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  1. 5th Wheel Gooseneck Adapter
  2. Convert-A-Ball
  3. 5th Wheel Trailer to Gooseneck Hitch
  4. Bolts Over King Pin
  5. Shock Absorbing
  6. Adapts Trailer
Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter - 12" to 16" Tall - 20,000 lbs
Convert-A-Ball

Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter - 12" to 16" Tall - 20,000 lbs

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Retail:$701.92
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5th Wheel Gooseneck Adapter
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Use your gooseneck hitch to tow your 5th-wheel trailer by hooking up with this adjustable coupler adapter. Poly cushions absorb shock for a smooth ride. Adjustable height fits multiple applications. 20,000-lb GTW. 1-800-940-8924 to order Convert-A-Ball 5th wheel gooseneck adapter part number CAB-C5G or order online at etrailer.com. Free expert support on all Convert-A-Ball products. Great prices and Fastest Shipping for Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter - 12" to 16" Tall - 20,000 lbs. 5th Wheel Gooseneck Adapter reviews from real customers.
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  • Reviews (963)
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Convert-A-Ball 5th Wheel Gooseneck Adapter

  • 5th Wheel Trailer to Gooseneck Hitch
  • Bolts Over King Pin
  • Convert-A-Ball
  • Shock Absorbing
  • Adapts Trailer
  • 20000 lbs GTW
  • No Extra Clearance

Use your gooseneck hitch to tow your 5th-wheel trailer by hooking up with this adjustable coupler adapter. Poly cushions absorb shock for a smooth ride. Adjustable height fits multiple applications. 20,000-lb GTW.


Features:

  • 5th-Wheel-to-gooseneck adapter lets you tow your 5th-wheel trailer with your gooseneck hitch
    • Coupler bolts to your trailer's king pin and connects to gooseneck ball
  • Interior polyurethane cushions act as shock absorbers for smooth, safe ride
    • Reduce bounce and vibration
    • Minimize wear and tear on both your trailer and tow vehicle
  • Adjustable height fits multiple applications
  • Fail-safe king pin adapter has built-in, positive-lock feature to secure trailer to hitch ball
    • Steel extension handle lets you slide bar to lock or unlock coupler from outside the truck bed
      • Acts as a latch, keeping adapter secure
      • Can be replaced with a padlock (sold separately) for greater security
  • Durable, cast steel construction
  • Rust-resistant powder coat finish
  • Safety chains included
  • Made in the USA


Specs:

  • Towing capacity: 20,000 lbs
  • Pin weight capacity: 4,000 lbs
  • Application: 2-5/16" gooseneck hitch balls
  • Adjustable height (from top of gooseneck ball to base of king pin box): 12" - 16"
  • Collapsed height of adapter: 15-1/2"
  • 2-Year limited warranty


Notes:

  • Not recommended for use with Reese Elite Series gooseneck trailer hitches
  • Not recommended for use with factory-installed towing prep packages which use a hitch ball with an integrated locking lever.
  • Not compatible with sidewinder king pins.
    • When used together they produce two pivoting points at both the ball and the turret which is a safety hazard.
    • Included safety chains have weight capacity of 15,200 lbs if you are towing more weight you will need higher capacity safety chains.
  • Not compatible with any pin box with a swinging plate.
  • Not compatible with Rota Flex king pins
  • Any adapter that attaches in this way may void your trailer's warranty.

Finding the Correct Size Fifth-Wheel-to-Gooseneck Adapter

After backing the vehicle under the trailer, measure from the top of the ball in the truck bed to the base of the pin box on the trailer. This will indicate the height of the adapter that you need.


Convert-a-Ball Collar

Secure Installation

The included collar slides over your fifth-wheel trailer's king pin and is held in place with set screws. Additional, larger set screws that are mounted at the top of the coupler adapter then tighten onto the collar.


