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

Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs

Part Number: C16210
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$704.95
Retail:$894.95
You Save: $190.00
5th Wheel Gooseneck Adapter
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Install this adapter in the round ball hole of your Curt Double Lock 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 5th wheel gooseneck adapter part number C16210 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 Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs. 5th Wheel Gooseneck Adapter reviews from real customers.
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  • Reviews (270)
  • Q & A (0)
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  • Used (4)

CURT 5th Wheel Gooseneck Adapter - C16210

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

Install this adapter in the round ball hole of your Curt Double Lock 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 Curt Double Lock, Flip and Store gooseneck 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 round gooseneck ball hole and lock in place
  • Rubber pads help prevent the rails from 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 B and W Patriot fifth-wheel sliders.
  • Will not work with Curt S20 sliders.
  • 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.
  • Will not work with Curt CrossWing 5th-wheel hitch


16210 Curt X5 Fifth Wheel Adapter w/ Round Shank for Curt Double Lock, Flip and Store Gooseneck Hitches

Installation Details C16210 Installation instructions



Customer Satisfaction Score:


Customer Reviews

Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs - C16210

Average Customer Rating:  4.7 out of 5 stars   (270 Customer Reviews)

Install this adapter in the round ball hole of your Curt Double Lock 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:

I like this set up because I can use the goose neck set up when needed a d install the 5th wheel when I need to pull my rv trailer. Easy to change from one to the other



by:

Product will not lock in to place . Mount system shown is exactly what it said needed to be but rails are flush against the bed of truck and shaft is still about 3/16 to 1/4 inch from where the locking pins slide threw.



by:

This product fits my fifth wheel hitch well and fits in the truck hitch as well. Have not pulled with it yet as winter storms are here. I expect it to work well. Expensive for as simple as it is. Hoping it is built well. Nice That I was able to get a used one at a reduced rate. Missing the pads so we’ll see what kind of a difference that makes. Very happy with etrailer as a distributor. They make the purchase easy and quick free delivery. They Always follow up on my satisfaction with my purchase’s.

Eric

12/22/2023

This hitch fits well and has worked as intended. I have not been able to use much since the install, but I’m looking for looking forward to its future use.



by:

Fits perfectly into curt goose neck hitch. My reese 5th wheel hitch fits on the rails perfect. I haul dirt bikes in my truck so being able to take the rails out is perfect..... nothing in the way of loading or unloading

Mike

5/11/2014

Will the Curt gooseneck to 5th wheel rails adapter work with a Pro Series Slider 5th wheel? That is, will the slots match up?

Patrick B.

5/19/2014

Yes. The tab slot spacing is pretty universal amongst most manufacturers including Curt and Pro Series. Your Pro Series slider will drop right in to the the Curt X-5 adapter.


by:

Best thing for someone who uses the entire bed of their truck. Does not make anymore noise than a standard rail kit.



by:

Overall the adapter works excellent. I did have a couple problems at first.
First I had problems installing it. Not the adopters fault. My gooseneck receiver was too low. I had to loosen all the bolts then get a port of power underneath and push it up as far as I could, to get the adapter to lock in place. Then I retightened all the bolts.
Then my hitch would not work with this Curt adapter. When sliding my hitch it hit the center dome of the adapter. Very fortunately I had a friend who had a Curt slider hitch. He sold it to me very reasonably and then everything work perfect.
The first time I tried to remove the hitch and adapter assembly I could not get it unlocked. Had to put down pressure get the Bucket of my tractor, turn it unlatched. Had to do the same when installing to get it to latch. After pulling the trailer a couple times everything works excellent. And I actually like my new/used Curt fifth hitch over my previous Fifth wheel hitch.



by:

I use this on a 3500 Silverado which come with an original spray on bed liner. This makes my fifth wheel adapter very hard to hook to the goose-neck hitch. I virtually have to undo the main bolts and then torque them again after the adapter is hitched.

Upon my complaint, I was told to simply cut out the bed-liner???? Imagine!!!!

Once mounted, the fifth wheel hook up work just fine. I am lucky to own a pneumatic impact gun though....



by:

Love my Curt C615-632 under bed rail kit, and Curt C16210 5th Wheel adapter. This is easy to use, and I can maximize the use of my box when not towing. The installation is clean with a small 4" cap when not towing. I was so happy with the product, I have purchased another C615-632 for my new truck also



by:

Works great, lines up perfect, and when the rails get in your way trying to use your truck bed; you just pull it out.

