1. Fifth Wheel Hitch
  2. Curt
  3. Sliding Fifth Wheel
  4. 20000 lbs GTW
  5. Hitch Only
  6. Cushioned 360-Degree
Curt Q20 5th Wheel Trailer Hitch w/ R20 Slider for Chevy/GMC Towing Prep Package - Dual Jaw - 20K

Curt Q20 5th Wheel Trailer Hitch w/ R20 Slider for Chevy/GMC Towing Prep Package - Dual Jaw - 20K

Item # C16671
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Fifth Wheel Hitch

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Shipping Weight: 310 lbs
C16671 - 5000 lbs TW Curt Fifth Wheel Hitch
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Heavy-duty 5th-wheel hitch has a dual jaw, pivoting head and color-coded lock indicator for superb safety and security. Non-binding slider ensures proper clearance during slow turns. Includes adapter rails for Chevy/GMC 5th-wheel towing prep package. Call 800-298-8924 to order Curt fifth wheel hitch part number C16671 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt Q20 5th Wheel Trailer Hitch w/ R20 Slider for Chevy/GMC Towing Prep Package - Dual Jaw - 20K. Fifth Wheel Hitch reviews from real customers.
  • All Info
  • Reviews (326)
  • Q & A (8)
  • Photos
  • Why etrailer?

Curt Fifth Wheel Hitch - C16671

  • Curt
  • Sliding Fifth Wheel
  • 20000 lbs GTW
  • Hitch Only
  • Cushioned 360-Degree
  • Standard - Double Jaw
  • 12 Inch Fore/Aft Travel
  • 5000 lbs TW
  • 18-3/4 - 22-3/4 Inch Tall

Heavy-duty 5th-wheel hitch has a dual jaw, pivoting head and color-coded lock indicator for superb safety and security. Non-binding slider ensures proper clearance during slow turns. Includes adapter rails for Chevy/GMC 5th-wheel towing prep package.


  • 5th-Wheel hitch mounts in your truck bed so you can tow your 5th-wheel trailer
  • 2-Jaw locking 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
  • Unique spherical axial bearing allows easy pivoting of hitch head
    • Smooth, 360-degree movement - not just front-to-back and side-to-side tilting
    • Built-in cushioning absorbs road shock
  • Non-binding slider provides clearance required for short-bed pickup 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)
    • Short-throw, single-handle operation
  • Self-aligning head pivots for simple hookup
  • 3 Lube points with easy-to-access grease fittings
  • 2-Pin head removal makes it easy for one person to remove hitch
  • Included plastic lube plate lets king pin glide smoothly into hitch during hookup
  • 4" Height adjustment
  • Fast, easy installation
    • Drops into the 4 receiver pucks that are built into your factory underbed rails
  • Sturdy steel construction with durable, carbide powder coat finish


  • Application: 2016 and newer Chevy/GMC trucks with factory-installed towing prep package
  • Gross towing weight: 20,000 lbs
  • Vertical load limit: 5,000 lbs
  • Slider travel: 12" front to back
  • Hitch height: 18-3/4" - 22-3/4"
  • Warranty:
    • Limited lifetime for hitch
    • 10-Year limited for roller

Secure, Two-Piece Jaw

Q20 Two-Piece Jaw

Unlike slide-bar models, the rounded, 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

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).

Q20 Color Indicator System

360-Degree Pivot

Curt's unique spherical axial bearing provides a durable pivot point that allows easy, 360-degree movement of the hitch head. This ball joint is designed for smooth, quiet operation with less clunking and chucking.

R20 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.

16530 Curt Q20 Fifth-Wheel-Trailer Hitch Head Unit

16550 Curt R20 Fifth-Wheel Roller - 20,000 lbs

16023 Curt OEM Fifth Wheel Roller Adapter for Chevrolet and General Motors Trucks with Factory Towing Prep Package

Installation Details C16671 Installation instructionsAlternate Instructions C16671 Installation instructions

This Product Fits The Following Vehicles

Customer Reviews

Curt Q20 5th Wheel Trailer Hitch w/ R20 Slider for Chevy/GMC Towing Prep Package - Dual Jaw - 20K - C16671

Average Customer Rating:  4.7 out of 5 stars   (326 Customer Reviews)

Heavy-duty 5th-wheel hitch has a dual jaw, pivoting head and color-coded lock indicator for superb safety and security. Non-binding slider ensures proper clearance during slow turns. Includes adapter rails for Chevy/GMC 5th-wheel towing prep package.