Convert-a-Ball Locking Feature

Positive-Locking Feature

This trailer coupler adapter features a simple, secure latching mechanism for safe, easy hookup with the hitch ball. The convenient extension handle grabs the sliding latch so that you can easily lock or unlock the coupler from outside the truck bed. Once the coupler is engaged, hook the handle through the hole in the sliding latch's track to ensure that it remains securely coupled. For extra safety, once the coupler is latched, you can replace the handle with a padlock (sold separately) to secure the trailer to the hitch ball during towing. Use a lock while your trailer is being stored to guard against towaway theft.


Pin Box Length

Note: There are no recommended limits to the length of pin box on which the Convert-A-Ball trailer coupler can be used.




C5G1216 Convert-A-Ball Adjustable Fifth-Wheel-to-Gooseneck Coupler Adapter - 12" to 16"

Item # CAB-C5G

Installation Details CAB-C5G Installation instructions



Customer Satisfaction Score:

Ratings & Reviews

4.7

960 reviews
Use your gooseneck hitch to tow your 5th-wheel trailer by hooking up with this adjustable coupler adapter. Poly cushions absorb shock for a smooth ride. Adjustable height fits multiple applications. 20,000-lb GTW.

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See what our Experts say about this Convert-A-Ball 5th Wheel Gooseneck Adapter

