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  1. Gooseneck Hitch
  2. CURT
  3. Removable Ball - Stores in Hitch
  4. Below the Bed
  5. Wheel Well Release
  6. Manual Ball Removal
FITS 2016 Chevrolet Silverado 3500
Curt EZr Double Lock Underbed Gooseneck Trailer Hitch with Installation Kit - 30,000 lbs

Curt EZr Double Lock Underbed Gooseneck Trailer Hitch with Installation Kit - 30,000 lbs

Item # C611-624
Retail:$749.95
Our Price: $499.95
You Save: $250.00
Gooseneck Hitch
Confirmed to Fit
2016 Chevrolet Silverado 3500

6-1/2 Foot Bed without OEM Prep Pkg

8 Foot Bed without OEM Prep Pkg

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Shipping Weight: 120 lbs
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The chrome-plated ball on this gooseneck hitch locks in place with 2 pins for extra security. When you're done towing, flip the ball over and store it inside the hitch, freeing up your truck bed. Innovative center locator eases installation. 1-800-940-8924 to order CURT gooseneck hitch part number C611-624 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt EZr Double Lock Underbed Gooseneck Trailer Hitch with Installation Kit - 30,000 lbs. Gooseneck Hitch reviews from real customers.
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  • Reviews (100)
  • Q & A (0)
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2016 Chevrolet Silverado 3500 - Curt EZr Double Lock Underbed Gooseneck Trailer Hitch with Installation Kit - 30,000 lbs

  • CURT
  • Removable Ball - Stores in Hitch
  • Below the Bed
  • Wheel Well Release
  • Manual Ball Removal
  • 30000 lbs GTW
  • 2-5/16 Hitch Ball
  • 7500 lbs TW

The chrome-plated ball on this gooseneck hitch locks in place with 2 pins for extra security. When you're done towing, flip the ball over and store it inside the hitch, freeing up your truck bed. Innovative center locator eases installation.


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
  • 5/8" Thick, spring-loaded 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
  • Carbide black powder coated steel is durable and corrosion resistant
  • Easy, one-person installation with included custom mounting kit
    • 4" Hole in bed is required
    • Center locator helps eliminate drilling errors
      • No need to measure where ball hole will go in truck bed
      • Orange shavings appear when you've drilled far enough so that you know when to stop
    • No welding required
    • Truck bed does not need to be removed
  • Adapter plate (C16220 - 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
  • Tongue weight: 7,500 lbs
  • Limited lifetime warranty


Curt EZr Double Lock Gooseneck Hitch Operation

Curt EZr Double Lock Gooseneck Trailer Hitch Operation

The Curt EZr 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 EZr 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.


Curt Center Locator Tool

Curt Center Locator for Double Lock Gooseneck Trailer Hitch

The innovative center locator tool included with this gooseneck trailer hitch is designed to make installation fast and easy by eliminating the need to measure where the ball hole must be cut into your truck bed. Once you have the custom installation kit in place and the gooseneck hitch is properly attached to the rails, the bright orange locator will help you to finish installation.


Curt Center Locator for Drilling Pilot Hole

Use the hole at the center of the locator to line up your 3/16" drill bit, and drill up from beneath the bed to create a pilot hole. This pilot hole will be your guide as you cut the 4" diameter ball hole into your truck bed.


Curt Center Locator for Drilling Ball Hole in Truck Bed

When you begin cutting through your bed, the locator will act as a trim shield, ensuring that you don't drill too deep. Continue cutting from the top of your truck bed until orange shavings appear. Once you see these shavings, you've gone far enough. The center locator can be easily removed from the hitch once installation is complete.



