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  1. Gooseneck and Fifth Wheel Adapters
  2. CURT
  3. Gooseneck Hitch to Fifth Wheel Trailer
  4. Hitch Adapters
  5. 20000 lbs GTW
  6. Connects to Gooseneck Hole
Curt X5 5th Wheel Base Rails Adapter for B&W Turnoverball Gooseneck Trailer Hitches - 20,000 lbs

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

Item # 16310
Retail:$894.95
Our Price: $704.95
You Save: $190.00
Gooseneck and Fifth Wheel Adapters
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16310 - 20000 lbs GTW CURT Adapts Truck
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Install this adapter in the square ball hole of your B&W Turnoverball gooseneck hitch to get above-bed base rails for your fifth-wheel trailer hitch. Universal rails provide attachment points in your truck bed for a standard fifth-wheel hitch. 1-800-940-8924 to order CURT gooseneck and fifth wheel adapters part number 16310 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt X5 5th Wheel Base Rails Adapter for B&W Turnoverball Gooseneck Trailer Hitches - 20,000 lbs. Gooseneck and Fifth Wheel Adapters reviews from real customers.
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  • Reviews (264)
  • Q & A (0)
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CURT Gooseneck and Fifth Wheel Adapters - 16310

  • Gooseneck Hitch to Fifth Wheel Trailer
  • Hitch Adapters
  • CURT
  • 20000 lbs GTW
  • Connects to Gooseneck Hole
  • Adapts Truck
  • No Offset
  • Fixed Height

Install this adapter in the square ball hole of your B&W Turnoverball gooseneck hitch to get above-bed base rails for your fifth-wheel trailer hitch. Universal rails provide attachment points in your truck bed for a standard fifth-wheel hitch.


Features:

  • Adapter mounts in your gooseneck trailer hitch to supply the above-bed base rails necessary for installing a 5th-wheel hitch
    • Works with B&W standard center Turnoverball hitches
    • Compatible with Curt, B&W, Demco Hijacker Premier Series, Draw-Tite, Hidden Hitch, Husky, Reese, and Valley above-bed 5th-wheel trailer hitches
  • Fast, easy installation
    • Drop adapter into square gooseneck ball hole and lock in place
  • Rubber pads help prevent the rails from rattling and sliding in the truck bed
  • Sturdy steel construction
  • Black carbide powder coat finish resists corrosion
    • Coated in liquid Aquence for superior durability and rust resistance
  • Assembled in the USA


Specs:

  • Gross towing weight: 20,000 lbs
  • Vertical load limit: 4,000 lbs


Notes:

  • Bed liners and bed mats may affect the fit of this adapter and trimming may be necessary
  • Will not work with fifth-wheel hitches or pin boxes that rotate.
  • Will not work with auto-slide fifth-wheel hitches.
  • Will not work with Husky 10-26K or 10-16K fifth-wheel sliders.
  • Will not work with B and W Patriot fifth-wheel sliders.
  • Will not work with Curt S20 sliders.
  • Will not work with any 2013 - 2016 Dodge Ram 3500 or 2014 - 2018 Dodge Ram 2500 trucks that have a B&W Turnoverball gooseneck hitch installed.
  • Will not work with any 2007 - 2016 Toyota Tundra truck that has a B&W Turnoverball gooseneck hitch installed.
  • Will not work with 2017 or newer Ford F-250 or F-350 trucks that have a B&W Turnoverball gooseneck hitch installed.
  • When using this adapter, you may have to remove the safety chain loops from your gooseneck hitch if they are mounted front/back rather than side to side.


16310 Curt X5 Fifth Wheel Adapter w/ Square Shank for B and W Turn Over Ball Hitches

Installation Details 16310 Installation instructions



Customer Satisfaction Score:


Customer Reviews

Curt X5 5th Wheel Base Rails Adapter for B&W Turnoverball Gooseneck Trailer Hitches - 20,000 lbs - 16310

Average Customer Rating:  4.7 out of 5 stars   (264 Customer Reviews)

Install this adapter in the square ball hole of your B&W Turnoverball gooseneck hitch to get above-bed base rails for your fifth-wheel trailer hitch. Universal rails provide attachment points in your truck bed for a standard fifth-wheel hitch.

by:

Great product! Ive pulled a 42' to Hell and back not one problem. It is heavy, but it's very solid. My fifth wheel hitch fit straight in. Way cheaper than having to put rails in if you have a factory ball hitch in the bed. Its It's also nice that it's removable so you can haul furniture, or things that can't sit crooked ect. Great product, should last forever. Definitely would recommend



by:

