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  1. 5th Wheel Hitch
  2. CURT
  3. 16000 lbs GTW
  4. Above Bed Rails
  5. Sliding Fifth Wheel
  6. Standard - Double Jaw
Curt A16 5th Wheel Trailer Hitch w/ R16 Slider - Dual Jaw - 16,000 lbs
CURT

Curt A16 5th Wheel Trailer Hitch w/ R16 Slider - Dual Jaw - 16,000 lbs

Part Number: C16521
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$844.44
Retail:$1,489.95
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5th Wheel Hitch
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Heavy-duty 5th-wheel trailer hitch has interlocking jaws, a torsion head, and a color-coded lock indicator for safety and security. Non-binding slider ensures proper clearance during slow turns. Rails and universal installation kit sold separately. 1-800-940-8924 to order CURT 5th wheel hitch part number C16521 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt A16 5th Wheel Trailer Hitch w/ R16 Slider - Dual Jaw - 16,000 lbs. 5th Wheel Hitch reviews from real customers.
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  • Reviews (597)
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CURT 5th Wheel Hitch - C16521

  • 16000 lbs GTW
  • Above Bed Rails
  • CURT
  • Sliding Fifth Wheel
  • Standard - Double Jaw
  • Cushioned Double Pivot
  • 4000 lbs Vertical Load
  • 17-1/2 - 21-1/2 Inch Tall
  • 12 Inch Fore/Aft Travel

Heavy-duty 5th-wheel trailer hitch has interlocking jaws, a torsion head, and a color-coded lock indicator for safety and security. Non-binding slider ensures proper clearance during slow turns. Rails and universal installation kit sold separately.


Features:

  • 5th-Wheel hitch mounts in your truck bed so you can tow your 5th-wheel trailer
  • Interlocking 2-jaw system provides 360-degree jaw-to-king-pin contact
    • Less rattle and more security than slide-bar models
  • 3-Point indicator system - color coding tells you if hitch is ready to uncouple, couple, or tow
    • Lock indicators visible from cab
  • Fully articulating torsion head for controlled coupling and a stable, quiet ride
    • Self-aligns for easy hookup
    • Suppresses road shock
    • Reduces bothersome towing noise
  • Non-binding slider provides clearance required for short-bed pickups to turn safely at slow speeds
    • Prevents trailer from hitting the cab of your pickup during sharp, slow-speed turns
    • Slides smoothly on rounded, non-binding rods
    • Designed for use on trucks with beds shorter than 8'
      • Not recommended for use on truck beds shorter than 6'
  • Lockable handle lets you easily secure trailer to hitch with padlock (sold separately)
    • Single-throw operation
    • Self-resets to the ready-to-couple position after you uncouple your trailer
  • 2 Built-in zerk fittings for easy lubrication
  • Fast 1-pin head removal makes it easy for 1 person to remove hitch
  • Included plastic lube plate lets king pin glide smoothly into hitch during hookup
  • 4" Height adjustment
  • Simple installation with base rails and installation kit (sold separately)
    • Compatible with B&W, Curt, Demco, Draw-Tite, Hidden Hitch, Husky, Reese, and Valley above-bed base rails
  • Sturdy steel construction with durable, carbide powder coat finish


Specs:

  • Gross towing weight: 16,000 lbs
  • Vertical load limit: 4,000 lbs
  • Slider travel: 12" front to back
  • Hitch height: 17-1/2" - 21-1/2"
  • Warranty:
    • Limited lifetime for hitch
    • 5-Year limited for roller


Secure, Interlocking Two-Piece Jaw

A16 Two-Piece Interlocking Jaw

Unlike slide-bar models, the rounded, interlocking, two-piece jaw on this fifth-wheel trailer hitch inhibits rattle and movement by securely wrapping around your trailer's king pin, resulting in easier hookup and a safer, quieter ride.


Three-Point Indicator System

A16 Color Indicator System

Get peace of mind with Curt's color-coded lock indicator. Just look at the indicator - either the one on the handle or the one on the hitch itself - to determine whether the jaw is in the correct position to uncouple (red), couple (yellow) or tow (green).


R16 Slider

Most often used on trucks with 6' and 6-1/2' beds, this roller helps to eliminate clearance problems during slow-speed turns. When you are towing a fifth-wheel trailer, your hitch must be situated on the cab side of your truck's rear axle. However, at slow speeds you can use a roller to slide the fifth-wheel hitch (and the trailer) toward your truck's tailgate and past the rear axle, creating enough space between the cab of your truck and the trailer to permit less-restricted turning.


