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  1. Gooseneck Hitch
  2. CURT
  3. Removable Ball - Stores in Hitch
  4. Below the Bed
  5. Wheel Well Release
  6. 30000 lbs GTW
Curt Double Lock, Flip and Store Underbed Gooseneck Hitch w/ Installation Kit - 30,000 lbs

Curt Double Lock, Flip and Store Underbed Gooseneck Hitch w/ Installation Kit - 30,000 lbs

Item # C620-664
Our Price: $599.83
Gooseneck Hitch

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Shipping Weight: 102 lbs
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Get a little extra security when you are towing with Curt's double-lock, gooseneck hitch. Chrome-plated ball locks in place with two pins while towing and flips over for storage inside the hitch when its job is done. Installation kit included. 1-800-496-5010 to order CURT gooseneck hitch part number C620-664 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt Double Lock, Flip and Store Underbed Gooseneck Hitch w/ Installation Kit - 30,000 lbs. Gooseneck Hitch reviews from real customers.
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  • Reviews (530)
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  • Why etrailer?

CURT Gooseneck Hitch - C620-664

  • Removable Ball - Stores in Hitch
  • CURT
  • Below the Bed
  • Wheel Well Release
  • 30000 lbs GTW
  • Manual Ball Removal
  • 2-5/16 Hitch Ball
  • 6000 lbs TW

Get a little extra security when you are towing with Curt's double-lock, gooseneck hitch. Chrome-plated ball locks in place with two pins while towing and flips over for storage inside the hitch when its job is done. Installation kit included.


Features:

  • Heavy-duty underbed hitch lets you tow your gooseneck trailer
  • Double-lock system provides added security with 2 pins holding ball in place instead of 1
  • Chrome-plated hitch ball easily removes when you're not towing for complete access to your truck bed
    • Ball flips over and stores upside down in hitch for easy access
  • Chrome ring surrounds the hitch ball hole to provide a tight, low-profile look
  • Comfort-grip handle can be positioned on either side of truck bed
  • Safety-chain hookups are built in
  • Zinc plating provides superior corrosion resistance for locking mechanism
  • Rubber cover keeps grime out of ball hole when ball is stowed
  • Black powder coated steel is durable and corrosion resistant
  • Custom mounting kit with Grade 8 hardware included
    • 4" Hole in bed is required
    • No welding required
  • Adapter plate (C16210 - sold separately) allows for 5th-wheel towing
  • Offset hitch ball (C602 - sold separately) creates additional space between truck cab and trailer


Specs:

  • Ball size: 2-5/16"
  • Gross towing weight: 30,000 lbs
  • Vertical load: 7,500 lbs
  • 7-Year Limited warranty


Curt Double Lock Gooseneck Hitch Operation

Curt Double Lock Gooseneck Trailer Hitch Operation

The Curt Double Lock underbed gooseneck trailer hitch provides a sturdy, secure connection for towing your gooseneck trailer and also allows for a clean, unobtrusive look for your truck bed when you aren't towing. To tow, simply pull the included handle out to unlock the hitch. Then insert the chrome-plated hitch ball into the ball hole. You may need to rotate the ball to line it up with the dual locking pins. When the ball drops into place, rotate the handle counterclockwise until the locking pins snap into position. Because there are 2 locking pins instead of 1, you get extra security for your towing setup.


Get full bed access when you're not towing. Just remove the ball, flip it upside down, drop it back into the ball hole of the hitch, and use the handle to lock the ball in place. A rubber cover is included with the Double Lock. When the ball is stowed upside down in the hitch, place this cover over the ball hole to keep out dirt and grime and create a clean look for your vehicle.



60620 Curt Double Lock Underbed Gooseneck Trailer Hitch - 30,000 lbs

60664 Curt 600 Series Gooseneck Hitch Installation Kit

60740

Installation Details C620-664 Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Curt Double Lock, Flip and Store Underbed Gooseneck Hitch w/ Installation Kit - 30,000 lbs - C620-664

Average Customer Rating:  4.7 out of 5 stars   (530 Customer Reviews)

Get a little extra security when you are towing with Curt's double-lock, gooseneck hitch. Chrome-plated ball locks in place with two pins while towing and flips over for storage inside the hitch when its job is done. Installation kit included.

by:

Review from a similar Double Lock in Gooseneck Hitch


this installed correctly on my 2005 dodge ram 2500 diesel per instructions for installation with air bags. I have hauled a 42 foot 3 axle car trailer for over 6,000 miles with no issues. This was a great purchase. Thank you


