Gooseneck Hitch for a 2021 GMC Sierra 1500
Published 07/30/2022 >
Products Featured in This Question
Question:
Gooseneck hitch for GMC 2021 1500
asked by: Eric
Expert Reply:
To add a gooseneck hitch to your 2021 GMC Sierra 1500 you are going to want the Custom Underbed Installation Kit for B&W Companion 5W Hitch item # BWGNRK1019-5W. The underbed install kit gives you the gooseneck hitch plus the added option for a 5th wheel hitch if you ever need one.
Please note this will not fit the carbon bed models.
To make towing with a gooseneck easier I recommend adding the Curt 5th Wheel/Gooseneck Custom Wiring Harness item # C53CR. This harness puts a 7-way connector in the bed of your truck and allows you to keep the one on your bumper. This makes hooking up to your gooseneck trailer easier and more convenient.
Product Page this Question was Asked From
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 >
Featured Help Information
Instructions
Continue Researching
- Q&A: Does Truck with 6-1/2 ft bed Have to Use Slider Hitch for Turning Clearance with Fifth Wheel Hitch
- Q&A: Comparing The Demco Autoslide And PullRite SuperGlide 5th Wheel Hitches
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box
- Q&A: Slider Hitch Recommendation for 2019 Ford F-350 with OEM Rail Kit
- Q&A: What Air Bags will Work on My 2026 GMC Sierra 1500 Denali with the 3.0L Diesel and ARC?
- Q&A: Instructions for Locking Plate for Demco Hijacker and MOR/Ryde Pin Box, DM6025
- Q&A: Recommended Capture Plates for Trailair Rota-Flex Pin Box with Demco Hijacker Autoslide
- Q&A: What is the Weight of the Demco 18k Autoslide Fifth Wheel Hitch ?
- Article: Should You Add an Air Compressor to Your Air Bags?
- Article: Gooseneck to 5th Wheel Adapters
- Article: Sidewinder with Rotating Turret for Short Bed Pickups
- Article: The Best 5th Wheel Hitches
- Article: The Ultimate RV Camping Checklist for Your First Year RVing
- Article: Double-Eye Trailer Suspension System Review