Non-Binding Design

The round-tube design of this slider allows for relatively uninhibited movement of your fifth-wheel hitch. Because your hitch can glide smoothly and easily along the rods, there is less chance of binding.


With straight, flat contact points, as found with square-tube sliders, tension can build between the slider and the hitch when your truck and trailer are somewhat out of line or are on uneven ground. As a result, it can be difficult to properly activate the slider when your truck and trailer are not in a straight line.


With a round-tube slider, there is more give between the contacting surfaces, allowing better mobility of the hitch system. Fewer corners means less tension buildup. Activating a round-tube slider is easier, and operation as a whole is smoother.


Curt rebranded this fifth-wheel trailer hitch by changing its name from Q16 to A16 in 2016. All features and specifications remained the same.



16521 Curt A16 (Q16) Fifth-Wheel Trailer Hitch with R16 Roller

16520 Curt A16 (Q16) Fifth-Wheel Trailer Hitch Head Unit

16560 Curt R16 Fifth-Wheel Roller - 16,000 lbs

Installation Details C16521 Installation instructionsAlternate Instructions C16521 Installation instructions



Customer Satisfaction Score:


Customer Reviews

Curt A16 5th Wheel Trailer Hitch w/ R16 Slider - Dual Jaw - 16,000 lbs - C16521

Average Customer Rating:  4.7 out of 5 stars   (597 Customer Reviews)

Heavy-duty 5th-wheel trailer hitch has interlocking jaws, a torsion head, and a color-coded lock indicator for safety and security. Non-binding slider ensures proper clearance during slow turns. Rails and universal installation kit sold separately.

by:

Love the hitch, slider's OK, my truck hates them though. It'd probably be fine in a different vehicle but The "acceptable play" in the slider mechanism is at a resonance to my truck and camper creating a vicious front-back oscillation hitting rough surfaces. After addressing several other issues and the problem persists. Finally, I 3D Printed bushings to eliminate the play which almost completely eliminates the oscillation. On the bright side, Curt and etrailer are working with me on it.



by:

1st off, customer service was Awesome, the ladies Ashley & Kim knew what they were talking about when helping me order my hitch.
Installation was fairly easy, would help if you had a 2nd person but I got it done.
The 1 thing that might be an issue is the height of the hitch when added with the height of the mount. I am hoping the new trailers kingpin will adjust low enough so the trailer rides level.
For the hitch itself, I like it so far, can't wait to see how the full wrap around jaws works.
I would recommend etrailer to anyone that needs a hitch.
Gave ot 4 stars only for the fact I have not pulled with it yet.



by:

The Curt A16 5th wheel w/ R16 slider is a great looking hitch. I received the hitch on May 11, 2023, replacing an older Reese 15K hitch with a slider lock bar. It was easy to finish the assembly and install. I immediately took my fifth wheel out, using the new hitch with the dual jaw locking system. The ride was amazing. The RV, which weighs approximately 10,000 pounds, loaded, did not buck or rattle, and responded perfectly to the turns, acceleration and deceleration with no issue. It was if there was nothing behind me.
The only issue with the Curt A16 is the height. At its lowest setting, the nose of the trailer was up too high. However, by raising the tongue of the RV to its highest setting, I was able to remedy most of that issue. I am looking forward to my trips this year with the new hitch!

James profile picture

James

5/23/2024

In the last year, I have gone on no less than 10 trips, travelling throughout the southwest. I remain very satisfied with the Curt A 16 5th wheel w the R 16 slider. The slider is very easy to use so I can back my trailer into spots without any worries of breaking out my back window. My only concern remains with the height. With all the adjustments I have made to the hitch and pin box, the front end of the trailer remains higher then the back by a couple of inches. This places a greater load on the rear axle. All in all, with the several thousand miles I have put on the trailer this year, there have been no problems. Therefore, I continue to recommend the Curt Hitch.



by:

So far it works great. Only pulled in a short distance and backed it up into my driveway. Make sure you have help lifting this. Very Very heavy. Directions were average but got the job done. Love the extra turning radius on my short bed F250. Make sure all the parts are there. The handle to release the king pin off the hitch was not in the packaging. The box that the hitch and slide came in were all in tacked and looked good. Emailed etrailer and within a few hours they sent were processing the order for the handle. Arrived in 2 days. That's great customer service.



by:

The hitch works great for us pulling our 5th wheel camper.