  • Towing a 5th Wheel Trailer with a Truck That Has a Recessed Gooseneck Hitch
    To tow a 5th wheel trailer with your truck that has a Hauler bed and a recessed gooseneck hitch installed, there are a few different options. Since the goosneck hitch is already installed the easiest way would be to adapt either the truck or trailer so you can hook up and tow. The first option is an adapter that replaces your pin box on your trailer. They are specifically designed to fit certain pin boxes, but this is the most secure permanent solution. Reese Goose Box 5th-Wheel-to-Gooseneck...
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  • 5TH Wheel Leland 7920 Pin Box To Gooseneck Hitch Adapter That Will Reduce Road Shock and Bouncing
    I have a solution to help with the chucking that you are experiencing as there is not a Reese Goosebox that fits the same bolt pattern used by the Leland 7920 Pinbox. The bolt hole spacing on your pin box is different vertically and horizontal from any of the cushioned 5th wheel pin box to gooseneck hitch pin box replacements that are currently available. I recommend either the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G for a long bed truck or their Offset Adapter...
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  • What Gooseneck Adapter Do I Need For A MORryde Cushioned Pin Box?
    Hello Greg. I do have a potential solution for you, but the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G that you were looking at will not work for this purpose. Reason being that this kind of adapter is not compatible with a cushioned pin box. Your best option will be to replace your MORryde cushioned pin box with a goosebox like the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box # GY38FR. Keep in mind that these gooseboxes are not universal. If you can...
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  • Can the Convert a Ball Fifth Wheel Adapter be Used on a Mor/Ryde Pin Box
    I spoke with my contact at Convert-A-Ball and he informed me that you would totally be fine using the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter w/ Offset # CAB-C5G on your trailer with a cushioned Mor/Ryde pin box. The two sets of cushions will work together to provide you with a very smooth ride.
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  • Adapting a Gooseneck Hitch to Tow a 5th Wheel Trailer with a 2011 Ford F-350
    The hole for gooseneck balls are not all the same. The Companion hitches such as # BWRVK3050, which was designed for flat bed trucks, only fit B&W Turnover Ball gooseneck hitches. For a gooseneck ball that sticks up from the bed (and is not recessed in a cavity like on a flat bed truck) you can use the Demco Recon hitch # DM8550045. It clamps around a 2-5/16 inch gooseneck ball. I have included a link to a video review of this hitch for you. Another option is to adapt the trailer by...
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  • Pin Box to Gooseneck Adapter for 2005 Wildcat 27RLWB
    Long bed trucks typically don't need any help with cab to trailer nose clearance. What made you think you'd need more clearance? And what type of gooseneck adapter were you wanting to use?
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  • Will The Convert-A-Ball Adapter w/ Offset CAB-C5GX1216 Work With MORryde Pin Box?
    Hello Phillip, thanks for getting in touch. The Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter w/ Offset # CAB-C5GX1216, but there are a few exclusions to keep in mind. The Convert-A-Ball adapter will not work with a sidewinder pin box. It is also not compatible with any cushioned or air ride pin boxes. The adapter will not work with a gooseneck ball that installs into an OEM prep package, specifically a ball that has a locking lever integrated into the ball. The adapter will...
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  • Fifth Wheel to Gooseneck Adapter to Replace Lippert 1621 Pin Box
    Looks like you have a Rotoflex pin box and installed a Convert-A-Ball adapter part # CAB-C5G on it which isn't supposed to happen. The king pin plate flexes and causes the issue you have. If you can get me the pin box part numbers you see on it I can see what adapter solutions you have.
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  • Adapter Recommendation to Go From Leland 7921 Pin Box to Gooseneck Hitch
    I wish we had a Reese Goose Box that fit as a replacement for a Leland 7921 but at this time we do not. Best alternative we have would be a Convert a Ball adapter like part # CAB-C5G. This attaches to the pin box of the trailer you plan on towing and gives you a gooseneck coupler to attach to a coupler.
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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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  • Can a Trailair Pin Box be Used with a Gooseneck Adapter
    I have checked with my contacts at our gooseneck adapter manufacturers, and adapters are compatible with the traditional trail-air pin boxes. My contact further explained that this adapter is not compatible with Trail-Air's Rota-Flex pin box. This is due to the forward and rearward movement in this pin box. If you have a traditional trail-air pin box that then this adapter will work great for you. A very popular option is the Convert A Ball part # CAB-C5G which will attach to the...
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  • Curt Gooseneck Ball for Chevy Puck System Compatibility with Demco Recon Gooseneck 5th Wheel Hitch
    For your 2019 Chevy 3500, the factory puck system will allow the Curt Ball and Safety Chain Loop Kit # C60692 along with the Demco Recon Gooseneck-to-5th Wheel Trailer Hitch Adapter # DM8550045 to work well with your truck. The Curt gooseneck ball has a metal lever on the top and side that allow the connection of the integrated ball-bearing system to secure the hitch ball. The lever will not be an issue for the Demco 5th wheel hitch to be compatible. This is a good question as other...
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  • Recommendations for 5th Wheel Trailer Connection With Gooseneck Hitch
    The Hide-A-Goose Underbed Gooseneck Trailer Hitch - 30,000 lbs # 9466 does not have an adapter that fits in the gooseneck underbed system. It would require an above bed adapter. The underbed systems that work with the hitches have pins that run all the way through the adapter to hold it into the system. For a hitch you can use the Demco Recon Gooseneck-to-5th Wheel Trailer Hitch Adapter - Single Jaw - 21,000 lbs # DM8550045 which attaches to the gooseneck hitch ball. You can alternatively...