Received the Curt X5 B&W turnover ball adapter yesterday. Would have been easier to drop in with two people but I was able to do it myself. Dropped right in, and in less then 15 seconds it was dropped and locked. Saved me lots of install time on 5th wheel rails. Set my RBW lil' rocker hitch on and pulled my 10,000 lbs 32' 5th wheel across town without issue. I feel that this is probably the strongest way to go when running a 5th wheel to turnover ball adapter, and its only about $*** which is a fraction of the cost for those other weird complex adapters that side load or flex. Customer feedback was great with optimal response time on my questions.



by:

I purchased the curt X5for my F250 Super Duty. Install and removal are a breeze. Holds mu 5th wheel plate great. Pulled 7000 miles a month after install.



by:

Finally installed this with my older Reese hitch. It rocked a little side to side and up and down. I was a little concerned but,once the trailer was hitched up,it worked pretty well.seems pretty solid going down the road. A good alternative to omitting a gooseneck.



by:

I feel the product works as it is intended but I did have a hard time setting it low enough for the pin to engage without using the weight of the trailer to push down on the Curt

Etrailer Expert

Brooke M.

11/11/2022

Many times the hitch head is adjustable. You may be able to adjust the height there, and also the king pin is commonly adjustable as well.

Juan

11/9/2023

It was been working great. One installed I haven’t had to remove it.



by:

I cannot not say enough about trailer. Always have had my back with price,knowledge, and the best customer service.
I have the Curt X5 Adapter and love it.
I have it coupled to the Q24 her hitch
My tow vehicle is a 2013 GMC 3500 Dually 4WD and tow a 40' 18k 2012 Keystone Raptor



by:

Solved a problem for me allowing me to use my gooseneck receiver and allows both types of hookup in a safe and manageable way.



by:

This is just what I was looking for, already had Curt R5 slider hitch, put B&W hitch on new truck. Tried a gooseneck adapter, but too much flex. Went back to 5th wheel hitch. This adapter is built heavy, weighs over 100lbs by itself. I pull a 14,000lb toy hauler, with a F250 shortbed, needed the slider. I feel much safer with this product. Ordered from e.trailer, shipping was right on, only 3 days.



by:

Hole didn't line up.
I had to fill out
to allow release/lock pin to engage in hole.



by:

Managed to get my hands on a curt E16 5th wheel hitch and couldn’t be happier with the combination. The drop in weighs 100lbs and is honestly really easy to install. The hardest part is getting it from where it’s stored to the back of the truck.



by:

Received product 4 days after ordering with free shipping. Seems really well made. No noises or clunks when towing. It dropped right in to my b&w gooseneck and my Reese 5th wheel dropped directly into it. Good product.



by:

The only issue was the outer cross braces of this base interfere with the B&W 16K Patriot 5th wheel hitch. I had to grind off about a 1/2" by 1" triangle on the lower Patriot bracket (each side) so it could sit flush on this base where the pins could be attached. Otherwise, I really like the simplicity of this design.



by:

Really impressed with the quality of the Curt product. Worked out great, fitting my new to me 98 Dodge 3500. Thanks etrailer.



by:

Definitely does the job if you already have the goose neck and need the 5th wheel rails.



by:

This was super easy to install, and recently when we were pulling an 9,000 lbs 5th wheel, it performed flawlessly. well worth the money, and with the added bonus of keeping our Goose-neck hitch for our Hay trailer.



by:

Very polite and helped with order to get the correct fifthwheel plate to fit my truck, and made every step easy for purchase, very pleased it fit exactly as describe, I can appreciate everything very much .
Thank you
Rodney Bergman



by:

Fits right in. Just what I needed to use the hitch I already owned wit my B &W gooseneck. Awesome price also.



by:

Items arrived intact in original packaging, hitch components are well built for heavy duty applications also arrived ahead of the projected date. UPS gave regular updates of travel location and delivery date.

Tim

11/2/2022

Heavy duty, tight fit, no rattle. Thanks



by:

I love this hitch adapter. I mostly pull gooseneck trailer, but occasionally I need to pull a fifth wheel. Easy to get in and I haven't had any problems getting it back out when I was done with it.



by:

The hitch is just what I needed at a good price. Delivery was FAST and no shipping for such a heavy part.



by:

I recently purchased a used '08 Ford F-350 with a B&S turnover gooseneck hitch. I wanted to use a Reese 16k hitch that I already own and put it in this truck without doing the typical bed rails to attach the fifth wheel hitch. I contacted Etrailer and they quickly identified the Curt X5 adapter to solve my issue. Ordered new adapter and in 3 days I had the unit and everything fit perfectly. This is the second time I have dealt with Etrailer in the last 6 months and I continue to be impressed with all aspects of this company. I'm glad I found Etrailer 6 months ago when I was looking for trailer hub and brake parts. I knew just who to turn to with my latest needs. Thanks Etrailer!

