Is there a 5th Wheel Adapter for a B&W Turnoverball Underbed Gooseneck Trailer Hitch?

Updated 12/08/2025 | Published 12/05/2025

Products Featured in This Question

B&W Turnoverball Underbed Gooseneck Trailer Hitch w/ Custom Installation Kit - 30,000 lbs

(4985)

$599.00

Curt X5 5th Wheel Base Rails Adapter for B&W Turnoverball Gooseneck Trailer Hitches - 20,000 lbs

(284)

$749.95

B&W Companion 5th Wheel Trailer Hitch w/ Slider - Dual Jaw - 20,000 lbs

(5662)

$1599.00

B&W Companion 5th Wheel Trailer Hitch - Dual Jaw - 20,000 lbs

(5662)

$1099.00

Question:

I have the 30klb rollover what do you have for 5th adapter

asked by: Richard M

Expert Reply:

Hey Richard. When you say 30klb rollover, do you mean the B&W Turnoverball Underbed Gooseneck Trailer Hitch like item # BWGNRK1012?

If so, we do have an adapter that mounts directly to the gooseneck receiver. It is the Curt X5 5th Wheel Base Rails Adapter for B&W Turnoverball Gooseneck Trailer Hitches item # 16310.

We also have a couple of options to attach a 5th wheel hitch directly to the gooseneck receiver. Which one you need is going to depend on whether you want a sliding hitch or a standard fixed 5th wheel hitch. I have listed both options below:

Sliding Hitch - B&W Companion 5th Wheel Trailer Hitch w/ Slider item # BWRVK3400-5W

Fixed Hitch - B&W Companion 5th Wheel Trailer Hitch item # BWRVK3500-5W

Do you have the Turnoverball Gooseneck Hitch? If not I'll need some additional information that you can add where it says Reply to Jerred H.

expert reply by: Jerred H

Curt X5
(click to enlarge)

Richard M.

12/8/2025

my rollover i do not see the part number. on the sticker it has 30k lbs gross weight and 7,500 max toungue. from the picture i would say yes that is a match. I would like to compare both. But 1st choice is the attachment to the gooseneck ball. My question is how secure and what is the load? the photos for the curt x5 are not clear. It seems to show other combinations of 5th wheel connections. Richard

Jerred H.

12/8/2025

@RichardM So long as you have a B&W Turnoverball with a square gooseneck receiver we're talking about the same platform. The Curt X5 5th Wheel Base Rails Adapter for B&W Turnoverball Gooseneck Trailer Hitches item # 16310 attaches directly to the square receiver of the Turnoverball. It provides a set of industry standard rails that have a 20,000 lbs capacity. You can attach most 5th wheel hitches to it with the exception of the ones listed towards the bottom of the product page. It will lock into the receiver like the gooseneck ball does with the pin being pulled from your driver's side rear wheel well. The B&W Companion Slider item # BWRVK3400-5W and standard item # BWRVK3500-5W attach in the exact same way as the Curt X5 item # 16310 and also have a 20,000 lbs capacity. Please note that none of the 5th wheel hitches or the adapter listed above will work with a rotating pin box like a Reese Sidewinder or Revolution. What year, make, and model is your truck? There's some restrictions on which vehicle's the Curt X5 item # 16310 will work with.

Richard M.

12/8/2025

the videos help explain the curt.

Richard M.

12/8/2025

The fixed seems the best option. Cool set up. Do you have a good used one in stock? Fixed Hitch - B&W Companion 5th Wheel Trailer Hitch item # BWRVK3500-5W

Jerred H.

12/8/2025

@RichardM I agree! It's pretty simple to use as well. We do not have any used B&W Companion 5th Wheel Trailer Hitch item # BWRVK3500-5W. These are solid and reliable hitches that do not get sent back. B&W does a great job of handling any warranty issues or defective/broken parts as well. Please note it will not work with a rotating pin box like a Reese Sidewinder or Revolution. The square receiver attachment point can't handle the stress of the pin box turning.