60611 Curt EZr Double Lock Under Bed Gooseneck Trailer Hitch - 30,000 lbs

60624 (60605) Curt EZr Double Lock Gooseneck Installation Kit for Chevy/GMC

Replaces 611-605

60680 Curt EZr Gooseneck Kit with Chevrolet/GMC Installation Kit



Customer Satisfaction Score:


Customer Reviews

Curt EZr Double Lock Underbed Gooseneck Trailer Hitch with Installation Kit - 30,000 lbs - C611-624

Average Customer Rating:  4.5 out of 5 stars   (100 Customer Reviews)

The chrome-plated ball on this gooseneck hitch locks in place with 2 pins for extra security. When you're done towing, flip the ball over and store it inside the hitch, freeing up your truck bed. Innovative center locator eases installation.

by:

Accurate install directions, fantastic fit and operates perfectly for my 5th wheel RV



by:

After receiving the parts that were missing from the original order, the hitch was finally installed today, it took more then the 3 hours the video implied,
I haven't pulled with it yet, but looking forward to it..
The company was very courteous, very helpful, shipped the missing part promptly.
I will do business with them again.



by:

Easy to install. 64 years old and did it all by myself. So glad I went with this style. Have gooseneck and fifth wheel ability. When I want my full bed there’s no rails in the way. Pulling 13,000-14,000 lb fifth wheel camper. No problems.

Jimmy

3/18/2022

Product is working great. Very pleased with my purchase and etrailer’s service.



by:

All I can say is WOW. In two days I received the Curt EZr Double Lock Underbed Gooseneck Trailer Hitch with Installation Kit. I plan on using this Gooseneck with an Anderson 5th Wheel hitch. I haven't installed it yet but I do plan on installing very soon as we have purchased a 5th wheel Travel Trailer. As soon as it is installed, I will post some pics. Again, I cannot believe it arrived in two days.



by:

Build quality was outstanding, this is one stout piece of equipment. Install was a bit challenging because I did it by myself, but if I had someone to help it would have been much easier. Overall, the install was not too bad, just give yourself about 4-5 hrs if you don't have help. I'm very happy with this purchase and would definitely recommend.

Steven

8/3/2022

1 year later and about 15k miles of towing the gooseneck trailer flawlessly. I would definitely recommend this hitch!



by:
2018 Chevrolet Silverado 2500

Solid product, installation was fairly straight forward.



by:

Works as should except my handle on the ball broke to pull out of the bed when its hidden so i had to custom make a pull handle



by:

Easy install and very good customer ser vice



by:

Easy install, although since this is a dual pin lock on the hitch ball, there's no alternative hitch balls available that can work with offsetting or using a different 5th wheel hitch, such as the B&W Companion.



by:

Installation went well and the hitch works for everything we need

Larry

6/1/2022

Very well



by:
2012 Chevrolet Silverado

Fit great and easy to install. Took about Three hours to install with help inside the bed to hold center section up. The horses much prefer a ride in the trailer than walking twenty miles.



by:
2015 GMC Sierra 3500

I cant install it because was NO hardware in the box

Etrailer Expert

Sierra K.

1/17/2022

Customer Service will reach out to you.



by:

Very good quality , I have had no issues since I purchased it.



by:

Well built great instruction easy to in stall



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by:

Seems heavy duty but the brackets hit the u-bolts and spring top plates. Curt told me I must of installed them wrong. I don't think so



by:

Nice clean look. Most importantly didn't have to lower exhaust. centering the hitch in the bed was easy because of the template provided. Although install did take longer than what was noted, it was fairly simple. Would definitely purchase again.



by:

Seems to be very well built. Shipping was very fast. Will definitely purchase other products.



by:

I installed this hitch on my 2021 Silverado 2500HD. When first looking under the truck it appeared the exhaust would have to be modified to make the unit fit. The fact is this unit went in without any modifications at all…even all the factory drilled holes lined up perfectly. I recommend this hitch to anyone that has a stock exhaust system.



by:

Great hitch and easy to use. I did have to lift up the bed a little bit to install it. Took me about 5 hours because of that but otherwise it is a great hitch. The rings for the safety chains stay on the bed and the ball flips over and stows away completely.



by:

Installed as easy as they said it would. Videos are very helpful. Works great!



by:

shipping lost a box Men when box arrived 17 was destroed and missing parts. Need to do better job of packing for Shipping. Still waiting for missing parts.


