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5th Wheel Wiring and Hitch for 2020 GMC Sierra 2500

Question:

We need to wire our 2020 gmc 2500 to tow a 5th wheel.

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Expert Reply:

The wiring I recommend for your 2020 GMC Sierra for a 5th wheel is the Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector # C56070. This harness plugs in-line with your existing factory wiring so that you can retain use of your vehicles factory 7-pole.

If you are looking for a 5th wheel hitch I recommend the following hitches depending on your vehicles set up.

6-3/4 Foot Bed with OEM Prep Package:
Adapter Rails for Curt 5th Wheel Hitch - Ford and Chevy/GMC Towing Prep Package # C88KR
Curt Q20 5th Wheel Trailer Hitch w/ R20 Slider - Dual Jaw - 20,000 lbs # C16536

6-3/4 Foot Bed without OEM Prep Package:
Curt Custom Fifth Wheel Installation Kit for Chevy/GMC Truck # C16429-204
Curt Q20 5th Wheel Trailer Hitch w/ R20 Slider # C16536

8 Foot Bed with OEM Prep Package:
Curt Q20 5th Wheel Trailer Hitch # C57FR

8 Foot Bed without OEM Prep Package:
Curt Custom Fifth Wheel Installation Kit for Chevy/GMC Truck # C16429-204
Curt A20 5th Wheel Trailer Hitch # C16140

expert reply by:
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Scott S

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