Comments
Follow up review. 5 star product.
Nick - 10/30/2022


by:

Review from a similar Double Lock in Gooseneck Hitch


Ordered this after deciding to go with it over a B&W kit due to me not using it a whole lot and the price difference. When I received the package 1/2 the hardware was missing because the inner box it was in was all broke apart and the outer box was not sealed up. So I would have to give the packaging and shipping one star because I had to go spend an extra $75 on grade 8 hardware. The paper directions were not totally clear on several thing so we resorted to the video which helped a lot. The two large carriage bolts that go in the rear cross member are a little deceiving because the video makes it seem like they slip right in. However, the heads were larger than the pass through in the frame rails so it took quite a bit of extra time and ingenuity to get those fished through there with the plates.(The carriage bolts survived shipping so they were what came with the kit). In the video it showed where he cut a large u out of the inner fender to clear the pull handle and notched the bed that looked kind of sloppy. With a few extra measurements you can just cut a hole in both for handle to slide through and give it a much cleaner look. Definitely recommend putting a bolt through receiver holes and using a strap to hold up center plate through hole in bed after you get it into place. Makes life a lot easier until you get the bolt ls in. Overall this hitch works and functions great. Install went pretty smooth with two people and I would recommend it to anyone needing a hitch.




by:

Review from a similar Double Lock in Gooseneck Hitch


I installed the Curt gooseneck on my 1993 GMC 2 Wheel Dr. 2500 truck. All the components have tight tolerances. It took me eight hours. With a socket and the wrench. Laying on my back. I did have to cut the wheel well lip about 3/8 of an inch off because I could not get that front angle bar to slide in without hitting it, no way around it unless you lift the bed up and I wasn’t going to do that!!. You have to cut it.instructions do not state that. I’m very happy with the Hitch, it is definitely stout! I did have to make a notch on the outside brackets to go over my airbag bolt. I also had to remove the support bracket on the inside of the frame for the airbag and the crossmember for the spare tire to get the front angled bar in.




by:

Review from a similar Double Lock in Gooseneck Hitch


Thank you for reaching out. Definitely love the reliability and durability of this hitch, also the added clearance. I have it mounted on my 40 foot enclosed race car trailer. We towed using it 35 to 40 times to and from race tracks in 2019. Hooking it up and disconnecting it every weekend. Never gave us a single issue.




by:

Review from a similar Double Lock in Gooseneck Hitch


Fit and finish are excellent and work as expected. I would be cautious with measuring for the hole in the bed, depending on what if any bedliner is installed. In my 2018 F150 the factory spray in bedliner was thinner than the measurement in the instructions. This resulted in the hole being off center by 1/8". This is not a deal breaker, just something to be aware of, and is the responsibility of the installer. I Regularly pull a 9800 pound fifth wheel camper and gooseneck dump box with no issues.




by:

Review from a similar Double Lock in Gooseneck Hitch


installation was pretty easy. i really like the flip over ball. we pull a 30 ft camper with it and it does just fine.


Comments
it is still working perfect. the hideaway ball is the best.
rob b - 11/07/2022


by:

Review from a similar Double Lock in Gooseneck Hitch


I purchased a gooseneck assembly for my 2018 Silverado and received half the stuff that was suppose to come with it and so I called and was suppose to get the stuff I’m missing and after getting the next package I’m still missing parts that never got sent


Comments
I am sorry you have had to wait so long but I do see that this most recent shipment is headed your way.
-- Etrailer Expert Brooke M - 11/09/2022


by:

Review from a similar Double Lock in Gooseneck Hitch


Customer service I would give 1 star-Never received the first hitch I ordered as it was lost. Customer service told me I would have to wait until UPS finished its investigation before they could reorder and re ship the hitch to me and wanted me to pay again for a new order before they would ship. Only until I told them to cancel and refund my money did they ship a new hitch to me.




by:

Review from a similar Double Lock in Gooseneck Hitch


My hitch was delivered very fast, all necessary hardware and instructions were complete. It bolted up easily in my Silverado. The only thing not provided was a 4 inch hole saw for the hole in the bed. Installation was very straightforward and it has preformed flawlessly since I installed it.




by:

Review from a similar Double Lock in Gooseneck Hitch


Installed easily on 2015 GMC 2500 HD double cab short bed. Plenty of clearance under the bed when ball is flipped. This system makes for a clean useable bed. When I was purchasing this I was concerned about clearance of a gooseneck hitch and my transfer tank. I have a 40 gal tank that sits back from the cab a bit over 20 inches, there’s plenty of clearance for a gooseneck with a fuel tank on this short bed. The hitch has held up perfectly over the last year. I haul around 12k on steep, washboard, gravel roads.




by:

Review from a similar Double Lock in Gooseneck Hitch


I think this gooseneck hitch is the best for newer Sierra/Silverado HD trucks. I installed it a week ago with the help of my father-in-law and his car lift. Took about 4 hours moving slowly and taking our time. Everything fit well and bolted right up. I also reinstalled the foil heat shield after removing one mounting ear. I did not drop the exhaust or the plastic heat shield and still got everything in.

I chose this specific kit because it did not require notching the bed seam when installing the rails. It also has a higher tongue load rating than the others and was cheaper.

The only major criticism I have is the pull wire and carriage bolts. My chassis has weld nuts and I would have preferred to use those over carriage bolts pulled into the chassis. I am thankful there were access holes almost inline with the mounting holes. That made it easy to put pressure on the bolt heads so they didn’t fall back. I also think the gasket around the big hole should be one piece to make it look cleaner. I used black silicone rtv to smooth the transition and adhere the gasket in place.

Overall I am completely satisfied with the kit and the help of Shawn B who got my order in, had it shipped that same day and followed up with me after delivery. Thanks etrailer and Shawn B.




by:

Review from a similar Double Lock in Gooseneck Hitch


I did the install myself on a 2019 GMC 2500 Short bed. I watched several videos before. I did not remove either mud shield or cut out/remove the heat shield. I chose not to install the chain holders since my Andersen Hitch has it's own tiedown bracket. My bed has a spray liner and therefore the edge covering would not fit the newly cut edges around the hole opening. So be sure to paint the exposed metal. In one of thg he videos a tech use a predrilled board as a guide during the drilling of the bed hole. This was a great idea. Since I chose to keep the heat shield installed I had to lift the main unit into place by sliding it up between the gas tank and rear differential unit. I think it would have been very helpful to have a tools required list before I started. Also, the tip about cleaning out the powdercoated threads was very good idea. Preptime, tapping threads, install and cleanup (tool put away) was over 6hrs....and I skipped a lot of disassembling a n.v d reassemble steps. Everything was straight forward and understandable. A lift would have been great but I used rear ramps which was enough. Make sure you get a step ladder for bed entry now. I expect it to work as expected. Seems very solid!




by:

Review from a similar Double Lock in Gooseneck Hitch


Haven't used it yet but I'm sure it will perform just fine. Install was a pain but not technically difficult as long as you follow the video, the provided instructions aren't very helpful. I managed to remove and reinstall the exhaust heat shield instead of cutting it unlike one of the videos suggested. But the provided template for drilling the hole in the bed is very helpful and confidence building (I don't think the comparable B&W provides one, just measurements). I also like the double latch system on the ball and especially the hideaway feature. It is finished nicely with chrome, rubber ring for the bed, and black cap so it looks great as well inside the bed. I was missing some bolts and washers but etrailer sent them out ASAP! The only gripe of the product I have is they didn't utilize the factory weld nuts on my truck's frame for the factory installed hitch which would make the install a little easier/cleaner, and instead make you fish a bolt an washer through the frame. Probably a reason for that or maybe an oversight. But overall happy so far




by:

Review from a similar Double Lock in Gooseneck Hitch


The picture enclosed show how package was received from UPS. Hardware was falling out of box and steel parts laying at bottom. Plastic bag that contained hardware had been torn open. It appears to be a customer return that was not probably repackaged. There are luckily only some washers missing. Customer service was very nice and apologized saying they would replace hitch but time doesn’t allow for that




by:

Review from a similar Double Lock in Gooseneck Hitch


Im sure the hitch will work as it should i have installed a number of curt hitches the reason its not 5 stars is because shipping not etrailer or curts fault but the carrier dosent take care of packages at all only problem os some bolts are missing but i can pick up ay the hardware store




by:

Review from a similar Double Lock in Gooseneck Hitch


Kit installed easily and fit perfectly. Instructions could have been better or included more pictures, but watching a few videos of similar installs online helped. Lost one star because the kit was missing an exhaust hanger bracket and a couple other pieces that were considered optional and fortunately not needed during my install.




by:

Review from a similar Double Lock in Gooseneck Hitch


We had problems getting all the parts , it took a lot of e- mails to finally have everything . The problem was mostly from Curt not etrailer . We also have to consider it was during the Covid period . Otherwise I would rate excellent




by:

Review from a similar Double Lock in Gooseneck Hitch


We had problems getting all the parts , it took a lot of e- mails to finally have everything . The problem was mostly from Curt not etrailer . We also have to consider it was during the Covid period . Otherwise I would rate excellent




by:

Review from a similar Double Lock in Gooseneck Hitch


I placed the order for this on a Sunday evening knowing it wouldn’t be processed till Monday. It said it would be delivered on Thursday and it was. The I received was completely destroyed with all the parts laying on one end of the box and all the supposed packaging torn up and the parts bag ripped open. After getting everything out of the box, I laid out the parts to see what was missing. There were 13 different pieces missing so was unable to put this in and I needed it to pull a trailer that weekend. I immediately called to let them know how the package arrived and that I was missing parts. After giving them the list, I said I would need them overnighted because I needed to use it this weekend. I was told that since it was free shipping that it was impossible to do and the would ship it out sometime next week and maybe get it by Thursday. This was the first time I ordered from this company and it will certainly be my last.




by:

Review from a similar Double Lock in Gooseneck Hitch


If ya order something ask for Jamie and she will get you just what you need and get it to you asap and it was a very easy install and works great really recommend this still hitch and this company




by:

Review from a similar Double Lock in Gooseneck Hitch


Great value and durability. Self install in about 3 hours and has remained solid since then. Put in about 10k miles towing a 31 foot trailer with it.




by:

Review from a similar Double Lock in Gooseneck Hitch


Great product and perfect fit for my 2005 GMC Sierra duramax. I just purchased a Montana fifth wheel and wanted to still be able to use the bed of the truck without taking a heavy hitch in and out and breaking my back. The hitch arrived really fast and the boxes were in pretty good shape and I was only missing one washer from a torn parts bag. I was able to install the hitch that weekend with help of the directions and how to YouTube video. The only issue I had was that the video stated the crossbar with the notch went to the rear while the directions showed it going to the front. It definitely goes to the front and was pretty obvious when installing it. I didn’t have any real issues with the install and it looks great and hides away nicely leaving a clean flat bed. I look forward to hauling my fifth wheel real soon.


Comments
In order to tow your fifth wheel trailer with your new gooseneck hitch, youll need an adapter of some sort. If you use the provided link, you can see the various options available.
-- Etrailer Expert Mike L - 04/19/2018
Great addition to my towing needs. I have taken the hitch out many times and it has always performed well.
Dennis H - 04/18/2019


by:

Review from a similar Double Lock in Gooseneck Hitch


Great product nice when it’s installed but installation is not fun the instructions are useless.
Trick I learned is to mount everything up then from the bottom eyeball center from the small pilot hole the instructions told you to drill it will be in the wrong place so use caution.
Bad is that my tailpipe vibrates on the spring loaded hooks had to modify.
Good luck to whoever try’s to install one without a lift.




by:

Review from a similar Double Lock in Gooseneck Hitch


This hitch is well made and the installation went easily. It mounted exactly to existing frame holes and has worked "without a hitch" pun inteded, since install. I would recommend this for anyone needing a high quality gooseneck hitch!


Comments
Works like a champ every time I need it!
Arin - 04/18/2022


by:

Review from a similar Double Lock in Gooseneck Hitch


Parts came in two separate boxes the second box was broken open and missing part's. Sent us replacement parts for that and sent parts for the wrong truck. Sent everything back. Very disappointed.



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See what our Experts say about this CURT Gooseneck Hitch