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Show More Reviews

See what our Experts say about this CURT Gooseneck Hitch

  • How to Tell if You Have the Curt Double Lock or EZr Gooseneck Hitch On a 2015 GMC Sierra 3500
    The center sections are different on the Curt Double Lock part # C607-604 and EZr Double Lock Gooseneck Hitch part # C611-624 for a 2015 GMC Sierra 3500. The Curt Double Lock has multiple slots for the safety chain u-bolts and the EZr does not so if you look under the hitch then you should be able to tell which you have.
    view full answer...
  • Comparing Curt Double Lock and EZr Gooseneck Hitches for a 2015 GMC Sierra 3500
    The only difference between the Curt Double Lock part # C607-604 and EZr Double Lock Gooseneck Hitch part # C611-624 for a 2015 GMC Sierra 3500 is the center locator tool that comes with the EZr which helps to drill out the center hitch ball hole but aside from that they are pretty much the same. I recommend the EZr because of the added tool.
    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
  • Gooseneck to 5th Wheel Adapter Needed for a 2016 GMC Sierra Denali 3500 with Curt Gooseneck Hitch
    From the pictures that you sent in it looks like you either have the Curt Double Lock # C607-604 or the Curt EZr Double Lock # C611-624 installed on your 2016 GMC Sierra Denali 3500. If you have the Double Lock # C607-604 then you can use the X5 Adapter # C16210, but if you have the EZr Double Lock # C611-624 you will want to use the X5 Adapter # C16220 instead. Either one of these options will provide you with a standard base plate kit for you to use a 5th wheel hitch with standard attachment...
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    Image 1 for Image 2 for
  • Recommended System To Tow A Gooseneck Or Fifth Wheel Trailer With 2016 Chevrolet Silverado 3500
    I do have a system that lets you tow either a gooseneck trailer or a fifth wheel. First, you will need the EZr Double Lock Underbed Gooseneck Trailer Hitch, part # C611-624. This system gives you a gooseneck hitch in the bed of your truck with a 30,000-lb capacity. You would then need an adapter, part # C16220 to install in the gooseneck ball opening in the bed of the truck. This gives you base rails for a fifth wheel hitch like part # C16245. I recommend a different system for your...
    view full answer...
  • Difference Between Curt Double Lock and EZr Double Lock Gooseneck Hitch for 2017 Silverado 2500
    Both gooseneck hitches are the same, but the # C611-624 (which is the C60680 kit) that includes the vehicle specific mounting rails also includes the center locater kit that makes drilling the hole in the bed for the gooseneck ball much easier. The C60710 which we sell as part # C607-604 doesn't included the center locater kit. The # C607-604 weighs right at 100 lbs, and the # C611-624 weighs in right at 110 lbs. Other than that, the hitches are identical. I've linked to some installation...
    view full answer...
  • Recommended Sliding 5th Wheel Hitch for a 2015 Chevy Silverado 2500
    A 16,000 lbs 5th wheel hitch would be perfect for your 2015 Chevy Silverado 2500. Since your truck has the gas engine you're no where near having an 18,000 lbs capacity so paying for a hitch that has one is unnecessary. Since you have the Curt Double Lock item # C611-624 and it sounds like you also have the Curt X5 5th-Wheel Base Rail Adapter Plate item # C16220, I recommend the Curt A16 5th Wheel Trailer Hitch w/ R16 Slider item # C16521. This 5th wheel hitch has a 16,000 lbs capacity...
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  • Parts Needed To Install Sliding 5TH Wheel Hitch In 2019 Chevrolet Silverado 3500 With Curt Gooseneck
    If you have the Curt Double Lock # C607-604 gooseneck hitch on your 2019 Chevrolet Silverado 3500 you will be able to use the Rail Adapter # C16210 for installing a 5th wheel hitch. If you have the Curt EZr Double Lock # C611-624 you will need the Rail Adapter # C16220. These rail adapters will allow you to install their A20 Sliding 5th Wheel Trailer Hitch # C55DR.
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  • Difference Between Curt EZr And Double Lock Gooseneck Hitches
