How to Install the Demco 18K Hijacker Autoslide 5th Wheel Trailer Hitch on a 2011 GMC Sierra 2500
Question:
need a Demco 8550022 Hijacker Slide hitch 18,000 lbs . Also, need an install kit, I have a 2011 GMC 2500HD Sierra. I watched a video for the DM 6004, it said it was for 1500 series trucks. Also need a elec kit to add a plug inside the bed.. Part # ?? What do I need to get this installed
asked by: Darrell
Expert Reply:
In order to mount the Demco 18K Hijacker Autoslide 5th Wheel Trailer Hitch part # DM8550022 in the bed of your 2011 GMC Sierra 2500 you will need to use the Underbed Rail and Installation Kit for Demco Hijacker Hitches part # DM8551010.
The Replacement Side Plates for Demco Hijacker Autoslide 5th Wheel Trailer Hitches part # DM6004 that you referenced is designed to allow the above bed version of the Demco 18K Hijacker Autoslide 5th Wheel Trailer Hitch part # DM8550034 to be used with the underbed install kit.
For an in-bed wiring harness, I recommend the Demco 5th Wheel/Gooseneck 90-Degree Wiring Harness part # DM8555002 which will give you a 7-way trailer receptacle in the bed of your truck in addition to retaining the 7-way trailer receptacle on your bumper.

Products Referenced in This Question
Replacement Side Plates for Demco Autoslide 5th Wheel Trailer Hitches - Underbed Mount
- Accessories and Parts
- 5th Wheel Hitch
- Plates
- Side Plates
- Autoslide
- Demco
more information >
Demco Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Above Bed - 18,000 lbs
- 5th Wheel Hitch
- Sliding Fifth Wheel
- Above Bed Rails
- 4500 lbs Vertical Load
- 18000 lbs GTW
- Double Pivot
- Premium - Single-Hook Jaw
- 16-1/2 - 19-1/4 Inch Tall
- 14 Inch Fore/Aft Travel
- Demco
more information >
Underbed Rail and Installation Kit for Demco UMS 5th Wheel and Gooseneck Trailer Hitches
- 5th Wheel Hitch Rails
- Custom
- Below the Bed
- Demco
more information >
Demco 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug - 10' Long
- Custom Fit Vehicle Wiring
- Fifth Wheel and Gooseneck Wiring
- Vehicle End Connector
- No Tow Package
- 7 Round - Blade
- Plug and Lead
- Plug-In
- Demco
more information >
Product Page this Question was Asked From
Demco Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Underbed - 18,000 lbs
- 5th Wheel Hitch
- Sliding Fifth Wheel
- Aftermarket Below Bed Rails
- 4500 lbs Vertical Load
- 18000 lbs GTW
- Double Pivot
- Premium - Single-Hook Jaw
- 15-1/2 - 18-1/4 Inch Tall
- 14 Inch Fore/Aft Travel
- Demco
more information >
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Nick
4/5/2020
i have a 2019 F250, and looking how to install the 6077 to my OEM Ford quick release frame. I have checked all the sites and thing i have 2 L shaped height adjustable brackets i need to purchase.Can you tell me if this is correct the part number and may be an installation guide.Thanks