Correct B&W 5th Wheel Setup For 2026 GMC Sierra 2500 Towing 2026 Brinkley Z 3100
Updated 07/22/2026 | Published 07/19/2026
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Question:
I have a 2026 Sierra 2500 Denali with the puck system and I'm getting a 2026 Brinkley Z 3100. I want to swap it out to the B&W gooseneck pin box. Which of these 5th wheel setup packages do I need for my new truck and 5th wheel?
asked by: Tom
Expert Reply:
Hey Tom, great question! The correct B&W 5th Wheel Setup depends on your pin box bolt pattern and the weight of your trailer. For your 2026 GMC Sierra Denali we have the following available:
-B&W 5th Wheel Setup w/ Gooseneck Pin Box - Lippert Rhino - 25K GTW - 3.25K TW # BW25RV
-B&W 5th Wheel Setup w/ Gooseneck Pin Box - Lippert Rhino - 25K GTW - 4.5K TW # BW65RV
-B&W 5th Wheel Setup w/ Gooseneck Pin Box - Lippert 1621/1621HD - 25K GTW - 3.25K TW # BW85RV
-B&W 5th Wheel Setup w/ Gooseneck Pin Box - Lippert 1621/1621HD - 25K GTW - 4.5K TW # BW75RV
As far as I know that Brinkley model comes standard with a Curt Helux which uses the Rhino bolt pattern. If you have a different pin box I can identify it for you if you can tell me the S/N off of the sticker.
It looks like your GVWR is 15,495 lbs so based on that the 3.25K TW model # BW25RV would be the correct fit for your Z 3100. All of these kits include the B&W gooseneck hitch ball, safety chain anchors, and safety chains for a complete setup.
Where are you headed with the Brinkley once you upgrade your pin box?
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Product Page this Question was Asked From
B&W 5th Wheel Setup w/ Replacement Gooseneck Pin Box - Lippert Rhino - 25K GTW - 3.25K TW
- 5th Wheel Hitch
- Fixed 5th Wheel
- Aftermarket Below Bed Rails
- 3250 lbs Vertical Load
- 25000 lbs GTW
- B and W
more information >
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on 5th Wheel Hitch
Tom R.
7/22/2026
Hey thanks that really helps a lot! It does have the Curt Helux so I'll go with the one you recommended, the BW25RV. Not sure where we're headed, planning that as we speak, but this is a big step in helping us get there!