Matt

11/27/2022

Only gets used a couple times a year but still looking good and working great.



by:

After using this adapter for a year it's proven to be durable and easy to use. It's nice not having those rails in the bed of my truck! If there is a draw back it would be weight as far as installing it when you're ready to use it but you can't expect it to be light weight when it has to perform a job like handling a heavy fifth wheel. I recommend it highly!



by:

Fits a little loose but all in all ez install great solution to utilize all Towing capabilities



by:

Great price shipped fast



by:

Part fit perfectly!!



by:

Had to use chain and a cheater pipe to seat this in the gooseneck, but it’s better than being loose. Mounted a Curt A20 on it and it pulls a Keystone Montana like a dream



by:

Adaptor works great! Unless you have a bed liner the holes don’t line up. Have to use weight of trailer to pull pin and insert pin.



by:

Has to much side to side play. Unit doesn’t lock down for a solid pulling experience. I had to go another route.

Etrailer Expert

Jenny N.

1/7/2022

I will have our customer service team reach out to you. I do have a few recommendations for you. Bed liners and bed mats may affect the fit of the adapter and trimming may be necessary. This system will not work with fifth-wheel hitches or pin boxes that rotate, nor auto-slide fifth-wheel hitches.



by:

Very prompt service placed my order two days later my hitch arrived,no hidden costs,put hitch adapter in my truck in minutes and am ready to go. The sales person was very knowledgable and professional not pushy like some internet sales sites. Will definitely be my go to place for parts in the future.



by:

I like Curt products this adapter was ez install I also bought the E16 5th wheel assembly now I can move my 5th wheel camper without worry
Very fast free shipping



by:

As described arrived quickly.



by:

Product is made great, fit as described and arrived quickly.



by:

Charles was very helpful in answering my question promptly and saved us a lot of money another company led up to believe was necessary to spend. Shipping was fast and overall great experience. Will look here in the future when the need arises. Thank you!



by:



by:

Great design great price all works as it should.



by:

Great product !! As advertised.



by:

Works as it should


25
270
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See what our Experts say about this CURT 5th Wheel Gooseneck Adapter