Joe S.

7/3/2016

Great. Works well to allow me to go from goose neck to fifth and back again with ease. Very satisfied!



by:

Customer service was great and my item was delivered fast. I would recommend etrailer



by:

I would recommend this product to everybody, excellent price and it only to me and my son five minute to install.



by:

Ordered Curt X5 Fifth Wheel Adapter for my B&W Square Shank Turnover Ball Hitch and received it in two days. Had it installed in my trucks in a matter of minutes. Just pulled out the ball and inserted the adapter, no holes to drill in my truck bed and simply unpin it and remove it to have full use of my bed. Love it!

Wayne H.

5/30/2016

It is great! Just got back from a 4800 mile trip and unhooked my fifth wheel and pulled the pin and removed everything from my truck bed. The only way to go!



by:

Great product! Fit right in and ready to go in just a few minutes. Can't be happier....


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Show More Reviews

See what our Experts say about this CURT Gooseneck and Fifth Wheel Adapters

  • Does Curt X5 Adapter for Turnoverball Gooseneck hitches Fit Curt Slider Hitch C16560
    Yes, the Curt X5 Turnoverball Adapter part # 16310 does fit the Curt Slider part # C16560. This provides the same style rails that the C16560 is designed to fit.
    view full answer...
  • Gooseneck Hitch and Adapter Needed for Curt Q24 5th Wheel Hitch on a 2019 Ford F-350 Dually
    I do have a solution for you, but the Curt X5 # C16210 is designed for Curt Double Lock Gooseneck Trailer Hitches which have an existing slide bar that locks the gooseneck hitch ball in place. Since the Curt Gooseneck Hitch # C60700 is designed for a self-locking hitch ball, like part # C60629, it means that the Curt gooseneck isn't compatible with the X5. The only gooseneck hitch that fits your 2019 Ford F-350 Dually that you can use with an adapter is the B&W Turnoverball Underbed Gooseneck...
    view full answer...
  • Gooseneck to 5th Wheel Adapter for 2006 Ram 3500 with Valley Stow-A-Ball or Similar Gooseneck Hitch
    In 2006 Ram trucks did not come with a factory gooseneck hitch. That would have been a dealer option. Based on your picture it appears to be a Valley Stow-A-Ball hitch or something very similar. What I recommend to tow a 5th wheel trailer is to use the Demco Recon # DM8550045. This hitch attaches to a standard 2-5/16 inch gooseneck ball regardless of brand. It is rated for 21,000 pounds, and since it has an actual 5th wheel hitch head it provides a safer connection than other adapters. Another...
    view full answer...
    Image 1 for
  • 5th Wheel Hitch Will Not Line Up With Adapter for B&W Gooseneck
    I do have an option for you but I am not sure that you have a B&W 5th Wheel Hitch as they only offer one mounting option for industry standard rails, the B&W Patriot which is not that old and this would have no problem installing onto either the Curt X5 5th Wheel Base Rails Adapter part # 16310 or the Demco 5th Wheel Base Rails Adapter for B&W Turnoverball Gooseneck Hitches part # DM6140 if done so correctly. I think the hitch you have does not use industry standard mounting holes if...
    view full answer...
  • Will The Curt X5 Base Rails Adapter Fit My 2002 Dodge Ram 2500 Truck?
    The Curt X5 5th Wheel Base Rails Adapter # 16310 is designed to be used with the B&W Turnover Ball HItch # BWGNRK1394 on your 2002 Dodge Ram 2500. The B&W Turnover Ball # BWGNXA2000 is the only square ball that flips over and stores inside the hitch that I am aware of. You can confirm this by verifying that the square shank is 2-1/2" wide, 4" tall with a 11/16" hole centered in the square shank for the locking pin.
    view full answer...
    Image 1 for
  • Adapter to Tow a 5th Wheel Trailer with a B and W Square Shank Turnover Ball Trailer Hitch
    B and W does have a square shank turnover ball gooseneck hitch with the ball that pins in at one spot on the ball shank. If you determine that is what you have then the Curt X5 adapter, # 16310, would be correct and it is compatible with a Reese slider 5th wheel trailer hitch. However. it would be less expensive to replace the gooseneck hitch with a 5th wheel installation kit (provided you do not use the gooseneck hitch). This is also safer because there are less components chained together...
    view full answer...
  • Gooseneck to Fifth Wheel Hitch Adapters Compatible with Round Shank Curt Receivers
