Trailer Wiring Harness for a 1994 GMC C/K Series Pickup Truck

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Question:

I was looking for 1994 GMC Sierra trailer wiring harness with 4 pole flat trailer connector. I can only find the it for 1994 GMC c/K series pickup on your website will this work on the Sierra also?

asked by: Mandy D

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Expert Reply:

In 1994 the Sierra was just a trim level of the C/K series GM trucks. It wasn't until 1999 that the Sierra started to take the place of the C or K designation and that transition was complete in 2000. For a trailer wiring harness that will fit your truck I recommend the Tow Ready harness # 118315. It plugs in line with the vehicle tail light wiring. I have linked a video showing an example installation for you. A mounting bracket such as # 18144 is also recommended.

expert reply by: Michael H

0

Answer 1

Brake controller wiring Colors are as follows. White = ground, negative battery terminal Blue = trailer brake feed, output to 7-Way trailer connector Red = stop light, 12 volts when brake pedal is pressed Black = 12 volt power, constant If the red…

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Answer 2

To add a wiring harness to your 1992 Chevy Silverado for your boat trailer you need to first add a 4-flat, the T-One Vehicle Wiring Harness #118315; I've attached a link showing this harness being installed on a similar truck for you to…

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Answer 3

The wire you are referring to is probably the center high mount stop light wire or CHMSL. This wire would be used for a third brake light function for example on a camper shell. You can test it by using a circuit tester like #PTW2993. If the wire…

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Answer 4

The 2000 Chevy C/K Series does not have a plug in the relay box or under the dash to plug a brake controller adapter into. To wire in a brake controller like part #90195 it would be a hardwired application. To accomplish wiring in the brake…

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Answer 5

To wire a 7-Way trailer connector at the rear of your 1994 Chevy pickup, you will need to start with a working 4-way connector, item #118315, if your truck is not already equipped with one. You would then use the 4 Pole to 7 Pole and 4 Pole…

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Answer 6

We do have what you need to install a fully functional 7-Way connector on your 1995 GMC Sierra, however there is not a plug and play 7-Way option similar to the 4-Way Harness #118315 available for your truck. If you do not yet have a connector…

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Answer 7

On a 7-Way connector the suggested minimum wire gauge for the White (ground) wire, the Red or Black (power) wire, and the Blue (brake power) wire is 12 gauge. The minimum wire gauge for the remaining Green (right turn/brake) wire, the Yellow (left…

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Answer 8

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 9

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 10

There is only one difference between the Curt Trailer Hitch Receiver #C13176 and etrailer Trailer Hitch Receiver #e98909 that fit your 2020 Chevrolet Colorado, which is the finish. The Curt trailer hitch has a glossy black finish while the etrailer…

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Answer 11

Yes, we do. To add a hitch to your 2024 Toyota Grand Highlander, I recommend the Curt Trailer Hitch item #C26VV. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a…

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Answer 12

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Trailer Wiring Harness for a 1994 GMC C/K Series Pickup Truck

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