Is Hopkins Universal Wiring Harness HM40985 a Fit for a 2005 GMC Sierra 2500
Question:
I’m wondering if this will fit a 2005 GMC Sierra 2500 Duramax? Also is this universal with other trailer plugs? I have a brand new four way and seven pin connector and would rather not buy another one if I don’t have too.
asked by: Tyler P
Helpful Expert Reply:
The Universal Wiring Harness # HM40985 will fit your 2005 GMC Sierra 2500 Duramax and is compatible with any plug that uses the US Car Connector like the Hopkins # HM40975. When you install the Hopkins pigtail be sure that you connect the wires via function and not by color. You'll want to connect the following wires from the pigtail to the following functions on your Sierra:
Green - right turn signal
Yellow - left turn signal
White - ground
Brown - tail lights and side marker lights
Blue - electric brake
Red - auxiliary power
Purple - backup/reverse lights
Products Referenced in This Question
7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 7 Round - Blade
- 4 Flat
- Hopkins
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Product Page this Question was Asked From
Universal Wiring Harness for Hopkins Multi-Tow Vehicle-End Trailer Connectors - 4' Long
- Accessories and Parts
- Trailer Wiring
- Vehicle Wiring Harness
- Universal
- 7 Blade
- Hopkins
more information >
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