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.
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 USA
Towing capacity: 20,000 lbs
Pin weight capacity: 4,000 lbs
Application: 2-5/16" gooseneck hitch balls
Height: 12" - 16"
2-Year limited 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.
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.
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"
Video of Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter - 12" to 16" Tall - 20,000 lbs
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Convert-A-Ball Trailer Coupler CAB-C5G Review
Today were going to review part number CAB-C5G. This is the Convert-A-Ball cushion fifth wheel to gooseneck adapter. It is height adjustable from 12 inches to 16 inches and it has a 20,000 pound towing capacity. This fifth wheel to gooseneck adapter will let you tow your fifth wheel trailer with your gooseneck hitch. This coupler bolts to your trailers kingpin and then itll connect to the gooseneck ball in your truck bed. On the inside they do have the polyurethane cushions which will act as shock absorbers for a smooth, safe ride.
They help reduce bounce and vibration and theyll minimize the wear and tear on both your trailer and your tow vehicle. This does have adjustable height which I can show you right here. This will slide up and down for adjustable heights which will fit many applications. It is a fail-safe kingpin adapter. It has a built in positive lock feature to secure the trailer to the hitch ball.
The steel extension handle lets you slide this bar to lock or unlock the coupler from the outside of the truck bed and itll act as a latch by keeping the adapter secure. This part is made of a durable cast steel construction. It does have a rust resistant powder coat finish. It does come with the safety chains which are included. Comes with the locking collar and again the steel extension handle.
This part is made in the USA. It does have a towing capacity of 20,000 pounds. It has a pin weight capacity of 4,000 pounds and it does fit on a 2 5/16th gooseneck hitch ball. Again the height is adjusted from 12 inches to 16 inches. It does come with a two year limited warranty.
First off I want to show you how youd actually install this onto your fifth wheel and your gooseneck. Basically you would start off with this locking collar. It has three large Allen head bolts in it and theres also three indentations. Basically what you would do is on it it says, Top front. So this is the top front right here. Then this white locator mark here is where youll line this up to the exact center on the front of your kingpin box. This would basically slide up onto your kingpin and then you would tighten these Allen head bolts down to where they will rest on the bottom lip of your trailer kingpin. Snug them up and then this would be secured on your kingpin on your fifth wheel. Then this coupler right here will basically slide up onto this collar right in here. It would slide up on here. These three jam nuts right here at the top will actually tighten down into these indentations on the locking collar and you would torque them down to hold it into place. Now on this adapter as you can see right up here it says front, right here it says front. This will basically face your truck cab. This would be pointing towards the front of your truck which would make this locking handle on the drivers side of your truck bed. With this already installed onto your fifth wheel trailer you will slide this up on to the locking collar, torque down these jam nuts right here, and that would secure it into place. Your next step would be to slide this down over the gooseneck ball in your truck bed and then you can adjust the height to where you can see. Right on the back here there are three jam nuts that will tighten down once you get your height selected. Basically this would slide up and down to get you the correct height. One of the things I just wanted to show that youll see when I slide this up too far youll see a red line become exposed. You do not want that red line showing. Thats actually a warning that you do not want to hook it up that way. Anytime you adjust your height you want to make sure that red line is covered up. That it is not showing. If you see that red showing that means you need to lower your trailer until there is no red showing before tightening any of these jam nuts. Then the other feature I wanted to show you was this right here. You slide this to open; its stamped open here, and locks here. If you slide this to open then you would slide that down onto your hitch ball when youre doing your height adjustment. This extension handle is nice to use because you can be outside the truck bed and you can use either end. You can just reach in, move it to the lock position, move it to the open position. Once you move it into the lock position its locked over the gooseneck ball then you can use this other end, the hooked end, as a positive lock feature. Basically what youd do is theres a hole right here, youd slide this hook end from the inside out and then make the extension handle go behind and then just drop this down into your truck bed. It would actually lock this latch from going over to the open position so it is a positive lock feature. Now if you do want greater security you can run a padlock through here which I sold separately and thatll give you greater security to keep this latch from moving to the open position. That should do it for review on part number CAB-C5G.
Customers compare CAB-C5G to these similar products
Average Customer Rating: 4.8 out of 5 stars (23 Customer Reviews)
by: Matt P.12/18/2011
Is this review helpful?
After watching the very informative youtube video, we decided to purchase from etrailer. Our hitch arrived 5 business days after ordering, took 10 minutes to install and worked perfectly bringing our newly purchased 5th wheel trailer home.
Totally pleased, no problems. Fit well, very stable. Used now for over 20k miles. Mounted, then drilled & tapped kingpin box to make permanent. Been on lots of rough roads (bridges too), never loosened or cracked.1511
Product was easy to attach and worked like a charm. Had no issues and it seems to be of good quality. Would recommend to anyone that needs to pull a 5th wheel with a gooseneck. Glad I found this product.76417
I recieved product 4 days after I ordered it, talk of fast service you'll are doing a great job. Hitch looks good and tough, I had it on in a couple of hours.
