Boat Harness Installation Guidelines-Mpi Sterndrive; Boat Harness Deutsch Connector To Engine; Key Switch Connector - Mercury MerCruiser 3.0 MPI Installation Manual

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SECTION - 7
Use the proper length harness from the Y to the upper station.
Boat Harness Installation Guidelines—MPI Sterndrive

BOAT HARNESS DEUTSCH CONNECTOR TO ENGINE

Select the boat harness by length.
Length of the Boat
Harness
61 cm (02 ft.)
4.6 m (15 ft.)
6.0 m (20 ft.)
7.3 m (24 ft.)
8.8 m (29 ft.)
12.2 m (40 ft.)
NOTE: Extension harnesses are available if longer length is needed.

KEY SWITCH CONNECTOR

A mounting bezel is not available for the three position key switch.
NOTE: 899203A01 decal and washer kit is available for the three position key switch if needed.
The four position key switch is available with mounting hardware.
NOTE: When installing the ignition verify that the drain hole in the barrel of the switch is positioned
downward for proper drainage.
For dual helm installation, a key switch is used at the upper and lower station. The key switches
must operate independently.
90-899883183 DECEMBER 2007
Y‑adapter for dual helm installations
Boat Harness and Key Switch
Three Position (off/run/start)
84‑896537 K02
84‑896537 K15
84‑896537 K20
84‑896537 K24
84‑896537 K29
84‑896537 K40
Typical three position key switch (off/run/start)
25045
Typical four position key switch (off/accessory/run/start)
25132
Boat Harness
(key switch is not included)
25046
STARTING AND ELECTRICAL
Boat Harness
84‑896537 A02
84‑896537 A15
A84‑896537 20
84‑896537 A24
84‑896537 A29
84‑896537 A40
25044
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