  • Gooseneck Trailer Hitch Recommendation for a 2012 Nissan Titan King Cab
    The only gooseneck trailer hitches we carry for the 2012 Nissan Titan are made by Curt, # C620-664. I have included a link to the installation instructions for you.
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  • Can a Gooseneck Hitch Be Installed in a 2004 Nissan Titan with a 5-1/2 ft Bed
    The Curt Gooseneck Hitch # C620-664 that you referenced is confirmed to fit your 2004 Nisan Titan with a 5-1/2 foot bed. The issue you will most likely see is that when you go to make a tight turn the trailer will want to hit the cab of your truck. If the front of your trailer is very narrow then this might work for you, but most likely you would not have the clearance. There is a formula to determine if you have enough clearance to make a 90 degree turn. (A+B) - C = Clearance A. equals...
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  • Will the Curt Gooseneck Hitch Provide Adequate Clearance on 2008 Titan Crew Cab with 5-1/2 Foot Bed
    I recommend using the Curt offset ball, part # C602, with the Curt goosneck hitch, part # C620-664, since you have a 5-1/2 foot bed. This will give you an additional 4 inches of clearance and the Curt hitch is the only one we carry for your 2008 Nissan Titan. To best determine if your horse trailer will have enough clearance with or without it, I recommend taking a few measurements and using our clearance formula. The formula: (A + B) - C = Clearance A = Distance from the fifth wheel...
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  • Gooseneck Hitch Compatible with 2017 Nissan Titan XD 8 Foot Bed
    The Curt Double Lock, Flip and Store Underbed Gooseneck Hitch w/ Installation Kit - 30,000 lbs # C620-664 is not a confirmed fit for 8 foot bed of your 2017 Nissan Titan XD. The correct fit for your Titan XD is the B&W Turnoverball Underbed Gooseneck Trailer Hitch w/ Custom Installation Kit - 30,000 lbs # BWGNRK1217. That is currently the only fit we have for the Titan XD but in my opinion it is the best gooseneck hitch so it is win/win.
    view full answer...
  • Parts Needed to Install a Gooseneck Hitch and Wiring in a 2004 Nissan Titan Crew Cab
    The correct gooseneck hitch and installation kit for the 2004 Titan Crew Cab with either a 5-1/2 or 6-1/2 foot bed is the Curt Double Lock, Flip and Store Gooseneck Hitch with Installation Kit, item # C620-664. At this time, the Reese Hide-A-Goose Underbed Gooseneck Trailer Hitch, item # 9461, has not been fitted for use with the Nissan Titan trucks. You may also be interested in the Fifth Wheel and Gooseneck 90 Degree Wiring Harness with 7-Pole Connector, item # 50-97-410, which will...
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  • Gooseneck Hitch For Nissan Titan With 5-1/2 Foot Bed
    The Curt Double Lock, Flip and Store Underbed Gooseneck Hitch w/ Installation Kit # C620-664 is one of the only hitches on the market that will work with the 2007 Nissan Titan 5-1/2 Foot Bed. This product has a removable 2-5/16 hitch ball that stores in the hitch. There is no drilling required to install the frame brackets of the installation kit. the Installation rails are rated to meet vehicle manufacturer's tow rating. (see vehicle owner's manual) If you need wiring Curt 5th Wheel/Gooseneck...
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  • Recommendation of Under Bed Goose Neck Trailer Hitch & Brake Controller for a 2002 Nissan Titan
    For your 2004 Nissan Titan SE 4-door crew cab, the under bed gooseneck trailer hitch we carry is the Curt, part # C620-664. The gross towing weight is 30,000 pounds. The 4-inch offset ball we recommend is Curt # C602. The 4-inch offset ball will add clearance between the back bumper of the truck and the front of the trailer.. It will work with a ball size of 2-5/16 inches. And lastly a brake controller. I recommend the Tekonsha Prodigy P3 trailer brake controller # 90195. It includes...
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  • Curt Double Lock Gooseneck Hitch Fit for 2005 Nissan Titan
    I checked with Curt, and the 2005 Nissan Titan is one of the few trucks that the Curt Double Lock Gooseneck # C60607 will not fit. The hitch - without the brackets - your Nissan Titan uses is the Curt Double Lock, Flip and Store Gooseneck Hitch for Nissan Titan # C60620. So the Curt Double Lock gooseneck hitch WITH installation brackets that fits your 2005 Nissan Titan is the Curt Double Lock, Flip and Store Underbed Gooseneck Hitch with Installation Kit # C620-664. Since you have a 5-1/2...
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  • Recommend 5th Wheel to Gooseneck Adapter For 2007 Nissan Titan 4x4 w/ Tow Package
    If you already have a gooseneck hitch installed on your 2007 Nissan Titan 4x4 and are wanting to pull a fifth wheel trailer, you can use a fifth wheel to gooseneck adapter, such as the Convert-A-Ball Trailer Coupler, part # CAB-C5G. The fifth-wheel to gooseneck adapters comes in different heights so you will need to measure to determine which adapter you will need. To measure, you will want to back your truck up as if you were going to hook up to your fifth wheel. Then you will want to...
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