4-Way Trailer Wiring Harness For 2015 GMC Sierra 1500 Base
Question:
I have a 2015 GMC Sierra 1500 base model. It did not come with the trailer hitch assembly. Do you know what I need to be able to power lights on the trailer? This will most likely be used with a Uhaul trailer if that helps.
asked by: Brian G
Helpful Expert Reply:
Yes, to power trailer lights with your 2015 GMC Sierra 1500 you will need a 4-way flat trailer connector, and your Sierra should have a round plug under the truck and behind the bumper like you see in the accompanying photo (though it won't be hanging down exactly like that). Assuming you do have that plug, you can use a simple plug-in connector, which is the following part number:
- T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118384
And to prevent corrosion on the 4-way it is highly recommended you use Dielectric Grease for Electrical Connectors # 11755.
It would be very surprising if that round connector isn't there, but if not, you will need to hardwire a connector, the Tail Light Converter Hardwire Kit # 119178KIT.
Since you also mentioned not having a trailer hitch receiver, for just pulling a U-Haul trailer you'll want the best value and easiest install which you can just bolt on, which for your 2015 GMC Sierra 1500 is the etrailer Trailer Hitch Receiver # e98860.
Products Referenced in This Question
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 4 Flat
- Tekonsha
more information >
Tekonsha Tail Light Converter with 4-Way Flat Trailer Connector and Install Kit
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Converter
- 1-1/2 Feet Long
- Universal Fit
- 4 Flat
- Tekonsha
more information >
etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class IV - 2"
- Trailer Hitch
- Custom Fit Hitch
- Class IV
- 1000 lbs TW
- 10000 lbs GTW
- 12000 lbs WD GTW
- 2 Inch Hitch
- 1200 lbs WD TW
- Visible Cross Tube
- etrailer
more information >
Product Page this Question was Asked From
Dielectric Grease for Electrical Connectors, 2 oz.
- Accessories and Parts
- Trailer Wiring
- Wiring
- Dielectric Grease
- LubriMatic
more information >
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