    We have a solution that will give you the ability to use a fifth wheel adapter with the Curt gooseneck hitch you have in your truck, but there is nothing that will allow your B&W Companion hitch to fit into the round ball hole on your gooseneck hitch. We do carry the Curt X-5 Hitch Adapter Plate, part # C16210, that is designed to work with your Curt hitch. This adapter comes with the round shank needed for the gooseneck hitch you have installed in your vehicle. Once this adapter I installed,...
    view full answer...
  • Will Demco Hijacker Autoslide # DM8550034 Fit Curt X5 Base Rail Adapter # 16310
    I do have a great option for you, however the Curt X5 5th Wheel Base Rails Adapter # 16310 is not compatible with the Demco Hijacker Autoslide Hitch # DM8550034 that you referenced. There is actually not a base rail adapter for the B&W Gooseneck Hitch available that will work well with an auto-sliding hitch. These types of hitches simply put too much torque onto the adapter rails when they are sliding which leads to an unsafe setup. If you have a B&W Gooseneck Hitch installed on your...
    view full answer...
  • Recommended Fifth Wheel Slider To Work With 2011 Ram 2500 With B&W Turnoverball Gooseneck Hitch
    The Demco Autoslide, part # DM8550034 cannot be used with any adapter that fits in a gooseneck ball hole, because the base plates have to be securely bolted to the truck. The Curt X5, part # 16310 attaches to the B&W gooseneck hitch and provides bed rails but cannot be used with the Demco slider. I do have a solution for you though. I recommend the B&W Companion Slider Gooseneck-to-5th-Wheel Trailer Hitch Adapter, part # BWRVK3400. Since you have the Turnoverball gooseneck hitch already...
    view full answer...
  • Are Pin Holes of Curt X5 Adapter Supposed to be Oblong Shaped
    That's maybe not a great sign. Is there anyway I could get pictures of the wear you are seeing so that I could forward to the manufacturers and see what they think?
    view full answer...
    Image 1 for
  • Towing a 5th Wheel Trailer with a Gooseneck Hitch in a 2009 Ford F-350 King Ranch Diesel
    There are different adapters that will allow you to tow a 5th wheel trailer using a gooseneck hitch. Probably the easiest is going to be the Anderson Ranch Hitch # AM3100. I have included some links to videos on this adapter for you. If you know the manufacturer and model of gooseneck hitch that is in your 2009 Ford F-250 I can determine if there are any other adapters that would work directly with it.
    view full answer...
  • Fifth Wheel Hitch Adapter Recommendation for a B and W Turnover Gooseneck Hitch
    No, the Curt X5 Fifth Wheel Adapter for B and W Square Shank Turnover Ball Hitches # 16310 that you referenced will not work with Husky 16k Roller hitches. If you have a B and W Turnover gooseneck hitch installed on your vehicle you would need to get the B&W Companion Slider Gooseneck-to-5th-Wheel Trailer Hitch Adapter # BWRVK3400.
    view full answer...
  • 5th Wheel Base Rail Adapter for B&W Gooseneck Hitch
    To have the equivalent of industry-standard 5th wheel base rails in your pickup that has a square-shank B&W gooseneck hitch ball in the bed you can use Curt's X5 adapter # 16310. This 20K-rated adapter drops right in to the square ball hole of your gooseneck setup.
    view full answer...
  • Gooseneck Hitch to Fifth Wheel Adapter for 2011 Ram 3500
    If you are looking at the Curt X5 # 16310 then you have the B&W Turnoverball Gooseneck # BWGNRK1313-5W. If that is the case, the hitch I strongly recommend won't require any adapter. You will want the B&W Companion # BWRVK3500-5W or # BWRVK3400-5W if your Ram is a short bed and you need a sliding hitch. The Companion is considered by many to be the highest-quality fifth wheel hitch available. With nearly 400 reviews from customers who have purchased it, the Companion has gotten a nearly...
    view full answer...
  • Parts Needed to Tow a 25,000 Lb 5th Wheel Trailer with a 2018 Ford F-350
    I do have both gooseneck and 5th wheel hitch options for your 2018 Ford F-350 but you will need to choose between one or the other. As you mentioned, the B&W Companion part # BWRVK3500 for fixed or part # BWRVK3400 for sliding is only rated at 20,000 lbs. They do make adapters like part # 16310 but they also only have a 20,000 lb towing capacity. The correct B&W Turnoverball Underbed Gooseneck Trailer Hitch for your F-350 is part # BWGNRK1116. It has a 30,000 lb towing capacity. I have...
    view full answer...
  • Recommended UnderBed Hitch for a 2008 Dodge Ram 3500
