine 5M Digital Radar Cable w/RayNet Connector On One End [A80227]
    Raymarine

    Raymarine 5M Digital Radar Cable w/RayNet Connector On One End [A80227]

    $238.17
    $0.00
    $238.17
    5M Digital Radar Cable w/RayNet Connector f/HD & Super HD Color Radar Scanners Specifications: Type: Cables Box Dimensions: 4"H x 11"W x 11"L WT: 1.5 lbs UPC: 723193770580
    $238.17
    $0.00
    $238.17
  • Furuno GPS021S DGPS Antenna [GPA021S]
    Furuno

    Furuno GPS021S DGPS Antenna [GPA021S]

    $658.26
    $0.00
    $658.26
    GPS021S DGPS AntennaFuruno's GPS/DGPS H-Field Antenna WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.This product may not be returned to the...
    $658.26
    $0.00
    $658.26
  • Garmin Field Installable Connectors [010-12117-01]
    Garmin

    Garmin Field Installable Connectors [010-12117-01]

    $111.14
    $122.69
    $111.14
    Field Installable ConnectorsUse our waterproof male/female field-installable connectors at the foot of the mast for easy connection of the mast cables on our gWindT family of transducers when stepping the mast.Compatible Devices: GND™ 10 Black Box Bridge gWind™ Race Transducer gWind™ Transducer gWind™ Wireless...
    $111.14
    $122.69
    $111.14
  • Vexilar Sidekick Ice Base [SKB001]
    Vexilar

    Vexilar Sidekick Ice Base [SKB001]

    $14.42
    $18.75
    $14.42
    Sidekick™ Ice BaseThe Sidekick™ Ice Base is designed to work in conjunction with the exclusive Sidekick WiFi Sonar Transducer. Just snap the Sidekick module into the designated slot on the Ice Base, drop your transducer in the hole, and start fishing. Take the Ice...
    $14.42
    $18.75
    $14.42
  • Vexilar Sidekick Thermal Tip-Up [SKTU01]
    Vexilar

    Vexilar Sidekick Thermal Tip-Up [SKTU01]

    $60.62
    $72.16
    $60.62
    Sidekick™ Thermal Tip-UpThe Vexilar Thermal Tip-Up is designed to work in conjunction with the exclusive Sidekick™ WiFi Sonar Transducer. Simply snap the Sidekick module into the designated slot on the tip-up, and you’re ready to fish. For the first time, you can monitor your...
    $60.62
    $72.16
    $60.62
  • Vexilar Sidekick Mounting Plate [SKMP01]
    Vexilar

    Vexilar Sidekick Mounting Plate [SKMP01]

    $10.09
    $14.42
    $10.09
    Sidekick™ Mounting PlateThe Sidekick™ Mounting Plate is designed to work in conjunction with the exclusive Sidekick WiFi Sonar Transducer. The mounting plate can be mounted to the wall, floor, or countertop of your wheel house, making accessibility quick and easy. Built-in teeth help to...
    $10.09
    $14.42
    $10.09
  • Garmin GA 38 GPS GLONASS Antenna - Black [010-13305-20]
    Garmin

    Garmin GA 38 GPS GLONASS Antenna - Black [010-13305-20]

    $194.87
    $216.52
    $194.87
    GA™ 38 GPS & GLONASS Antenna - BlackBuilt to take advantage of the GLONASS system/constellation of satellites as well as standard GPS, this robust external antenna is packaged in a low-profile water-resistant housing and provides 3 easy mounting solutions: pole, surface, or under-deck (for...
    $194.87
    $216.52
    $194.87
  • Garmin 3' Extension Cable f/LiveScope 2 Series [010-13983-21]
    Garmin

    Garmin 3' Extension Cable f/LiveScope 2 Series [010-13983-21]

