Hi Glen, It will depend on what the GVWR (gross vehicle weight rating) is of your trailer to determine which B&W 5th wheel to gooseneck adapter will work best for you. Fifth wheels and gooseneck trailers go off of pin weight instead of tongue…
Hey Fred! You will need to take some measurements to determine if you will have enough clearance with the B&W Gooseneck Pin Box #BW23RV. You can use the following formula: (A + B) - C = Clearance A = Distance from the gooseneck ball center to the…
Hey Jeff! The MORryde GooseTech 5th Wheel to Gooseneck Pin Box #MR97MV comes with a Demco eZ-Latch. The best option for a lock is the InfiniteRule Lock for Cast Demco eZ-Latch Trailer Couplers #IR66FR. This is designed to for a standard coupler but…
Hi David, that’s a really good question and I’m glad you’re looking at the bigger picture here, because this is exactly where people start thinking about long term stress and not just whether something will fit. Before I get into that, The Gen-Y…
Hey John, this is a great question. I asked B and W about whether or not the B and W Fifth Wheel to Gooseneck adapter part #BW73RV would void the frame warranty and they said it has been extensively tested and engineered to provide a smooth, stable…
Hey Dave! Yes, your 2024 Brinkley Z3100 can use the B&W 5th Wheel to Gooseneck Pin Box like #BW73RV. This is designed for a Lippert 1621/1621HD bolt pattern. More than likely your Brinkley came equipped with a Rhino Box so the correct replacement…
Hey Peter, in general with a short bed truck you will need a slider hitch to make sharp turns but in recent years they have started making fifth wheel campers with more tapered noses and extended pin boxes to allow for short bed trucks to be able to…
I spoke with my contact at Trailair and from your serial number we were able to determine that your trailer came with a 1621 HD pin box which is a long pin box style. I was unable to obtain the exact part number for your Trailair pin box but from the…
Hey Bill, The Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box #GY48GR has an 18.08" measurement from the center of the coupler to the center of the first bolt holes. When switching to a gooseneck pin box from the Lippert Turning Point…
Hi Bruce; the MORryde GooseTech 5th Wheel to Gooseneck Pin Box #MR97MV doesn't have any real vertical movement. However, the rubber spring will still absorb and dampen road shock at the connection point within the pin box. The rubber sheer spring…
Hey Danny, this is a really great question but B and W states that their fifth wheel to gooseneck adapters like the part #BW83RV actually put less stress on the RV frame than a pin box so the warranty would not be affected. Lippert might take a…
Hey Steve, thanks for the pictures! I was able to use the S/N to identify the pin box, which is in fact the Rhino Box. I would choose the B&W Gooseneck Pin Box #BW23RV over the Shocker Hitch #SHK99YR for your 2026 Alliance Avenue 25RL. B&W…
Heard about you from a friend. I'm very impressed as to how fast my parts shipped. I was worried I wouldn't get them in time. I'm impressed. Thanks. Steven
5th Wheel Gooseneck Adapters that Replace Inner Tube
Swap your gooseneck to a 5th wheel hookup without changing hitches. These adapters replace the inner tube of your gooseneck coupler to add a kingpin for your in-bed 5th wheel hitch. Match your coupler's tube size and shape—like 4" round or 4" x 4" square—and confirm height settings to keep the trailer level, since a taller hitch can make the front ride high.
Yes, but some sliding or auto-slide hitches need the slide function locked out. Check your hitch instructions to confirm if it can be locked before using an inner-tube style adapter. If it can't be locked, consider a rail-mounted gooseneck solution instead.
Match the tube size and shape on your trailer. These adapters are commonly sized for 4" round or 4" x 4" square inner tubes. Check whether your pin holes are angled or straight and line up with the adapter's plate. Verify outer dimensions—some are intended to be 4" x 4" with minor variances. If holes are tight, you may need to enlarge them for your application.
Installation is generally straightforward. Ensure the inner tube slides in cleanly and that the pin or bolt holes align; enlarging holes may be needed in some cases. Some arrive unpainted, so plan to prime and paint to your preference. Before towing, inspect welds and hardware to confirm everything is fully welded and secure.
It can raise the front if your 5th wheel hitch sits high. Measure your hitch height and the coupler stack-up to avoid a nose-high stance. Try adjusting the inner tube position or hitch height if possible. If you can't level it, switching back to a gooseneck ball may be needed for that setup.
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5th Wheel Gooseneck Adapter Parts or Accessories