  • Adapter Rails Needed To Mount A B&W Patriot Slider In A 2017 Ram 2500 With OEM Puck System
    To mount your B&W Patriot 5th Wheel Trailer Hitch w/ Slider # BWRVK3270 in the bed of your 2017 Ram 2500 with an OEM puck system you'll need the Curt Adapter Rails # C29BR. This will lock into the pucks and provide base rails for your hitch to mount to. I've attached a customer review picture below where they also used this with a Patriot slider.
    view full answer...
    Image 1 for
  • Recommended 5th Wheel Hitch for a Curt Underbed Gooseneck Hitch
    B&W does not but I have something that is comparable. B&W's Turnoverball systems and their Companion hitches work exclusively with each other and are not compatible with other gooseneck hitches like your Curt item # C611-624 or item # C607-604. They have a square receiver over a circular one. To connect a 5th wheel hitch to the Curt gooseneck ball in your 2016 Chevy Silverado 2500, I recommend the Demco Recon Gooseneck-to-5th Wheel Trailer Hitch Adapter item # DM8550045. This 5th wheel...
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  • Are Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock and EZr Cross-Compatible
    The Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock part # C16210 and Curt X5 5th-Wheel Base Rail Adapter Plate for EZr part # C16220 are very similar, but not the same. The shaft is a bit longer on the EZr model so it won't work correctly if used on the Double Lock.
    view full answer...
  • Does the Curt A20 with A20 slider base 16500 work
    Did you mean the 16550? There is no A20 slider base 16500, but in any case, the X5 is only compatible with the R20 slider, the Curt A20 5th Wheel Trailer Hitch w/ R20 Slider # C16541. The S20 slider is NOT compatible with the X5, so you'd need the R20 slider for the Curt X5 5th Wheel Base Rails Adapter # C16210, # C16220, or # 16310.
    view full answer...
  • 5th Wheel To Gooseneck Adapter Using A Draw-Tite Underbed Gooseneck Hitch
    I do have some options available for you however, the Curt X5 5th Wheel Base Rails Adapter part # C16210 is not compatible with the Draw-Tite Underbed Gooseneck Hitches. Unfortunately, there are not any 5th wheel adapter plates that fit the Draw-Tite gooseneck therefore, you have two options. You can use a 5th wheel to gooseneck pin box adapter like the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter part # CAB-C5GX1216 which has a 7-1/2" offset to account for turning clearance. The...
    view full answer...
  • Will Curt X5 Adapter Work on Gooseneck Hitch Installed on a Flatbed Truck
    If the top of the mount for the ball on Curt gooseneck hitch # C60734 is flush with the bed like it would be on a regular pickup truck then the X5 adapter # C16210 will fit. But if it is recessed then the shank on the X5 adapter will not be long enough to reach and properly fit in the gooseneck hitch. In that situation there are other adapters you could use such as # CAB-C5GX1216.
    view full answer...
  • Curt x5 Adapter Compatibility with Gooseneck Hitch in 2015 Ford F-250
    The Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs # C16210 is only designed for the Curt Double Lock Gooseneck Hitch that has the dual pins to latch the hitch ball in place. If you don't have the Double Lock model like # C60720 then that adapter isn't the correct fit and may have issues. Small rotation if not directly tested together could cause issues but some "play" in adapters is also to be expected so I can't confirm if the amount...
    view full answer...
    Image 1 for
  • Can The Curt X5 Adapter Be Used In A 2022 Ford F-250 With The Factory Prep Package?
    As the Curt X5 5th Wheel Base Rails Adapter # C16210 is designed for use with the Curt Double Lock Gooseneck Trailer Hitch, it does use a different style of mechanism in the shank to secure it in the bed. I included pictures of what I mean. With that being said, the X5 cannot be used with factory puck systems, unfortunately. However, I do have another option. The Adapter Rails for Curt 5th Wheel Hitch # C88KR is designed specifically to fit your pucks and will snap right into place. This...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Is the Curt X5 5th Wheel Base Rails Adapter for Curt EZr Double Lock Offered with Offset
    The Curt X5 5th Wheel Base Rails Adapter part # C16210 is not offered with an offset. If you need additional turning clearance then it can be used with a sliding fifth wheel hitch like the Curt A16 5th Wheel Trailer Hitch part # C16521 which is what I recommend. That said, it is always best to measure the turning clearance before deciding whether or not a slider hitch is needed or you could get away with the Curt A16 5th Wheel Trailer Hitch part # C16120.
    view full answer...
  • Fifth Wheel to Gooseneck Hitch Adapter for Trailer with Leland 7921 Pin Box
    For a Leland pin box the best fifth wheel to gooseneck adapter is going to be the Convert a Ball part # CAB-C5G that you referenced. Only issue is that since you have a short bed truck you aren't going to have great turning clearance. Ideally you'd have a hitch that a rail adapter could fit like the X5 part # 16310 for B and W hitches or the # C16210 for Curt double lock hitches so that you could use a slider hitch like the Curt A20 Slider part # C16541.
    view full answer...
  • Will Curt Q24 Fifth Wheel Hitch Work With Curt X-5 Adapter
    The Curt X-5 Fifth Wheel Adapter, part # 16310 is designed to fit B And W Square Shank Turnover Ball Hitches. If you have the B And W installed in your vehicle, the X5 will work well for you. The weight capacity of this adapter is 20,000 lbs. If you have the Curt Double-Lock, Flip and Store gooseneck hitch, you would use the Curt X-5 Adapter, part # C16210. If you have a Curt EZr Double-Lock gooseneck hitch, the adapter you need is part # C16220. The Curt Q24 5th Wheel Trailer Hitch,...
    view full answer...
  • Adapter Options to Convert Curt Gooseneck Hitch to Fifth Wheel Rail Kit
    Curt has fifth wheel rail adapters for their gooseneck hitches like the part # C16210 for if the hitch is a double lock gooseneck or the part # C16220 for if it's an EZr style. The easy way to tell if your hitch is an EZr or a double lock is to look at the sides of the hitch ball. If there is a slot that runs between the ball holes it's EZr (see first picture. If there is only two holes it's a double latch (second picture). Then you can install a fifth wheel hitch like the A16 slider part...
    view full answer...
    Image 1 for Image 2 for
  • Curt X5 Adapter for a Double Lock, Flip, and Store Gooseneck Trailer Hitch
