Garmin GHP 10 System, GHP 10V System Tachometer Reference

GHP™ 10 Tachometer Reference

This document contains common tachometer wiring connections on a variety of engines. This document is for reference only, and Garmin is not
responsible for its contents or for the consequences of following the suggestions included below. Engine tachometer connections are subject to
change at any time and Garmin is not responsible for updating any of the information or suggestions included below. Use the information and
suggestions included in this document at your own risk..

For the most reliable tachometer connection information available you must consult your engine manufacturer before wiring the
GHP 10 to the tachometer.

Gasoline Outboard Engines

Engine Manufacturer Tachometer (+) Tachometer (-) Notes

Envinrude Gray Black NMEA 2000*

Honda Gray Black

Mercury Gray Black

Mercury Verado N/A N/A Use the J-Box adapters provided in the GHP 10 Verado adapter kit to connect to the

Tachometer. Follow the instructions provided in the adapter kit.

Suzuki Yellow Black

Yamaha Green Black NMEA 2000*

•
Certain Yamaha motors requre a Command Link Converter (Yamaha part number

•
MAR-6X6DA-C0-00) to transmit tachometer information to the GHP 10. Contact your
Yamaha dealer for more information.

Gasoline Inboard Engines

Engine Manufacturer Tachometer (+) Tachometer (-) Notes

Mercruiser Gray Black

Volvo N/A N/A To access the tachometer information from the proprietary Volvo BUS, you must use a

Volvo Canbus to NMEA 2000 converter (Volvo part number 3889758).

Crusader Engines Gray Black

Diesel Engines

Engine Manufacturer Tachometer (+) Tachometer (-) Notes

Caterpillar N/A N/A C15 and most other engines, y wheel tooth counter (part#1895746)

Cummins N/A N/A For QS11 and most other engines use a y wheel tooth counter (part#3078155)

Man N/A N/A Maretron part number J2K100**

Volvo N/A N/A Volvo Canbus to NMEA 2000 (Volvo part number 3889758)

Yanmar Yellow wire or

Orange/Gray
wire at the
alternator

Engine ground NMEA 2000*

•
Maretron part number MCF-2M-D12 CAT

•

•
For QSB, QSC, QSL, QSM motors, use Maretron part number J2K100**

•

*If the motor is NMEA 2000-compatible, there will be no tachometer wires. Tachometer information will be received through the NMEA 2000 BUS

** Maretron J1939 Canbus to NMEA 2000 converter
Note: Part #J2k100 may not work in some applications due to the fact that most engine manufactures will send out proprietary Canbus unless J1939 is speci-

ed by OEM boat manufacturer.