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 (+)
Envinrude
Gray
Honda
Gray
Mercury
Gray
Mercury Verado
N/A
Suzuki
Yellow
Yamaha
Green
Gasoline Inboard Engines
Engine Manufacturer
Tachometer (+)
Mercruiser
Gray
Volvo
N/A
Crusader Engines
Gray
Diesel Engines
Engine Manufacturer
Tachometer (+)
Caterpillar
N/A
Cummins
N/A
Man
N/A
Volvo
N/A
Yanmar
Yellow wire or
Orange/Gray
wire at the
alternator
*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-
fied by OEM boat manufacturer.
GHP
10 Tachometer Reference
™
Tachometer (-)
Notes
Black
NMEA 2000*
Black
Black
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.
Black
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.
Tachometer (-)
Notes
Black
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).
Black
Tachometer (-)
Notes
N/A
•
C15 and most other engines, fly wheel tooth counter (part#1895746)
•
Maretron part number MCF-2M-D12 CAT
N/A
•
For QS11 and most other engines use a fly wheel tooth counter (part#3078155)
•
For QSB, QSC, QSL, QSM motors, use Maretron part number J2K100**
N/A
Maretron part number J2K100**
N/A
Volvo Canbus to NMEA 2000 (Volvo part number 3889758)
Engine ground
NMEA 2000*
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