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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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  • Navico M12 to RJ45 Female Adapter - 1.5M [000-16495-001]
    Navico

    Navico M12 to RJ45 Female Adapter - 1.5M [000-16495-001]

    $93.82
    $102.49
    $93.82
    M12 to RJ45 Female Adapter - 1.5MThe Lowrance M12 to RJ45 Female Cable (1.5M) is primarily used to connect older or different marine electronics to standard Ethernet networks, converting the waterproof 8-pin (M12) Navico connector into a standard RJ45 female port.
    $93.82
    $102.49
    $93.82
  • Navico Ethernet Cable - 5M - M12 to M12 f/NEP-3 [000-16076-001]
    Navico

    Navico Ethernet Cable - 5M - M12 to M12 f/NEP-3 [000-16076-001]

    $112.58
    $0.00
    $112.58
    Ethernet Cable - 5M - M12 to M12 for NEP-3The Navico Ethernet Extension cable measures 5M and is designed for M12 to M12 connections for the NEP-3. Specifications: Type: Cables Box Dimensions: 2"H x 7"W x 8"L WT: 0.6 lbs UPC: 9420064130641
    $112.58
    $0.00
    $112.58
  • Garmin 16" Protective Cover - Magnetic [010-12799-12]
    Garmin

    Garmin 16" Protective Cover - Magnetic [010-12799-12]

    $155.89
    $173.21
    $155.89
    16" Protective Cover - MagneticKeep your compatible GPSMAP device safe from the harsh marine environment, when not in use, with this magnetic protective cover. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth...
    $155.89
    $173.21
    $155.89
  • Garmin quatix 8 Pro - 47mm, AMOLED [010-03198-50]
    Garmin

    Garmin quatix 8 Pro - 47mm, AMOLED [010-03198-50]

    $1,732.26
    $0.00
    $1,732.26
    quatix® 8 Pro - 47mm, AMOLEDPLOT YOUR PARADISEGarmin's quatix 8 Pro is the nautical smartwatch with inReach® technology1 that gives you satellite and LTE connectivity on the water and on land, vessel-connected apps, and 24/7 health and wellness features. Bright, crisp AMOLED display Extend...
    $1,732.26
    $0.00
    $1,732.26
  • Garmin Electronic Control Unit (ECU) f/GHP 12 [010-11053-30]
    Garmin

    Garmin Electronic Control Unit (ECU) f/GHP 12 [010-11053-30]

    $1,245.78
    $1,443.55
    $1,245.78
    Electronic Control Unit (ECU)Garmin's Electronics Control Unit (ECU) is made specifically for the GHP™ 12 Autopilot System.Compatible Devices: GHP™ 12 Autopilot System GHP Reactor™ Mechanical/Retrofit/Solenoid Corepack WARNING: This product can expose you to chemicals which are known to the State of California to cause...
    $1,245.78
    $1,443.55
    $1,245.78
  • Garmin OTG Adapter Cable f/GPSMAP 8400/8600 [010-12390-11]
    Garmin

    Garmin OTG Adapter Cable f/GPSMAP 8400/8600 [010-12390-11]

    $103.92
    $115.47
    $103.92
    OTG Adapter Cable for GPSMAP® 8400/8600Charge USB devices from your GPSMAP® 8400 or 8600 series chartplotter with this 6-foot adapter cable. The waterproof and secure connection allows you to power an external device via USB, such as a phone or media player, from your...
    $103.92
    $115.47
    $103.92
  • Garmin High-Speed HDMI Cable [010-12390-22]
    Garmin

    Garmin High-Speed HDMI Cable [010-12390-22]

    $111.14
    $122.69
    $111.14
    High-Speed HDMI CableUse this 15-foot cable to connect your compatible Garmin marine product to an HDMI device. The water-resistant and secure connection supports 4K video and audio playback. Refer to your device owner’s manual for more information on supported A/V features.
    $111.14
    $122.69
    $111.14
  • Garmin Trim Piece Snap Cover f/GPSMAP 9x3 Series [010-12990-01]
    Garmin

    Garmin Trim Piece Snap Cover f/GPSMAP 9x3 Series [010-12990-01]

    $38.96
    $43.29
    $38.96
    Trim Piece Snap Cover for GPSMAP® 9x3 Series Don't let misplaced or broken trim blemish the beauty of your Garmin. Use this trim piece snap cover and mount your compatible GPSMAP marine device.
    $38.96
    $43.29
    $38.96
  • Garmin 10' Extension Cable f/LiveScope 2 Series [010-13983-22]
    Garmin

    Garmin 10' Extension Cable f/LiveScope 2 Series [010-13983-22]

    $142.90
    $158.78
    $142.90
    10' Extension Cable for LiveScope™ 2 SeriesExtend the length of your compatible LiveScope 2 or LiveScope 2 HD transducer.
    $142.90
    $158.78
    $142.90
  • Garmin GMI 20 to GMI 40 Adapter Plate [010-12993-20]
    Garmin

    Garmin GMI 20 to GMI 40 Adapter Plate [010-12993-20]