Meg profile picture

Meg

8/15/2024

Its working great and we love the color codes on it. Very helpful.



by:

Ram 2500/3500 fit issue. If you purchase this slider hitch and Curt OEM puck system rails (which is a package recommended on the website), this hitch will sit nearly at the same level as your bed rails at the lowest height setting. This makes the front of the 5th wheel sit quite high. I tried adjusting my pin box to make this work, but no luck. This setup won’t work for my Ram 2500. Due to restock fees and having to pay for return shipping costs, it’s not worth trying to return.

On a positive note etrailer.com is a great place to purchase truck and trailer parts, so don’t hesitate to purchase from them once you find the right hitch for your Ram.



by:

This is a solid hitch. I pulled my 34 foot 5th wheel last weekend and really liked it. I had the Pullrite auto slider before. not a fan of that hitch. One thing i did notice with this hitch on top the Ram adapter for the puck system is my RV sits up 1 1/2 to 2 inches higher. With the ISR that is lower. Other than that i love it.



by:

Have not gotten to tow yet but everything went together fairly easy. One major disappointment was the shipping and the packages were dumped in my driveway.



by:

First off I just got done installing the hitch and I hooked on my 35ft fith wheel trailer and went for a ride with windows down sun roof open and not a single rattle , clank , or noise from the bed of the truck with this hitch . It was easy to assemble but I did have one spot where the paint got chipped on the slider during shipping so I just touched it up . Very satisfied with hitch it latches automatically when you back in to it and the slider part works like it should .

Kevin L. profile picture

Kevin L.

10/23/2017

The products have worked flawlessly no problems and thank you for checking back with me its nice when a company cares about there costumers. Next time I need any trailer products I will definitely be contacting etrailer.



by:

Everything works very well, quality built. Only issue I had was the pins to lock the fifth wheel hitch to the spider arms. The pins were too large in diameter for the holes when I used the isolation pads. So you may need to find slightly smaller diameter pins at the hardware store, I was in a hurry and used the grinder to allow them to fit, but later found smaller pins to use.



by:

Looks like a received a returned hitch. All my hardware is missing. And still waiting on one box. The sliding rails. Starting off to a bad start.



by:

Upgraded from TT to fifth wheel. Once I learned the basic operation I have had mo problems with this hitch. Rides a little high because of adapter for factory puck adaptor but still fits my tonneau cover which I also bought from etrailer.

Katrina B. profile picture
Etrailer Expert

Katrina B.

6/30/2022

I see you also purchased the Reese OEM adapter, part # RP30154. When using this adapter, the adapter will add 2 inches to the height of your fifth wheel hitch.



by:

Very happy with this hitch. Installed it myself with the installation instructions and trailer videos. Mush easier to operate than my old hitch.



by:

The Curt system is really high quality. No issues at all putting the system in. One thing I do like is the position of the plate handle. It does not stick upward and is even with the plate. By designing the handle that way I can still cover my bed with my tonneau cover where other manufactures the handle was higher than the bed rail. The price was excellent and dealing with customer service was the same.

Ron C. profile picture

Ron C.

5/15/2018

Fantastic! Real smooth when coupling and un-coupling



by:

Great product. Easy to assemble and fits perfectly in standard bed rails on 22” center. I have coupled up with it but have not towed with it yet. Have a short trip of about 400 miles coming up in about 2 weeks. So far I am very happy with the way it couples and slides. Unlike my old square tube slider this one is very smooth and the price was right . Ordered late afternoon on Thursday and it delivered on Monday. Great shipping time. I like everything about it especially the fact that when you uncouple it is automatically set to recouple.

Daimon C. profile picture

Daimon C.

6/27/2020

This hitch is an outstanding product. Tows great with no noise. Extremely easy to hookup and unhook. I’ve had this a year and would highly recommend it. This is definitely a 5 star product.



by:

I called etrailer.com & spoke to a representative. After telling him which truck I had & the RV I was purchasing, he made 2 suggestions. I went with the Curt sliding 5th wheel hitch. With the hitch at it's lowest setting & the kingpin box at it's highest setting, the RV continues to sit 4 inches higher in the front compared to the back. When I called etrailer.com, I was told by the rep to speak with someone higher. I left a message on his voicemail. That was 2 days ago & still no call.
Needless to say I am disappointed.