    Yes, we do have an underbed hitch for your 2008 Ram 3500. It is the B&W Turnoverball Underbed Gooseneck Trailer Hitch w/ Custom Installation Kit item # BWGNRK1313. This underbed system installs in existing holes in your Ram's frame. It will provide you with a mounting point to attach the B&W Companion 5th Wheel Hitch item # BWRVK3500. Of if you already have a 5th wheel hitch that attaches to industry standard rails you can use the Curt X5 Adapter item # 16310. I have linked an installation...
    view full answer...
  • Will the Curt X5 for B&W Gooseneck Systems Work w/ a Reese Sliding 5th Wheel Hitch?
    Yes, the Curt X5 5th Wheel Base Rails Adapter for B&W Turnoverball Gooseneck Trailer Hitches item # 16310 will work with Reese Slider Hitches. This adapter will only work with the square receiver B&W underbed gooseneck hitches.
    view full answer...
  • Can The Brackets For A Turnoverball Hitch Be Used For A Base Rail Kit In A 2010 Ford F-350
    You won't be able to have both the Turnoverball hitch and a base rail kit installed on your 2010 Ford F-350 at the same time since they utilize the same space for mounting and the brackets between the two systems are not compatible with each other. Normally, I'd just recommend an adapter like the Curt X5 # 16310 that would drop into your Turnoverball hitch and give you base rails, but you have a 6.5' bed so you'll need to use a sliding hitch to prevent the nose of your fifth wheel from...
    view full answer...
  • 5th Wheel Hitch Options for Pickup with B&W Gooseneck Hitch Installed
    5th wheel base rails use standardized dimensions and spacing to allow for a 5th wheel from one maker to work fine in base rails from another hitch. The Curt X5 Adapter # 16310 shares these standard rail dimensions but it cannot be used with slider hitches like the Husky, only with fixed (non-sliding) hitches. If you have a B&W gooseneck hitch already installed in your truck the better option is to use their mating Companion hitch # BWRVK3500 for a long bed or their slider version # BWRVK3400...
    view full answer...
  • Can Curt X5 Be Used With Andersen Ultimate In 2016 Ford F-350 With B&W Gooseneck Hitch Installed
    It is not recommended to use two adapters at the same time. The added stress of a second adapter could cause damage to the adapters or the trailer. The Curt X5, part # 16310 is designed to work with the B&W gooseneck you said is in the bed of your F-350. This adapter will work with Curt, B&W, Demco Hijacker Premier Series, Draw-Tite, Hidden Hitch, Husky, Reese, and Valley above-bed 5th-wheel trailer hitches.
    view full answer...
  • Draw-Tite High-Rise Fifth Wheel Hitch Compatibility With B&W Gooseneck on 2018 Nissan Titan XD
    The Hi-Rise Gooseneck-to-5th-Wheel Trailer Hitch Adapter # 9480 comes with the square adapter to give you compatibility with the B&W gooseneck # BWGNRK1217 in your 2018 Nissan Titan XD. If you wish to use another style of 5th wheel hitch, you can alternatively use the Curt X5 5th Wheel Base Rails Adapter for B&W Turnoverball # 16310 which will give you industry standard rails compatible with most 5th wheel hitches.
    view full answer...
  • Adapter to Tow a 5th Wheel Trailer with a Hide-A-Goose Gooseneck Trailer Hitch
    There is only one adapter that will fit in the Hide-A-Goose gooseneck trailer hitch ball hole; the Hi Rise # 9480. None of the other options are confirmed to fit. Another option is to keep the gooseneck ball in place and use the Anderson Ranch Hitch # AM3100. I have included a link to a video showing how this adapter works.
    view full answer...
  • Why Cant Auto-Slide 5th Wheel Hitch Be Used with B&W Turnoverball to Rail Adapter
    There is too much extra stress that auto-sliding fifth wheel hitches put on the single connection point to be made compatible with an adapter like the Demco 5th Wheel Base Rails Adapter for B&W Turnoverball part # DM6140 or the Curt X5 5th Wheel Base Rails Adapter for B&W Turnoverball part # 16310. That said, this is not our rule, the note comes directly from the fifth wheel hitch manufacturer so if you would like more information on this you will need to reach out to them directly. Therefore,...
    view full answer...
  • Can Curt X5 Gooseneck Adapter # 16310 Fit with Spray in Truck Bed Liner
    Spray in bedliners are not normally an issue for with the Curt X5 adapter part # 16310 that you mentioned. Most of the people who use this adapter have one and the adapter itself is height adjustable to compensate for the extra thickness. I attached a picture that shows this installed in a truck bed with a spray in bed liner for you to check out as well.
    view full answer...
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