- C16671

Easy to assemble. Perferct fit with my Bakflip tonneau cover. 450689

- C16671

Ordered via phone on a Wednesday. Was delivered on Friday. Ordered the slide that is compatible with my puck system. Came in three boxes. All parts and accessories were accounted for. Only issue was directions supplied was for the rail system. But, online video’s are out there to help with product instillation. Hitch is easy to connect and disconnect from king pin. Pins instead of bolts would make it easier to adjust the height but, once it’s set for your king pin, you are good. So measure first before you assemble the head. 821444

- C16671

eTrailer did a great job with packaging this product with the factory OEM packaging inside additional reinforced boxes. The large heavy packages arrived in good shape. I had to return two of the same hitches I had originally ordered from Amazon because they were shipped in original OEM packaging with no extra packaging and arrived in poor shape with significant damage to the hitch. Overall very happy with the quality and performance of the Curt hitch. I installed a electric winch in my garage for easy removal and installation due to overall assembled weight of hitch. (Too old for lifting heavy objects or smarter with age?) 820999

- C16671

Thanks to my nephew Chad he recommended I buy the Curt brand for my new 5th wheel trailer. The hitch came in three boxes and was very easy to install in my 2019 GMC worked great just could not be happier. while installing I noticed the dust cover had a cracked weld I placed a call and they sent out a replacement part that day which was Saturday I call that EXCELLENT CUSTOMER SERVICE !! This is my first 5th wheel hitch and I could not be happier from ordering to installation and follow up highly recommend Curt. Thanks Chad 801730

- C16671

This is my third hitch and by far the best. Function and fit exellent easy to install and operate. Shipping and delivery fast. Great service. Will order again. 770159

- C16671
2019 Chevrolet Silverado 2500

Just installed today, all parts are very heavy. I will need a crane to take it out. Had to go to hardware store because of some wrong parts in sealed bags. Handle was bent my guess was during shipping. Maybe a little to early for a complete review. Looking forward to hooking up the trailer and testing hitch. 670303

- C16671
2018 Chevrolet Silverado 2500

Everything arrived on the date it was promised. Thank you. 655047

- C16671
2019 Chevrolet Silverado 3500

Met my needs 638085

- C16671

looks good have not had time to use it yet 636221

- C16671

good product, came fairly fast the shipper was terrible, the packaging was crushed, ripped open, parts hanging out and some parts missing. really not etrailer's fault 628523

- C16130

Review from a similar Q20 in Fifth Wheel Hitch

Arrived on time with everything as promised. I have purchased multiple times from etrailer with outstanding results every time This 5th wheel hitch was just 4 bolts to put together. Easy - peasy 723265

Great with 4000 miles. Not a single problem. It would be 6 stars if it had another 2 inches of rise. Installed on a 08 F 459
G - 11/08/2020


- C16636

Review from a similar Q20 in Fifth Wheel Hitch

Really good quality and works just like it’s supposed to. 697734

Works great! A friend just bought one and loves it as well.
Randy W - 09/05/2020


- C16636

Review from a similar Q20 in Fifth Wheel Hitch

When we received the hitch it was missing a few pieces so we called customer service at etrailer and they were so nice and took care of the issue immediately, highly recommended the hitch and etrailer!! 611451

- C16130

Review from a similar Q20 in Fifth Wheel Hitch

A very strong yet lightweight product. Easily comes out of the bed of my truck with two people. Feels very secure when pulling our 5th wheel. 524934

- C16130

Review from a similar Q20 in Fifth Wheel Hitch

had to adjust the rails a little but nice fix 753778

- C16536

Review from a similar Q20 in Fifth Wheel Hitch

The Curt Q20 with R20 slider hitch arrived just as promised in 3 days after placing the order. The Q20 head box was totally destroyed. The manufacture packaging was not made to ship individually using small package carrier such as UPS. Upon inspection I discovered that the bolts and washers were missing. I contacted Bill at E-trailer and told him. He explained that the replacements would have to come from the manufacturer and would take several days. I told him that I already scheduled an install and really needed those bolts and washers. He was able to round some up for me and shipped them out next day and they arrived on Monday just as promised. I also spoke with Bill about not being able to remove the head unit for the hitch. It needed to be removed to be able to install it on the slider. It seemed to be stuck and I could not budge it. I assumed that it may have been damaged in shipping, especially after receiving it in a demolished box. He explained to me that since it was new its tolerances were tight and I might try taking a pry bar to it. Well that did not make me feel real good. He was totally correct. Just a little more effort with a pry bar moved it just enough for the bushing to squeak loose and the head came right out. I am disappointed in the jaws on this unit. They look like they were forged by a 3rd grader. Not smooth and somewhat pitted. They are not machined jaws for sure. Had it all installed using the new Reese rail brackets for the 2017 F250. Everything went smooth. An added plus is the quiet ride when not connect to trailer. Can’t even notice the hitch is back there. My other hitch rattled and clanked all the time and was so annoying. I just hooked my 38ft 5th wheel for the first time. It was smoother and easier than any other hitch I have ever used. I bought the sider unit which is recommended by all for the short bed. However I cannot use the slider as the king pin box slides too close to the tall tail gate. The new 2017 F250 is taller and the bed is deeper so I needed a hitch that would go up to 19 ½ inches. I will update after a my first run with trailer later this month. Everyone at E-trailer was outstanding. 5 Star. I will keep using them in the future. 303415

