Engine Gateway YDEG-04

Gateway for Volvo Penta, BRP Rotax and J1939 engines to NMEA 2000 marine electronics network. It will provide you with engine revolutions, motor hours, coolant temperature, battery voltage, warning and alarms, fuel rate and other data on the screen of your chart plotter.

On most vessels with Volvo Penta engines, all that you need is to plug the device into an empty socket of the NMEA 2000 network backbone and connect the engine cable to a Multilink hub or, using the built-in Y-connector on the engine cable, to connect it in series with any of the tachometers. Adaptor cable or pin change is required only for EVC-A and EVC-MC engines manufactured in 2003-2006. Factory settings are suitable for most of vessels with one or two engines. In case of two or more engines, one device is enough if they are joined to a single network.

To connect the Gateway to J1939 engines you may need to purchase or make an adaptor cable.

The BRP Rotax connector is the same as the 6-pin Deutsch connector used in the Device, but the wiring is different. To physically connect the Device to the BRP CAN network, you should use an adaptor cable purchased separately (USD $29, in stock) or you can disassemble the Device's connector and change the pin order. See the video kindly provided by one of our customers, with a description of Device installation on a Scarab 215HO Jet Boat with two Rotax 1503 4-tec Engines.


Drawing of Engine Gateway YDEG-04

Picture 1. Drawing of Engine Gateway YDEG-04

Reasons to buy:

  • duplicate or replace broken instruments;
  • in combination with a wifi-enabled chart plotter, you'll be able to monitor your engine from any cabin;
  • log engine and fuel usage by crew or renters if a recording device like Voyage Recorder is outfitted;
  • record your engine data to apply for service remotely.


Raymarine c125 MFD with Volvo Penta D2-40F data

Picture 2. Raymarine c125 MFD with Volvo Penta D2-40F data

Data you may get on the chart plotter depends on the engine controller and number of installed sensors. Legacy chart plotters may not support display of all data types.

  • RPM
  • Total engine hours
  • Coolant temperature
  • Battery voltage
  • Alternator potential
  • Engine warnings and alarms
  • Coolant pressure
  • Boost pressure
  • Engine oil pressure
  • Engine oil temperature
  • Fuel tank level
  • Fuel rate
  • Fuel delivery pressure
  • Percent engine load
  • Percent engine torque
  • Exhaust gas temperature
  • Transmission current gear
  • Transmission oil pressure
  • Transmission oil temperature
  • Multisensor data (EVC-A engines)


The Gateway is equipped with MicroSD card slot intended for firmware updates. In the next firmware versions, we plan to add even more data!.



  • low cost installation, no extra cables required in most cases;
  • easy configuration with a simple text file on MicroSD card;
  • high-voltage galvanic isolation between J1939 and NMEA 2000 interfaces;
  • only listens to J1939 network;
  • J1939 data recording for diagnostics and configuration;
  • special support for Volvo Penta D1 and D2 engines;
  • first device on the market with a support of Volvo Penta EVC-A and EVC-MC engines (Volcano protocol);
  • first device on the market with a support of BRP Rotax engines (BRP CAN protocol);
  • up to 8 engines and transmissions, 8 batteries and 10 fuel tanks are supported by one device;
  • fuel tank's capacity settings and 12-point sensor's calibration for all tanks.



Order ($189 USD) User Manual (PDF)

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The Gateway is compatible with a virtually all equipment supporting NMEA 2000. Raymarine SeaTalk NG, Simrad SimNet, and Furuno CAN networks are branded versions of NMEA 2000 and differ only by connector type. Garmin uses the NMEA 2000 Micro connector in its devices, which is compatible with the DeviceNet Micro connector.

The Gateway is supplied with a connector compatible with SeaTalk NG or a connector compatible with NMEA 2000 Micro Male (see the picture below). For other networks, an adaptor cable may be required.

Screenshot of Google Earth with Voyage Recorder's GPX file, click to enlarge

Picture 3. Device connectors, left to right: J1939 6-pin Deutsch connector female, Deutsch connector male, NMEA 2000 Micro Male connector, SeaTalk NG connector

Compatibility with NMEA 2000 devices

Easy steps to check your chart plotter or display compatibility:

  1. check the chart plotter manual, that it is compatible with NMEA 2000;
  2. check that it have engine's data page with tachometer and coolant temperature gauges, etc.;
  3. check that it support NMEA 2000 messages with PGN 127488 (Engine Parameters, Rapid Update) and 127489 (Engine Parameters, Dynamic), this data usually available in the appenix of manual.

Compatibility with Volvo Penta engines

Gateway is compatible with engines equipped by EVC-A, EVC-MC, EVC-C, EVC-D, EVC-E system or MDI block. Sometimes it is hard to get the exact EVC version from the documentation, and one of the following indications may help you to be sure that your engine is compatible:

  1. tachometer is connected with a 6-pin Deutsch connector (see picture above);
  2. your engine network has a Helm Control Unit with a slot marked "Multilink" (usually the connector and/or the cable label are yellow);
  3. your engine network has a multilink hub (casing usually made completely of yellow plastic).

For additional technical details, please see the User Guide and FAQ.


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