    Yes, the Curt X5 adapter, # C16210, will work with your Curt Double Lock, Flip and Store Gooseneck Hitch # C60607. Curt offers a few different X5 adapters but the one for the Double Lock, Flip, and Store hitches is # C16210.
    view full answer...
  • Does Install of Curt X5 Adapter C16210 Require Trimming of Bed Liner
    The Curt X5 5th Wheel Base Rails Adapter # C16210 that you referenced does require that the bed liner be trimmed out of the way so that it can fit properly. Since you have a bed liner and yours doesn't want to fit properly you'll need to trim it so that it can fit.
    view full answer...
    Image 1 for
  • Recommended Gooseneck-to-5th-wheel Adapter For A 2013 Ram 3500 Short Bed
    There is an adapter that you can use with your 2013 Ram 3500, however there is not an adapter that will work with your existing gooseneck setup and provide pucks. Instead, you'd be adding industry standard above-bed rails. The Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs # C16210 will work for you if you have a standard gooseneck ball hole, and # 16310 will work if you have the square B&W Turnoverball square ball hole. Since these rails...
    view full answer...
  • How to Tell the Difference Between the Curt Double Lock & EZr Gooseneck Hitch
    If you could send me a picture of the gooseneck hitch you have installed in your 2017 GMC Sierra 2500 then I would be able to make a more educated guess but based on your description you have the Curt Double Lock Gooseneck Hitch part # C607-604 and the correct adapter would indeed be part # C16210. However, if the gooseneck hitch was installed at the dealer then you would have had the Curt EZr Gooseneck Hitch part # C611-624 and the correct adapter would be part # C16220. I have attached...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Does the Curt Q Series Hitch Work with the Curt X5 Base Rails Adapter for Curt DoubleLock
    Yes; the Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs # C16210 is compatible with a Curt Q16 hitch.
    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...
  • Fifth Wheel Hitch Adapter Recommendation for a Draw Tite Hide a Goose Gooseneck Hitch
    I have a solution for you, but the # C16210 will not fit a Draw Tite Hide a Goose as it only will fit Curt gooseneck hitches. Instead you would want the Draw Tite Hi Rise part # 9480 as it will fit your Hide a Goose hitch and will provide you with a fifth wheel hitch.
    view full answer...
  • Can a Rotating Pin Box be Used with the Curt X5 C16210?
    The Curt Curt X5 5th Wheel Base Rails Adapter # C16210 cannot be used with a rotating pin box due to the stress on the connection point, which is the gooseneck hitch ball opening, will be too great. This can cause a catastrophic failure, ending in disaster.
    view full answer...
  • Comparing Curt X5 5th Wheel Base Rail Adapters and Compatibility with Draw-Tite Gooseneck
    The differences between the Curt X5 adapters is what they will fit. X5 adapter # C16220 fits Curt EZr Double-Lock gooseneck hitches. And X5 adapter # C16210 fits Curt Double Lock, Flip and Store gooseneck hitches such as # C60720. The biggest difference to note is the shank from the bottom of the adapter is a different length. The # C16210 has a shank that is 4.41 inches long and the # C16220 has a shank that is 4.66 inches long. So the difference in the length also means the hole...
    view full answer...
  • Will the Curt X-5 Gooseneck-to-5th-Wheel Hitch Adapter Plate Work with Any Gooseneck Hitch
    The Curt X-5 Gooseneck-to-5th-Wheel Hitch Adapter Plate, item # C16210, will only work with the Curt Double-Lock, Flip and Store gooseneck hitch. Once the adapter plate is installed, the adapter plate will accept Curt, Reese, Draw-Tite, Hidden Hitch, Valley or Husky fifth-wheel Hitches. Curt also makes the Curt X5 Fifth Wheel Adapter, item # 16310, for B&W Square Shank Turnover Ball Hitches. This adapter only works with the B&W Square Shank Turnover Ball gooseneck hitch. No extra support...
    view full answer...
  • Difference Between Item # C16220 and Item # C16210 And Are They Interchangeable With Each Other
    The only difference between Item # C16220 for EZr hitches and Item # C16210 for Curt double lock hitches is the shaft on Item # C16220 is going to be 3/8" longer than the shaft on Item # C16210. I would not recommend trying to use Item # C16220 on a hitch designed for Item # C16210. With the shaft being a little longer, the rails may not sit flat on the bed. If you tried using Item # C16210 on an EZr hitch the pin holes would not line up because of the shorter shaft.
    view full answer...
  • Solution for Towing 5th Wheel Trailer with Curt Double Lock Gooseneck Hitch
    I do have a solution for a more secure setup to tow a fifth-wheel trailer, however the B&W Companion # BWRVK3500 that you referenced is not compatible with your Curt Double Lock Gooseneck Hitch. The Companion is designed specifically for the square ball hole that the B&W Turnoverball Gooseneck Hitches provide and cannot be adapted to fit your Curt system. I instead recommend using the Curt X5 Base Rails Adapter # C16210. This is designed to fit your Curt Double Lock Gooseneck Hitch and...
    view full answer...


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Used Items Available
Used Picture for Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs

Condition: Like New

Notes: May have damaged packaging or minor cosmetic blemishes.

$588.95
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Used Picture for Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs
Used Picture for Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs

Condition: Surface Scratches

Notes: Item has cosmetic scratches and is missing 3 of the pads that stick on the bottom.

$643.15
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Used Picture for Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs
Used Picture for Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs

Condition: Surface Scratches

Notes: Item has several scratches and scuffs and is missing the pads. Otherwise new and unused.

$690.92
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Used Picture for Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs
Used Picture for Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs
Used Picture for Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs

Condition: Installed

Notes: Item has been previouslt test fitted and has minor signs of install including scratches.

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