Thanks for a great product.
I just bought a 30ft 5th wheel. I went to pick it up and It took more time to lift the jacks on the trailer than it did to install the gooseneck adapter. It pulled as good as any gooseneck trailer I have pulled. It only required an allen wrench and a cresent wrench to install. The instructions were simple and easy to follow. I could not be more happy with this product.47047
it was easy to put on.It was a good thing i got the 12" to 16" so i could adjust it so it would not hit my tool box on corners, other than that i pulled the camper down the road and i couldn't even tell that it was there, good product 40833
Great service and quick delivery! Arrived on my porch three days after ordering. Needed to convert a 5th wheel camper to a gooseneck hitch, since we regularly haul a horse trailer. Installation took about 1/2 an hour and directions were clear and concise. Thanks for a quality product. Will highly recommend your site!38916
Researched several products similar to this and this was the best. Received it in a few days. Exactly what I needed for my camper. Installation was easy. YouTube video was very helpful. Will recommend to anybody. 35775
I have the same problem. Instructions do not say to drill and tap, but I an considering trying this to see if it stabilizes the ride. Any other suggestions?
comment by: Greg S - 1/19/2013
It will take some extra work, but it may be worth removing the could and making sure the collar is installed properly and then re-install the coupler. If that does not resolve the issue, I would contact Convert-A-Ball.
Patrick B - 2/1/2013
I get that also usually on bumps.
comment by: Eric - 3/1/2013
Again, removing and verifying the collar install or re-installing it my help. Beyond that, a call to Convert-A-Ball may be in order.
Patrick B - 3/28/2013
Is this review helpful?
Air ride is the way to go. We got this adapter for a 5th wheel camper, the air ride makes it less noticeable than our gooseneck and I didn't think that was possible. I would highly recommend, took less than 10 minutes to put on, easy release couldn't be any easier!1129
You may not need to drill holes in the pin box of your new fifth wheel to use the Fifth Wheel to Gooseneck Cushioned Trailer Adapter, part # CAB-C5G. If the pin box already has holes in it, you would bolt the adapter to the bottom of the pin box without having to drill.
You may also want to consider the High Security Stainless Steel Disc Padlock, item # DT40124, to secure the coupler latch and secure the coupler to the gooseneck ball. view full answer...
You are correct in that some gooseneck hitches have weight ratings that will handle up to 26,000 pounds or more. However, if you use this adapter, you have to abide by the lowest limiting factor. For instance, if you had a heavy duty gooseneck hitch and then used this adapter to pull a fifth wheel trailer, the adapter would be the limiting factor of 20,000 pounds towing capacity and 2,000 pounds tongue weight capacity. If you are trying to tow your toyhauler fifth wheel with the Fifth Wheel to G view full answer...
If you are using a gooseneck adapter to pull your fifth wheel trailer then you would be much better off to switch over to a fifth wheel Hitch and possibly consider an air ride pin box. The goose neck adapter is not really the best solution for towing fifth wheel trailers if ride quality is a consideration.
The Reese 18k, part # 30081, would be a good choice for your fifth wheel trailer and F-350 pickup. Along with that you will need an installation kit and our custom install kit, part # RP50 view full answer...
The Fifth Wheel to Gooseneck Cushioned Trailer Adapter fits a 2-5/16 inch ball. This adapter is adjustable between 12 and 16 inch sizes, so it is best to measure from the top of the ball on the truck to the base of the pin box on the trailer to find the correct size for your application. view full answer...
Yes, the Fifth Wheel to Gooseneck Cushioned Trailer Adapter, part number CAB-C5G, will install easily to your fifth wheel king pin and your 2-5/16 inch gooseneck hitch ball.
You will need to measure to determine the correct height adapter that you will need for your application. After backing the vehicle under the trailer on a level area, measure from the top of the ball on the truck to the base of the pin box on the trailer, this measurement will let you determine which size adapter will all view full answer...
The Fifth Wheel to Gooseneck Cushioned Trailer Adapter, part # CAB-C5G, is a heavy built unit. It will withstand the repeated mount and dismounts that you are speaking of. The only draw backs to this unit are that it will require you to remove the collar from the adapter and then the trailer each time you drop the trailer and you will need to decide which height will work best for your multiple towing situations.
It should last a very long time and be safe as long as care is taken when using view full answer...
This adapter will not put any excessive torque on the kingpin box. However this adapter is not designed for continual or cross country use. The ideal purpose is for adapting the trailer to your gooseneck for a short trip.
We do have customers that do use this continually. Usually a rougher ride is the outcome, but it would not damage the kingpin box. view full answer...
Yes, you should be able to measure from the top of the ball on your gooseneck setup to the top of the fifth-wheel head, where the pin box rests, to get the correct measurement for selecting the proper gooseneck adapter. view full answer...
In order to tow your fifth wheel trailer on a gooseneck hitch with an adapter, you need to take a different measurement.