    $25.97
    $28.86
    $25.97
    GMI™ 20 to GMI 40 Adapter PlateThis adapter plate allows you to install a new GMI 40 marine instrument into the existing cutout of a GMI 20 in your dash.
    $25.97
    $28.86
    $25.97
  • Garmin Signal 6.5" External White Shallow Mount Speaker [010-13442-00]
    Garmin

    Garmin Signal 6.5" External White Shallow Mount Speaker [010-13442-00]

    $90.93
    $101.04
    $90.93
    Signal™ 6.5" External White 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 Bulkhead Connector Kit f/LiveScope 2 Transducer Series 12-Pin Scanning Transducers [010-13983-20]Garmin Bulkhead Connector Kit f/LiveScope 2 Transducer Series 12-Pin Scanning Transducers [010-13983-20]
    Garmin

    Garmin Bulkhead Connector Kit f/LiveScope 2 Transducer Series 12-Pin Scanning Transducers [010-13983-20]

    $59.17
    $64.95
    $59.17
    Bulkhead Connector Kit for LiveScope™ 2 Transducer Series & 12-Pin Scanning TransducersFlush-mount an extension cable so you can quickly connect and disconnect your transducer. Compatible with all LiveScope 2 transducer Y-cables, extension cables, and the 12-pin orange extension cables for the GT360UHD and GT56UHD...
    $59.17
    $64.95
    $59.17
  • Garmin Camera Coax Cable - 25M [010-13026-02]
    Garmin

    Garmin Camera Coax Cable - 25M [010-13026-02]

    $362.32
    $418.62
    $362.32
    Camera Coax Cable - 25MAdd additional length for installations with this 25M camera coax cable.
    $362.32
    $418.62
    $362.32
  • Garmin Transducer Right Angle Adapter Cable (12-pin) [010-12098-10]
    Garmin

    Garmin Transducer Right Angle Adapter Cable (12-pin) [010-12098-10]

    $51.95
    $57.73
    $51.95
    Transducer Right Angle Adapter Cable (12-pin)Install your chartplotter in tight-fitting locations or replace your black box sonar cable with this 23.6-inch, right-angle transducer adapter cable. Supports all Garmin and Airmar (with XID) 12-pin transducers.
    $51.95
    $57.73
    $51.95
  • Garmin Magnetic Protective Cover f/GPSMAP 9x10 Chartplotters [010-13901-10]
    Garmin

    Garmin Magnetic Protective Cover f/GPSMAP 9x10 Chartplotters [010-13901-10]

    $129.91
    $144.34
    $129.91
    Magnetic Protective Cover for GPSMAP® 9x10 ChartplottersKeep your compatible GPSMAP® 9000 chartplotter safe from the harsh marine environment, when not in use, with this magnetic protective cover.
    $129.91
    $144.34
    $129.91
  • Garmin Carabiner Clip f/MOB Tag - Black [010-13401-21]
    Garmin

    Garmin Carabiner Clip f/MOB Tag - Black [010-13401-21]

    $25.97
    $28.86
    $25.97
    Carabiner Clip for MOB Tag - BlackAttach your MOB tag in a convenient way with this carabiner with quick-release attachment, or slip it in your pocket with the floating keychain.What's In The Box? Carabiner with 20 mm quick-release attachment Floating foam keychain
    $25.97
    $28.86
    $25.97
  • Garmin Camera Coax Cable - 15M [010-13026-01]
    Garmin

    Garmin Camera Coax Cable - 15M [010-13026-01]

    $274.26
    $317.57
    $274.26
    Camera Coax Cable - 15MAdd additional length for installations with this 15M camera coax cable.
    $274.26
    $317.57
    $274.26
  • Garmin BlueNet Marine Network Cable - 50' [010-12528-03]
    Garmin

    Garmin BlueNet Marine Network Cable - 50' [010-12528-03]

    $90.93
    $101.04
    $90.93
    BlueNet™ Marine Network Cable - 50'The Garmin BlueNet™ marine network cables offer additional cable lengths to help with installations. Additional sizes are sold separately.
    $90.93
    $101.04
    $90.93
  • Garmin Magnetic Protective Cover f/GPSMAP 9x17 Chartplotters [010-13901-12]
    Garmin

    Garmin Magnetic Protective Cover f/GPSMAP 9x17 Chartplotters [010-13901-12]

    $181.87
    $202.08
    $181.87
    Magnetic Protective Cover for GPSMAP® 9x17 ChartplottersKeep your compatible GPSMAP® 9000 chartplotter safe from the harsh marine environment, when not in use, with this magnetic protective cover.
    $181.87
    $202.08
    $181.87
  • Garmin LiveScope Bulkhead Connector Kit [010-13350-00]Garmin LiveScope Bulkhead Connector Kit [010-13350-00]
    Garmin

    Garmin LiveScope Bulkhead Connector Kit [010-13350-00]

    $59.17
    $64.95
    $59.17
    LiveScope™ Bulkhead Connector KitFlush-mount the LiveScope™ extension cable so users can quickly connect and disconnect the LiveScope™ transducer. The kit includes a snap-on base, cover, weatherproof cap, and all mounting components.Compatible Devices: LiveScope™ Plus LVS34 LiveScope™ Plus System LiveScope™ System LiveScope™ XR LVS62 LiveScope™...
    $59.17
    $64.95
    $59.17