    $116.91
    $129.91
    $116.91
    3' Extension Cable for LiveScope™ 2 SeriesExtend the length of your compatible LiveScope 2 or LiveScope 2 HD transducer.
    $116.91
    $129.91
    $116.91
  • Garmin All-In-One Power/Network Cable f/LiveScope 2 HD Ice Fishing Transducer [010-13983-11]
    Garmin

    Garmin All-In-One Power/Network Cable f/LiveScope 2 HD Ice Fishing Transducer [010-13983-11]

    $207.86
    $230.96
    $207.86
    All-In-One Power/Network Cable f/LiveScope™ 2 HD Ice Fishing TransducerConnect your LiveScope 2 HD ice fishing transducer and compatible ECHOMAP™ chartplotter to the battery of your compatible ice fishing bundle with this all-in-one compact cable. With built-in network connections, the chartplotter and transducer will always...
    $207.86
    $230.96
    $207.86
  • Garmin Retrofit Kit f/Signal Marine VHF Radio Series [010-13441-20]
    Garmin

    Garmin Retrofit Kit f/Signal Marine VHF Radio Series [010-13441-20]

    $40.41
    $43.29
    $40.41
    Retrofit Kit for Signal™ Marine VHF Radio SeriesYou can install the Garmin Signal™ VHF radio into the existing cutout for a Garmin® VHF 210/215 radio using this retrofit kit.Use this kit to install a compatible Garmin Signal marine VHF radio into an existing VHF...
    $40.41
    $43.29
    $40.41
  • Garmin Power/Network Cable f/LiveScope 2 Transducer Series [010-13983-10]
    Garmin

    Garmin Power/Network Cable f/LiveScope 2 Transducer Series [010-13983-10]

    $207.86
    $230.96
    $207.86
    Power/Network Cable for LiveScope™ 2 Transducer SeriesConnect your LiveScope 2 transducer to your power source and compatible chartplotter network with this cable.
    $207.86
    $230.96
    $207.86
  • Garmin Signal 6.5" External Black Shallow Mount Speaker [010-13442-01]
    Garmin

    Garmin Signal 6.5" External Black Shallow Mount Speaker [010-13442-01]

    $90.93
    $101.04
    $90.93
    Signal™ 6.5" External Black Shallow Mount SpeakerMarinized speaker with a 15W RMS output provides loud and clear audio from compatible Garmin Signal marine VHF radios. The shallow mount design allows for versatile installation on board your vessel.
    $90.93
    $101.04
    $90.93
  • Garmin Protective Cover f/Signal Marine VHF Radio Series [010-13441-10]
    Garmin

    Garmin Protective Cover f/Signal Marine VHF Radio Series [010-13441-10]

    $38.96
    $43.29
    $38.96
    Protective Cover for Signal™ Marine VHF Radio SeriesUse this cover to protect your compatible Garmin Signal marine VHF radio from the harsh marine environment when not in use.
    $38.96
    $43.29
    $38.96
  • Garmin Stacking Mount f/Garmin BlueNet Network [010-13142-00]Garmin Stacking Mount f/Garmin BlueNet Network [010-13142-00]
    Garmin

    Garmin Stacking Mount f/Garmin BlueNet Network [010-13142-00]

    $51.95
    $57.73
    $51.95
    Stacking Mount for Garmin BlueNet™ NetworkUse this stacking mount to save space and enhance access to both the Garmin BlueNet™ 20 switch and Garmin BlueNet™ 30 gateway. 
    $51.95
    $57.73
    $51.95
  • Garmin Protective Cover f/GPSMAP 12x3 Series [010-12989-02]
    Garmin

    Garmin Protective Cover f/GPSMAP 12x3 Series [010-12989-02]

    $38.96
    $43.29
    $38.96
    Protective Cover for GPSMAP® 12x3 SeriesProtect your compatible marine device from scratches and the sun when not in use. This protective cover fits snugly over the display to avoid exposure. Specifications: Type: Covers Box Dimensions: 1"H x 10"W x 13"L WT: 0.55 lbs UPC:...
    $38.96
    $43.29
    $38.96