After backing the vehicle under the trailer, measure from the top of the ball on the truck to the base of the pin box on the trailer. The adapters we offer are 12, 14 or 16 inch. If the measurement from the top of your ball to the base of the pin box is not one of the above, then you will need to consider other options.
You could either use a fifth wheel hitch to tow the view full answer...
The Fifth Wheel to Gooseneck Cushioned Trailer Adapter, item # CAB-C5G, has a manufacturers warranty for 1 year and is limited to defects in material and workmanship. We have had no problems with this item, the manufacturer stands behind their product and will replace it if there is an issue. view full answer...
The adapter will bolt attach to any standard Fifth Wheel king pin, but you will need to take some measurements to be sure it will fit. After backing the vehicle under the trailer, measure from the top of the ball on the truck to the base of the pin box on the trailer. The adapter we carry is adjustable between 12 and 16 inches.
Please note, that these adapters are not to be used in trucks with less than a 6 foot bed. Also note that these adapters are not meant to be used permanently. They are view full answer...
Yes, we have a couple different solutions that could solve your problem. Since you have a fifth wheel with rails already in your bed, I would suggest using a Gooseneck plate built for fifth wheel rails like Draw-Tite part # 49080. If you will be towing other fifth wheel trailers and need to keep your fifth wheel on the truck at all times and do not want to pull the fifth wheel on and off, we do have adapter tubes.
If you have a round gooseneck coupler with a 4 inch outer diameter, you could u view full answer...
The red lever on the Fifth Wheel to Gooseneck Cushioned Trailer Adapter, item # CAB-C5G, should be installed to the drivers side of the bed of the truck. This makes for easier locking and opening of the gooseneck adapter.
It has been a while since I have looked at one of these. I was pretty sure that there is a sticker that shows the front side of the adapter. I went out to the warehouse and checked to be sure and there is a sticker, labeled front, on the left side of the coupler when looking view full answer...
On the Fifth Wheel to Gooseneck Cushioned Trailer Adapter, # CAB-C5G, you do not have to do any welding or bolting, the collar slides over the king pin and there are set screws that are tightened around the king pin. Then the adapter is screwed to the collar over the king pin. The mounting screws are included.
If you want a semi-permanent application then the adapter can be screwed to the trailer or if you want a permanent application it can be welded to the trailer. view full answer...
It is very important to abide by the weight ratings. If the trailer is over 2,000 pound tongue weight, you definitely should not use the Convert-A-Ball. I usually recommend the Ranch Hitch, part # AM3100 for guys who have goosenecks in the truck and do not plan to ever tow the trailer with a fifth wheel. Though it can be removed, the Ranch Hitch is a more permanent conversion.
The Convert-A-Ball is something I typically recommend for guys that tow a lot of different trailers or if the same fi view full answer...
Since the tongue weight, or king pin weight, is 4,500 pounds, I recommend the Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter, # AM3100. The CAB-C5G adapter is only rated for 4,000 pounds tongue weight.
The AM3100 adapter is rated for 24,000 pounds gross trailer weight and 6,000 pounds tongue weight. This adapter is made of steel and has been tested and rated for these capacities and will hold up just fine in normal towing conditions and you will not experience problems with the view full answer...
To see what height you will need on your 5th Wheel-to-Gooseneck coupler adapter you can back your 2005 Dodge Ram 3500 4WD Dually truck into position as if you were hooking up your fifth-wheel trailer, making sure that the truck and trailer are level.
Make sure you have 4 inches of clearance between the top of the bed sides and the bottom of the trailer loft for pitch and roll. This should get you the right measurement to make a decision. Then, measure from the pin plate (the bottom of the pi view full answer...
Using a 5th wheel to Gooseneck adapter, like the Convert-A-Ball Multi-Cushioned 5th-Wheel-to-Gooseneck Coupler Adapter, # CAB-C5G, can apply added stress to the trailer frame. You will need to contact Keystone to determine if the trailer can be used with a 5th wheel to gooseneck adapter. The biggest drawback will be a decrease in ride quality.
If the trailer has an extended pin box or requires additional support, reinforcement of the trailer frame will be required and should be performed by a view full answer...
The Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter -12 to 16 Inch Tall, part # CAB-C5G , will allow you to use the gooseneck hitch in your 2001 Dodge Ram 2500 4WD truck and tow the fifth wheel camper. For safe operation the required clearance between the overhang of the fifth wheel and the top of the siderails of your truck is 6 inches.
To find the correct height coupler for your vehicle you will want to take a measurement. First, back your truck into position as if you were hooking view full answer...
The Convert-A-Ball fifth-wheel to gooseneck adapter # CAB-C5G should help with the bouncing and lurching you have been feeling, as the cushioning inside the adapter will soften the back and forth and up and down motions at the point where the trailer is connected to the vehicle. Movement would limited to a maximum of 3/4 of an inch, smoothing your ride considerably. You would also notice a difference in the severity of the hard jerks and loud clangs you get when pulling forward or stopping.
T view full answer...