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  • Gooseneck to 5th Wheel Trailer Recommendation for Truck that Tows Gooseneck and 5th Wheel Trailer
    I would recommend the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G that you referenced because it will install on the king pin of your trailer and will allow your truck with a gooseneck hitch to tow it easily. This would allow for an easy transition for your truck to tow a gooseneck or fifth wheel trailer since the adapter will only be on the fifth wheel trailer. Check out the install video I attached for more info.
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  • Solution for Towing 5th Wheel With Goosneck Hitch on Flatbed Truck
    It sounds like you still want to be able to use a 5th wheel hitch with your flatbed with the built in gooseneck hitch it has. Unfortunately, without the B&W gooseneck hitch you will be unable to use the Companion. The Companion head is also not compatible with something like the Patriot base that would work with industry standard rails. My recommendation is the use an adapter like the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G. This will bolt onto your king pin...
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  • Is Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter a Good Option
    The Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G is a great option for a fifth wheel trailer if you are looking for an adapter so long as you keep a couple of things in mind. The Convert-A-Ball is not compatible with Sidewinder king pins or other king pins that have a rotating turret; it should also not be used with Reese Elite Series gooseneck trailer hitches. Additionally you just need to measure from the top of your gooseneck hitch ball to the base of your pin...
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  • Solution for Towing Fifth Wheel Trailer with 2015 Ram with Square Gooseneck Hole in Bed
    Since the hole for the gooseneck ball is square that would mean you have an aftermarket gooseneck hitch installed. Since it is square you might be in luck though. If you get under the truck bed and the hitch is painted gray like the B and W gooseneck part # BWGNRK1384 you can install a Companion hitch like part # BWRVK3500 and you'd have a really great hitch option. If you see that it's a different brand hitch let me know and maybe an adapter like part # CAB-C5G would be your best option.
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  • Best Option for Adapting Fifth Wheel Pin Box to Gooseneck
    The easiest option would be the Convert a Ball adapter part # CAB-C5G which can either bolt or weld to the pin box on your trailer and give you a gooseneck coupler. I attached an install video for this adapter for you to check out as well.
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  • Recommended 5th-Wheel-to-Gooseneck Adapter for 2018 Ram 3500
    The reason the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G is not recommended for use with factory-installed gooseneck prep packages on Fords from 2011-present and Ram from 2013-present is because they use a gooseneck ball that has a plastic handle on top (see photo) that folds into the hitch ball and the Convert-A-Ball # CAB-C5G has a nut on the inside that will damage the gooseneck ball. For that reason, if you wanted to use the Convert-A-Ball on your 2018 Ram 3500...
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  • Is There a Reese Goose Box for Alliance RV Paradigm 310RL 5th Wheel Trailer
    I reached out to Lippert and was able to confirm that you have a Rhino Pin Box therefore you cannot use a Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter on your Alliance RV Paradigm 310RL. That said, you can use an adapter such as the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter part # CAB-C5G for a gooseneck connection.
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  • Fifth Wheel Hitch to Gooseneck Adapter Compatible with Lippert Rota Flex Pin Box
    My contact at Convert a ball explained that this adapter is not compatible with Trail-Air's Rota-Flex pin box. This is due to the forward and rearward movement in this pin box like what you have found. Your setup is not safe unfortunately. You could replace the pin box or possibly get a gooseneck to fifth wheel rail kit adapter but I'd need to know what gooseneck hitch you have.
    view full answer...
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  • Will a Gen-Y 5th Wheel to Gooseneck Adapter Pin Box Void My Trailer Warranty
    Installing ta Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Adapter Pin Box like the # 325-GH-8045 would not void the warranty of your camper, and Gen-Y makes some of the most durable parts on the market. I really like this as an alternative to some of the other gooseneck pin boxes because of the shock absorbing abilities, so it's a great choice. You will need to make sure that your 2021 Forest River Vengeance has a Lippert 1621 or 1621HD pin box and is less than 18,000-lbs GVWR for...
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  • Is There A Reese Goose Box for a Lippert 1116 Pin Box
    I spoke to my contact at Lippert and gave them the serial number on your trailer frame. With this information they were able to inform me that your trailer has a Lippert 1116 wing set. Unfortunately, they do not make a Reese Goose Box compatible with this wing set. However, if you prefer to have a gooseneck hitch ball as your connection point then you can use the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter part # CAB-C5G or part # CAB-C5GX1216. There is also a non-cushioned...
    view full answer...
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  • Can the Convert-A-Ball Gooseneck Adapter Be Used With A cushioned 5th Wheel Pin Box?
    I have a couple of solutions – just not with the Convert-A-Ball. The Convert-A-Ball # CAB-C5G gooseneck adapter cannot be used with most cushioned or air ride pin boxes, or rotating pin boxes.. The additional flex of two cushioning devices creates leveraged angles that can break both pin box parts and truck parts. I checked with my engineering contact at Convert-A-Ball specifically about your Roto-Flex and it is not compatible with the Convert-A-Ball adapter. There are two solutions....
    view full answer...


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