    The Curt EZr Double Lock is the newer version of the Double Lock system. Both of these will definitely fit your 2012 Chevy Silvedrado 3500 with the 6.5" foot bed and I have install videos linked below. Specs are identical between them with 30,000 pounds towing and 7,500 pounds of vertical load capacities and both have a Lifetime warranty. However, the EZr Double Lock Underbed Gooseneck Hitch # C611-624 consists of parts # C60611 and # C60624 whereas the Double Lock, Flip and Store Underbed...
    view full answer...
  • How to Tell Difference Between Curt EZr and Double Lock Gooseneck Hitch
    Easiest way to tell which gooseneck hitch you have is by looking at the safety cable loops. If they are about as wide as the gooseneck ball hole and are centered with the ball hole it's an EZr, if the safety chain loops are a smaller and offset then it's a double lock. Take a look at the pictures of the EZR part # C611-624 and the # C607-604 and compare your safety chain setup to both of these. Let me know which yours matches and we can go from there. The part # C16210 is for the Double...
    view full answer...
    Image 1 for
  • Recommended UnderBed Gooseneck System for a 2016 Chevy Silverado 2500
    Between the B&W and Curt underbed systems for your 2016 Chevy Silverado 2500, I recommend the B&W Turnoverball Underbed Gooseneck Trailer Hitch w/ Custom Installation Kit item # BWGNRK1016 based on B&W's reputation in the towing business, their amazing customer service, and warranty. The Curt EZr Double Lock Underbed Gooseneck Trailer Hitch item # C611-624 has an identical towing capacity to the B&W at 30,000 lbs and installs in basically the same way. They both include a gooseneck ball,...
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  • Curt Fifth Wheel Hitch Recommendation to Fit 2015 GMC Sierra 2500 with Curt Gooseneck
    Sounds like you have the Curt EZr gooseneck hitch part # C611-624 installed in your 2015 GMC Sierra 2500 short bed based on what you described. To install a slider gooseneck hitch you'll need an X5 adapter part # C16220 so that you have a set of rails for the hitch to install in. Once that's in place you could then install the Curt A16 5th Wheel Trailer Hitch w/ R16 Slider # C16521 that you referenced which would be a great choice.
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  • 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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  • Can Truck with Gooseneck Hitch Installed be Used for Transporting Cargo When Not Towing
    Yes, if you had a truck with a gooseneck hitch installed you would be fine to haul mulch, junk for the dump, etc. in the bed when you are not towing. For this situation I would recommend a removable gooseneck ball style hitch that has a cap that you can plug the ball hole with when not towing just to keep the hitch opening clean. I am not sure what vehicle you have, but the Curt hitch part # C611-624 is an example of a hitch that has a hitch ball like this.
    view full answer...
  • How to Tow 5th Wheel Trailer with Curt EZr Double Lock Gooseneck Hitch on 2016 Chevy Silverado 2500
    There is a way to use a fifth wheel hitch with your 2016 Chevy Silverado 2500 that has the Curt EZr Double Lock Underbed Gooseneck Trailer Hitch # C611-624. What you need to use is the Curt X5 5th-Wheel Base Rail Adapter Plate for EZr Double Lock Gooseneck Trailer Hitch # C16220 which gives you the ability to use most fifth wheel hitches such as the Curt A20 with Slider # C16541 if your '16 Silverado 2500 is a short bed, or the fixed Curt A20 # C16140 which is a fixed hitch for a long...
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  • Options For Towing 20k 5th Wheel Trailer With 2019 Chevy Silverado 3500 w/ Curt EZr Gooseneck Hitch
    To tow your 5th wheel with your 2019 Chevy Silverado 3500 Dually with the Curt EZr Double Lock # C611-624 installed you have two options. First option is using a 5th wheel adapter # C16210 which will fit in your gooseneck hitch and allow you to use a standard 5th wheel hitch # C16140 if you have a long bed truck, or a slider 5th wheel hitch # C16541 if you have a short bed truck. Both of these hitches and the adapter itself are rated for 20k max trailer weight which is what you need, you'll...
    view full answer...
  • Will Curt EZr Gooseneck For 2016 GMC Sierra 2500 Handle 13,000 lb Trailer Pin Weight
    Yes, without any doubt the Curt EZr gooseneck hitch that fits your 2016 GMC Sierra 2500 will be able to handle the 13,000 lb weight of your trailer as well as the pin weight (which is the same as tongue weight for the purposes of a gooseneck/5th wheel). The correct EZr for your '16 Sierra is the following: - Curt EZr Double Lock Underbed Gooseneck Trailer Hitch with Installation Kit # C611-624 Like you mentioned, this hitch has a 6,000 lb tongue weight/pin weight capacity, and pin weight...
