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Maretron J2K100-01 J1939 to NMEA 2000 Gateway Converter

Manufacturer

Maretron

<h3>Maretron: The Standard in Intelligent Vessel Monitoring</h3><p><strong>Maretron</strong> has been at the forefront of networked marine electronics since its founding in 2003. Built on the open <strong>NMEA 2000&reg;</strong> standard, Maretron&apos;s ecosystem of sensors, displays, software, and networking hardware gives mariners a unified, real-time view of every critical system aboard — from engines and fuel tanks to electrical circuits, weather, and navigation data. Whether you run a weekend sailboat or a long-range passagemaker, Maretron&apos;s modular platform scales to meet the demands of virtually any vessel.</p><h3>A Complete Ecosystem, Not Just Individual Products</h3><p>What sets Maretron apart is the depth and breadth of its product lineup. At the heart of the system is the N2KView&reg; vessel monitoring software, which aggregates data from hundreds of NMEA 2000 data points into a single customizable interface. Paired with real-time cloud services, N2KView&reg; allows operators to monitor their vessel remotely — whether dockside or from shore — with configurable SMS and email alerts for out-of-range conditions.</p><p>The hardware side of the Maretron portfolio is equally comprehensive. <a href="/200363-electronics-parts-accessories-maretron-11272">Electronics parts and accessories</a> form the backbone of any Maretron installation, including NMEA 2000 gateways, sensor modules, run indicator modules, switch interfaces, and the cabling infrastructure that ties it all together. Maretron is recognized as the first company to offer NMEA 2000-approved cabling, a distinction that underscores their deep commitment to the standard.</p><h3>Power Monitoring and Electrical Intelligence</h3><p>Keeping tabs on onboard power is critical for any mariner, and Maretron&apos;s <a href="/11272-maretron-battery-monitors-volt-meters-200146">battery monitors and volt meters</a> deliver precise, actionable data. The DCM100 Direct Current Monitor and OctoPlex&reg; Battery Monitor measure current draw, DC voltages, and battery temperatures, broadcasting all readings over the NMEA 2000 network so they can be displayed, logged, and alarmed alongside every other vessel system.</p><h3>Displays That Bring Your Vessel to Life</h3><p>Data is only useful if you can read it clearly. Maretron&apos;s <a href="/200956-multi-function-display-systems-maretron-11272">multi-function display systems</a> — including the DSM250 sunlight-readable color display and the TSM810C vessel monitoring touchscreen — present NMEA 2000 data through intuitive, customizable screen layouts. These displays are designed specifically for the marine environment, with rugged housings tested to IEC 60945 standards to withstand saltwater, vibration, and heavy-weather use.</p><h3>Navigation and Positioning</h3><p>Accurate positioning is fundamental to safe seamanship. Maretron&apos;s <a href="/200497-gps-cellular-wifi-antennas-maretron-11272">GPS antennas</a>, exemplified by the GPS200 GPS Antenna/Receiver, deliver reliable position fixes, boat speed, and precision timing directly onto the NMEA 2000 network. Because the data is broadcast over the shared network bus, any compatible display or software on board can instantly access GPS information without point-to-point wiring.</p><h3>The Network That Holds It All Together</h3><p>No NMEA 2000 network is complete without quality interconnect hardware. Maretron&apos;s <a href="/200987-specialty-connectors-maretron-11272">specialty connectors</a> — including T-connectors, terminators, and backbone cables in Micro and Mid configurations — are engineered to the same rugged waterproof standards as every other component in their lineup. Using properly rated connectors is especially important in the marine environment, where a single corroded contact can disrupt an entire network.</p><h3>Now Part of the Raymarine Family</h3><p>Maretron&apos;s vessel monitoring product lines — along with MPower&reg; digital switching and OctoPlex&reg; power distribution — are now part of the Raymarine family of brands, ensuring continued development, support, and integration with a broad range of chartplotters and marine electronics systems. For mariners who demand a complete, integrated picture of their vessel&apos;s health, Maretron remains the definitive choice.</p>

Part Number

J2K100-01
09/17/2036 7:25 PM
Sale Price

$353.32

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Product Details

The Maretron J2K100 gateway seamlessly bridges your engine's J1939 network and your boat's NMEA 2000 system, displaying critical engine, transmission, and genset information throughout your vessel. This intelligent gateway attaches directly to J1939 networks of compatible engines and converts data to NMEA 2000 format for distribution over a single cable to any compatible display.

Key Features:

  • Translates J1939 engine and transmission messages to equivalent NMEA 2000 messages
  • Opto-isolated J1939 interface eliminates ground loops and prevents network interference
  • Sealed waterproof IP67-rated enclosure with waterproof connectors
  • Powers from NMEA 2000 port—no power drawn from J1939 interface
  • Passes J1939 diagnostic messages and AC generator parameters
  • Interfaces Dometic MarineAir Elite, CruiseAir Q-Logic air conditioners, and Eskimo icemakers to NMEA 2000
  • Temperature rated to 55°C (130°F)
  • Flexible mounting options—horizontal, vertical, or inverted installation

Monitored Parameters:

  • Engine: Tachometer, hours, oil pressure/temperature, coolant pressure/temperature, boost pressure, load percentage, torque percentage
  • Fuel: Fuel rate monitoring for gallons per hour and miles per gallon calculations when paired with GPS200 and compatible display
  • Transmission: Gear position, oil pressure, oil temperature
  • Generator: AC voltage, current, frequency
  • Electrical: Charging voltage
  • Diagnostics: VIN, software ID, diagnostic trouble codes

Compatible Manufacturers:

Works with any J1939-equipped engine, transmission, or genset including Caterpillar, Cummins, Detroit Diesel, John Deere, Kohler, Northern Lights, Onan, Perkins, Steyr, Volvo Penta, and Yanmar. The MCF-2M-D12CAT adapter cable enables parallel connection with Caterpillar MPD displays.

What's Included:

  • J2K100 Gateway unit
  • Female Micro field-attachable connector for J1939 interface
  • 4 Mounting screws
  • User's manual
  • Warranty registration card

So far so good. First time to buy from here

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Placed an order with Adam on Monday, Nov 28th (#601). Very satisfied with Adam's technical knowledge and received my product on Nov 29th. The product is exactly as he represented and, because of this great customer service, I will place future orders.

Auotplicity had the lowest prices and S&H online. I will shop here again. Thanks Derek!

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