Jenny N. profile picture
Etrailer Expert

Jenny N.

9/19/2023

I will have our Customer Service team reach out to you as soon as possible. I do not have a sliding hitch that is going to give you more clearance.



by:

Great hitch and great value. Our trailer is 2000lbs on the hitch and 12000lbs loaded, so not a huge rig. My favorite feature on this hitch is the locking jaw system, it makes coupling and un-coupling very smooth. The slider (when rarely used) is very smooth as well. Most of our towing is in the Colorado mountains and I feel very safe using this hitch. Lastly, I know this is just aesthetics, but it's a nice looking hitch.



by:

I am very pleased with my 5th wheel hitch.the install of the rails went well,and the assembly of the hitch itself also went well.first time towing 5th wheel no problem. I thought it was great that it was delivered promptly to my home no charge freight,that I believe saved me a lot money. I look forward to doing more towing this summer knowing the hitch is quality . Thank you for the follow up,I would recommend e trailer to anybody shopping for trailering equipment.



by:

We love our Curt A16 5th Wheel Hitch W/r16 Slider that we purchased last year through etrailer.com. This hitch is a top quality, well-made hitch. It's very easy to hitch and unhitch. We couldn't be happier.



by:

This is my first fifth wheel. I have a short bed so I got the package deal with the hitch and the slider. Took me about 5 hrs to install with the custom mounting brackets and rails for my 2015 chevy 2500 HD. Everything went as the instructions said without any issues. I have only pulled my RV with it one time just to try it out. Felt very smooth no rattles or pops as I have herd with other hitches. So far I like it a lot.



by:

Great hitch used it on a few trips already driven over 3,000 miles. Love the dual jaws and the adjustability, my truck sits a bit higher and I was able to adjust this down to get it where it needed to be- even with the Reese adapter plate(see photo). The polyurethane is also a nice touch, makes the ride a little more cozy then a standard hitch. Use with the provided lube plate



by:

Could not be happier. ...shipping arriving on time as scheduled, with other options available to your needs.
Shipping boxes little tore up but
exspected as it is heavy, but product boxes undamaged along with the items..
Assembly easy with directions included, and a video to help if needed. ..or staff to call to get you through.
Had existing rails to mount into, with the side mounting right in...head assembly fit into the slide without any issues. You will have to make your height adjustments depending on your needs for your application as I did..
First pull I made from last hitch was a 100% noticeable difference. Hook up and disconect with ease without any issues.
I will HIGHLY recommend etrailer for any needs to anyone they may have or products needing.
Thanks etrailer. ..you will be hearing from me down the road if needed for any of my RV needs



by:

I recently installed the Q16 Slider Hitch on my 2004 Chevy Silverado 2500HD. I have used it a couple of times now pulling my 5th wheel and have had no issues with it at all. I used the slide feature twice and both times it worked very easily and had my truck and trailer at a 90 degree angle with plenty of room to spare. Great product, was delivered in a very timely manner with no issues.



by:

I neeeded to replaced my 15 year old hitch, shopped around, did my research, decided on the Curt A16. LOVE this hitch! On the old hitch I couldn't see the king pin when backing up, old plate sat high in front, this one stays level so you can see the pin and it's highth easily. When the hitch locks around the pin you get a green indicator on the front of the hicth, nice feature. You can easily see that the pin is locked in by double checking the back of the hitch.This is a slider hitch, mechanism works smoothly and trouble free. Like anything else, clean it, lubricate it, maintain it. Would recommend this hitch, would buy it again. Nicely priced at Etrailer. One more thing; Instalation and assembly were easy, basic nuts and bolts.



by:

Went together without a hitch. Package box was in terrible shape but to my surprise un damaged.


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    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.
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  • 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...
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    Image 1 for Image 2 for
  • 5th Wheel Hitch for 2002 Silverado 2500 HD with 6-1/2-foot Bed
    The best type of truck to pull a larger 5th wheel trailer such as a 39-foot Jayco is a 1-ton long-bed. Long beds avoid the issue of too little turning clearance and 1-tons will have the power needed to pull a heavy trailer without strain. They also avoid the need for slider hitches which usually require you to get out of the truck to release the slide before making a tight turn in a campground. Trucks with a 6-1/2-foot bed will require you to use a sliding type hitch unless the trailer...
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