Will the 25,000 lbs B&W Companion OEM 5th Wheel Hitch Fit a 2021 GMC Sierra 3500?
Updated 10/30/2025 | Published 10/10/2025
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Question:
I am pretty sure this will fix my 2021 GMC Sierra 3500 HD Crew Cab 6 1/2 V8, Turbo Diesel, 6.6 Liter the BandW Companion OEM 5th Wheel Hitch for Chevy/GMC Towing Prep Package - Dual Jaw - 25,000 lbs BWRVK3715
asked by: Zachary B
Expert Reply:
Hey Zach. So long as your 2021 GMC Sierra 3500 has the factory puck system in the bed, the 25,000 lbs B&W Companion OEM 5th Wheel Hitch item # BWRVK3715 will indeed fit. This hitch is designed to drop right down into the four built in pucks that are mounted above the rear axle.
We also have the 20,000 lbs B&W Companion item # BWRVK3710 if you don't need the higher capacity hitch. Along with the B&W Companion Slider item # BWRVK3775, which is recommended for turning clearance on short bed trucks like yours.
Does your Sierra have the factory puck system?
You can add this information and any other questions you have where it says Reply to Jerred H and I'll be happy to answer them.
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Product Page this Question was Asked From
B&W Companion OEM 5th Wheel Hitch for Chevy/GMC Towing Prep Package - Dual Jaw - 25,000 lbs
- 5th Wheel Hitch
- Fixed 5th Wheel
- OEM - GM
- 6250 lbs Vertical Load
- 25000 lbs GTW
- Double Pivot
- Standard - Double Jaw
- 16-3/4 - 18-3/4 Inch Tall
- B and W
more information >
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Jerred H.
10/30/2025
Hey Zach, did you get a chance to check whether your Sierra has the factory puck system in the bed? Once you confirm that, it’ll be clear which B&W Companion hitch will work best. Let me know what you find—I'm here if you need a hand narrowing it down.