- C16130

Review from a similar Q20 in Fifth Wheel Hitch

I had a 16K Husky 5th wheel hitch for 12 years. It came with the RV purchase. We upgraded to a larger 5th wheel in 2015. I pulled it with the K16 but due to wear on the hitch I didn't feel comfortable. I searched the internet and came upon etrailer.com. I began researching different hitches. I settled on Curt due to it's reviews. I placed an order with etrailer and the next day I got an email with all of the shipping and tracking information. I had the hitch in 5 days. I was very disappointed when it was delivered. The shipping box was very light duty and had been reinforced with pieces of cardboard damaged. There was also a lot of heavy duty staples holding it together. I took photos upon delivery. After I opened the box I found the hitch was damaged. I immediately sent an email with photos of the box as received and the damage to the hitch. I called customer service and talked to Gina and Janice and went over the details. I was given instructions for returning the hitch and was emailed necessary papers to ship it back at no charge. I dropped it off at UPS the same day and received notification in 3 days that it was received. I was also advised a new hitch would be sent out and I received it in 3 days. At first I was very upset but after. That quickly changed after talking to the staff and receiving the new hitch within 5 days. These type things sometimes happen. I give the staff at etrailer.com an applause for their quick handling of this issue. I have since made another purchase. Give them a try. 275867

- C16130

Review from a similar Q20 in Fifth Wheel Hitch

New hitch installed 489092

- C16130

Review from a similar Q20 in Fifth Wheel Hitch

Just got back from a two-week road trip out west, the new trailer hitch performed without a snag! Easy docking and undocking, very nice to have a nice smooth ride. We are very impressed and thankful for an excellent product. The package in which the hitch arrived was in pretty rough shape, but all the pieces arrived. There is one place on the deck itself where it took some scuffing of the paint from whatever it was banged on during shipping. We are going to have to touch up that place to keep it from rusting in the elements. All in all, this was a great buy. Thanks 574834

Any good quality rust inhibiting spray paint like Rust-Oleum would work just fine.
-- Mike L - 10/16/2018


- C16530-16017

Review from a similar Q20 in Fifth Wheel Hitch

Product arrived in good shape. The instructions were easy to understand and it took less time to install than I thought. 463016

- C16530-16020

Review from a similar Q20 in Fifth Wheel Hitch

After watching a YouTube video, assembly wasn't a problem. Hitch seems ok, haven't used it enough yet. The one problem I Have at this time is the Curt decal on the hitch head was installed crooked . It looks like a kid put it on. If I can't get another one I'll tear that one off and repaint if needed 634939

- C16536

Review from a similar Q20 in Fifth Wheel Hitch

Received product from ETrailer in a very timely manner. All went well with no hitch, play on words, that is what I purchased. Sandy was helpful beyond belief and answered all my questions. Some speak of the damaged boxes when these Curt Hitches arrive. Mine too were damaged but the product was unscathed. Shipping the 100 lbs products I didn't expect the boxes to last. ETrailer did a great job stuffing the shipping boxes all was well. I would recommend ETrailer just on how professional the employees are. I will being purchasing other items again. Thanks again Sandy! 328914

- C16130

Review from a similar Q20 in Fifth Wheel Hitch

After I bought my new camper the search was on for a better hitch. I previously owned a little rocker 15k with the slide bar style locking mechanism. It worked well but with the bigger camper I wanted something that would eliminate the chucking in the hitch that I was getting. After looking at a lot of other hitches and comparing price vs. features I settled on this hitch. The box it was shipped in was pretty beat up when it got to my house but I kinda expected that. The hitch survived the journey without a scratch. Its built very heavy, but not so heavy that I cant remove it my truck by myself. The fitment between all the components seems good without a lot of slop. After setting the height I hitched up to the camper and took her for a test run. I am very happy with the results so far. The only place that I get any movement is where the hitch connects to the rails but I plan on purchasing the felt pads to eliminate that in the future. The indicators on the release bar are very nice, its nice to have a visual indication and know the jaws are locked. Even after a year of use i still can't find anything to really complain about. If anyone is looking for a solid hitch that won't break the bank I would strongly recommend this one. 607787

- C16530-16021

Review from a similar Q20 in Fifth Wheel Hitch

This 5th wheel hitch fits OEM hitch mount provisions perfectly on my 2017 Ram 3500. Connecting and disconnecting works well. This hitch is heavy for one person to manage, but a hoist set-up makes for easy installation and removal. Tows well with no play between trailer pin and truck. Great product. 625666