    view full answer...
  • Compare Curt Hitch EZR and Double Lock for 2016 Chevy Silverado 2500
    From a function point of view there isn't a huge difference between the two Curt gooseneck hitches that are listed as a fit for your 2016 Chevy Silverado 2500. That you would notice is the EZR has a smaller plate that has larger u-bolts for safety chains and the Double Lock has smaller safety chain loops that aren't centered.
    view full answer...
  • Does Curt EZr Gooseneck Hitch # C611-624 Fit 2017 Chevy Silverado 2500HD
    Yes, for your 2017 Chevy Silverado 2500HD the Curt EZr gooseneck hitch part # C611-624 that you referenced is a confirmed fit and would work well. I attached an install video for this hitch for you to check out as well.
    view full answer...
  • Fifth Wheel Trailer Hitch to Work with Curt EZr Gooseneck Trailer Hitch on 2015 GMC Sierra 3500
    With the Curt EZr Gooseneck Trailer Hitch # C611-624 in your 2015 GMC Sierra 3500 use the Curt X5 Base Rail Adapter # C16220. The X5 fits into the gooseneck hitch and provides you with standard fifth wheel base rails in the bed of your truck. Once you have the X5 you can use any hitch that fits standard rails like the B&W Patriot # BWRVK3255. This hitch has a dual-jaw for a smoother ride. It also features a fully articulating head to ease hookup on uneven ground.
    view full answer...
  • How to Tow a 5th Wheel Trailer with a 2017 GMC Sierra 2500 Curt Gooseneck Hitch Installed
    The Curt Custom Fifth Wheel Installation Kit # C16411-204 is designed for your 2017 GMC Sierra 2500 but it won't fit if you already have a gooseneck hitch installed. With this being the case you still have a few options; you can use a gooseneck to 5th wheel adapter, an adapter rail kit, or remove the gooseneck altogether and replace it with the Curt installation kit mentioned above. Here is what you'll need depending on the situation: Gooseneck to 5th Wheel Adapter Convert-A-Ball Cushioned...
    view full answer...
  • Recommended Curt Gooseneck and 5th Wheel Hitch for 2017 GMC 2500 HD Denali
    For your 2017 GMC 2500 Denali, I recommend the Curt EZr Double Lock Underbed Gooseneck Trailer Hitch with Installation Kit - 30,000 lbs # C611-624 is a confirmed fit as is the Curt Double Lock, Flip and Store Underbed Gooseneck Hitch w/ Installation Kit - 30,000 lbs # C607-604. The only major difference between these two is the tongue weight rating of the Double Lock is 7500 lbs compared to the 6,000 lbs of The EZr Double Lock. The other difference is in the safety chain loop locations...
    view full answer...
  • Best Adapter to Convert Curt EZr Gooseneck to Sliding 5th Wheel Hitch for 2019 GMC Sierra 2500
    Let's start with the adapter you need for the Curt EZr Double Lock Underbed Gooseneck Trailer Hitch # C611-624 in your 2019 GMC Sierra 2500 short bed, which is the Curt X5 5th-Wheel Base Rail Adapter Plate for EZr Double Lock Gooseneck Trailer Hitch # C16220. This adapter will fit into the EZr hitch and give you above-bed fifth wheel rails for a number of compatible 5th wheel hitches. Among those that will work, the best sliding 5th wheel hitch for your 13,500 lb fifth wheel is the Curt...
    view full answer...
    Image 1 for Image 2 for
  • Do Curt Gooseneck Hitches # C607-604 and # C611-624 Both Fit 2013 Chevy Silverado 2500HD
    Realistically there isn't a noticeable difference between the two Curt gooseneck hitches that both fit your 2013 Chevy Silverado 2500HD. Both the # C607-604 and # C611-624 are a great fit that will for all intents and purposes work just as well as the other. For the most part the EZr is a smaller version that very similar but slightly different ball.
    view full answer...


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Info for this part was:

Employee Joe V
Test Fit:
Joe V
Employee Robert C
Test Fit:
Robert C
Employee David F
Test Fit:
David F
Employee Ryan G
Test Fit:
Ryan G
Employee Lindsey S
Edited by:
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Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
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Employee Chris R
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Employee Kathleen M
Updated by:
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