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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

Part Number: CAB-C5G
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$583.98
Retail:$721.60
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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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Convert-A-Ball 5th Wheel Gooseneck Adapter - CAB-C5G

  • 5th Wheel Trailer to Gooseneck Hitch
  • Bolts Over King Pin
  • Convert-A-Ball
  • Shock Absorbing
  • Adapts Trailer
  • 20000 lbs
  • 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"





Customer Satisfaction Score:

Ratings & Reviews

4.7

982 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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Show More Reviews

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

  • 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.
    view full answer...
    Image 1 for
  • 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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  • 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...
    view full answer...
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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...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • 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...
    view full answer...
  • 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...
    view full answer...
  • 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...
  • Fifth Wheel to Gooseneck Adapter Solution for Atwood AB-72 Pin Box
    I do have a solution that will allow you to tow a 5th wheel trailer with a gooseneck trailer hitch. however, neither of the Reese Goose Box models are listed as a fit for the Atwood AB72 pin box since Reese only fits them to Lippert pin boxes. Instead your best option is the Convert a Ball part # CAB-C5G which attaches to the king pin of the pin box and gives a gooseneck coupler.
    view full answer...
  • 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.
    view full answer...
  • 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...
    view full answer...
    Image 1 for
  • 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...
    view full answer...
  • Recommended 5th Wheel Towing Options for Flatdeck Ford F-350 with Fold Down Ball Gooseneck Hitch
    For your Ford F-350 with flatdeck with fold down ball gooseneck, I recommend the Demco Recon Gooseneck-to-5th Wheel Trailer Hitch Adapter # DM8550045. This will give you a 5th wheel hitch that will fit your Seitz pin box. I've attached a video to assist. There are other adapters available like the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G if you prefer to add a gooseneck style adapter to your pin box. Many manufacturers will not warranty the pin box when you...
    view full answer...
  • Adapter for Hotshot Trucking
    There is not really going to be an all-in-one type of fifth wheel trailer to gooseneck hitch adapter, but the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G will work in many situations. It will work so long as the top of your gooseneck ball is between 12" and 16" to the base of the king pin box and the fifth wheel is NOT a Sidewinder, Reese Revolution or any type of air ride 5th wheel king pin. It should also be noted that often an adapter like this will void the trailer...
    view full answer...
  • 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...
    view full answer...
  • Recommended 5th Wheel to Gooseneck Adapter
    Hey Kevin! If you're looking for an adapter you can bolt onto your existing pin box I recommend the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G. However, I do think it is better to completely swap out the pin box with one like the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box # GY38FR. This will also improve your ride quality. These are bolt pattern specific so if you decide to go this route I will need the serial number off of your existing pin box...
    view full answer...
  • 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...
    view full answer...
  • 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?
    view full answer...
  • Can I Use a Convert-A-Ball Gooseneck Adapter on a Curt Helux Shock-Absorbing 5th Wheel Pin Box?
    Hey Crystal, that's going to be a no. Curt has said their Helux Shock-Absorbing 5th Wheel Pin Box like item # C83RJ is not compatible with gooseneck adapters like the Convert-A-Ball item # CAB-C5G. Their reason being it puts additional stress on the 5th wheel trailer's frame and using an adapter will void the frame warranty. I know this is probably inconvenient but if you're swapping over to a Gen-Y gooseneck adapter like item # GY33GR the best way is to do it at the location you pick...
    view full answer...
  • Torque Spec for Collar Bolts On Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter
    In regards to the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter part # CAB-C5G, there is no torque spec for the hex head bolts on the collar. I spoke with Convert-A-Ball and they informed that the bolts need to all be flush and evenly tightened but that is all because there is again no torque specifications for these bolts.
    view full answer...
  • Fifth Wheel to Gooseneck Hitch Adapter for Trailer with Leland 7921 Pin Box
    For a Leland pin box the best fifth wheel to gooseneck adapter is going to be the Convert a Ball part # CAB-C5G that you referenced. Only issue is that since you have a short bed truck you aren't going to have great turning clearance. Ideally you'd have a hitch that a rail adapter could fit like the X5 part # 16310 for B and W hitches or the # C16210 for Curt double lock hitches so that you could use a slider hitch like the Curt A20 Slider part # C16541.
    view full answer...
  • 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.
    view full answer...
  • Is the Gen-Y Gooseneck Trailer Hitch for Ford OEM Puck Systems Safe to Use?
    No, it will not Gus and congrats on the new trailer. The Gen-Y Hitch Gooseneck Trailer Hitch item # GY43XR is completely safe. The offset does not move the weight back relative to the truck bed since the attachment point stays in the same area. I have linked a review video below so you can see the features of the Gen-Y item # GY43XR demonstrated. If you have any additional questions feel free to throw them into the comment box below and I'll be happy to help you.
    view full answer...
  • Can Gooseneck Hitch Tow 13.6k Fifth Wheel
    Hey William, I would assume the plate and the ball are both rated at 30k based on what you found and you'd be totally fine but it's hard to totally guarantee that without more info. What I can tell you is that gooseneck hitches are generally rated a lot higher than 13.6k so either way I believe you would be totally fine. Do you have a fifth wheel to gooseneck adapter already?
    view full answer...
  • Recommended Gooseneck to 5th Wheel Adapter for a 2000 Ford F-350
    The Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter part # CAB-C5G for long beds or part # CAB-C5GX1216 for short beds is a great adapter that is very popular. It has a cushion interior which works to reduce vibrations that in turn decreases wear and tear of the trailer/vehicle. However, there are other options out there which may be better for you. If you can tell me what gooseneck hitch you have in your 2000 Ford F-350 I would be able to info you as to what these options are....
    view full answer...


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