- C16536

Review from a similar Q20 in Fifth Wheel Hitch


Show More Reviews

Ask the Experts about this Curt Fifth Wheel Hitch

  • Adapter Needed To Install Curt Q20 5th Wheel Trailer Hitch On 2020 Chevy Silverado 2500 with Pucks
    In order to use the Curt Q20 5th Wheel Trailer Hitch part # C16671 on a 2020 Chevrolet Silverado 2500 with factory prep package you will need to use a new adapter, the Adapter Rails for Curt 5th Wheel Hitch part # C88KR. The old adapter can be removed and then the new one installed to fit the updated puck design.
    view full answer...
  • Best and Lightest Slider Hitch for 2019 Chevy Silverado 2500 with OEM Rail Kit
    The total weight of the Curt Q20 for GM Tow Package rail kits is 316 lbs. The only part of this hitch that's easily separable is the rail kit adapter that comes with the kit part # C16023 which weighs 79 lbs. So since you want a lighter slider kit your best option by far is the B and W Companion Slider for GM Rail Kit part # BWRVK3770 which has a 20k capacity. This weighs a total of 255 lbs and has a head that was designed for quick and easy removal to distribute some of the weight better....
    view full answer...
  • Recommended Curt 5th Wheel Hitch for 2018 GMC Sierra Short Bed with Factory Puck System
    I believe you are referring to the Curt Q20 5th Wheel Trailer Hitch w/ R20 Slider # C16671, which is a confirmed fit and what I recommend for your Sierra 3500 if it has the 6-1/2 foot bed. The primary difference between the Curt Q20 and the Curt A20 5th Wheel Trailer Hitch # C16669 that you also mentioned is that the Q20 features a unique, spherical axial bearing that allows it to move 360 degrees. This will provide a smoother and much more enjoyable ride when pulling your trailer when...
    view full answer...
  • Does Curt Q20 Hitch # C16671 Come With Everything to in 2018 GMC Sierra 3500 Short Bed
    Yes, the Curt Q20 5th Wheel Trailer Hitch w/ R20 Slider # C16671 is a complete fifth wheel hitch and slider that fits directly to factory GM fifth wheel rail kit your 2018 GMC Sierra 3500 short bed has. This would be the only part number you'd need to install a hitch in your truck and be ready to tow.
    view full answer...
  • Underbed 5th Wheel Trailer Hitch and Install Kits for a 2015 GMC Sierra 2500
    You can install a 5th wheel hitch in your truck BUT Curt Q20 5th Wheel Trailer Hitch # C16671 was designed for Chevy/GMC trucks that came with the factory 5th wheel prep package. This package was not available on the 2015 model year GMC Sierra 2500. It wasn't available as an option until the 2016 model year. For an underbed system that is like the factory prep package you can use one of the following set ups: Reese install kit # RP30868 with hitch # RP30144 B&W kit # BWGNRK1012-5W,...
    view full answer...
  • Recommended Fifth Wheel Hitch Setup for 2017 GMC Sierra 3500 to Tow 2020 Keystone Fuzion
    The Curt Q20 5th Wheel Hitch # C16671 that you referenced is a great option to tow your 2020 Keystone Fuzion if you decide to have your GM dealership install their factory below bed rails. We have some great aftermarket options for you that you can get from us here at etrailer.com. Aftermarket systems are typically less expensive than factory options without sacrificing safety, capacity, or features. For a complete underbed rail 5th wheel system for your 2017 GMC Sierra 3500 Denali,...
    view full answer...
  • Will Curt Q25 5th Wheel Trailer Hitch # C16069 Fit Factory Rail Kit on 2017 Silverado Short Bed
    The Curt Q25 5th Wheel Trailer Hitch # C16069 referenced in your question will physically fit without issue into the factory pucks on your 2017 Chevy Silverado 2500 with a 6-1/2 foot bed. The reason we only list this particular hitch as a fit for the 8 foot beds is simply because it is a stationary hitch, and with short bed trucks, a sliding hitch is typically needed to provide the necessary cab clearance for making sharp turns. For a sliding fifth wheel hitch that will fit the factory...
    view full answer...
  • Can The Demco Adapter DM6333 Be Used With Curt Q20 From 2017 GMC 2500HD
    According to the Demco 5th Wheel Rail Adapter part # DM6333 is rated for 25K however according to the owner's manual for the 2020 GMC Sierra it cannot tow more than 20,000 lbs . The Demco 5th Wheel Rail Adapter for Chevy/GMC part # DM6333 will give you industry standard rails in the bed of your 2020 truck. If the Curt Q20 in the 2017 GMC Sierra 2500 is part # C16536 which fits industry standard rails then the new Demco adapter is compatible. If you have the Curt Q20 5th Wheel Trailer...
    view full answer...

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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Jeff D
Updated by:
Sarah W
Updated by:
Kristina F
Updated by:
Isabelle B
Written by:
Amanda M

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