Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
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.
Warning: 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. Also not compatible with any air ride 5th wheel king pin.
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.
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.
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.
Average Customer Rating: 4.8 out of 5 stars (128 Customer 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.
by: Joe Brutsche07/17/2014
The Product installed with no problem. I just got back from a 900 mi. round trip to Utah. I was in elevations from 1000 ft above sea level to 9000 ft. above sea level. I It hooks up very easy and is very good compared the my old system. I would have given it a Excellent except that it (rotated) turned about 1/4 of an inch.on the king pin as you can see on the Photos. I will be drilling holes in the King Pin Extension and putting in the four bolts before I take it out again. I was suprised that I did not receive the optional bolts nor was I asked if I wanted them. .I did order on line so I accept responsibility for it. At no time did I feel any safty issues. I had replaced the suspension on my trailer with the easy ride system and combined with your Convert-A-Ball Cushioned System my wife said there was a huge emprovement and I also felt a big difference it the Truck. It is a well engineered product and my raiting will go to Excellent after I put in the four Bolts. You can send me the bolts or I will get my own. Attached are some photos of my Truck and Trailer. The Trailer is a 2000 Forrest River Sierra Sport Toy Hauler. I bought it new. 9200 Dry. (2) 6500 lb Axels 1900 lb. on the Pin (est) If Questions, Feel free to call Have a Great Day JoeB 141891
by: Wayne The Sceptic02/27/2015
I don't often write reviews, practically never. But this one deserves one. So, I didn't buy it that you could use this adapter without bolting it to the trailer. Just a sleeve around the king pin and the hitch around the sleeve. Didn't buy it. But, they guarantee it to hold as long as you install it to their specks. So I did. Here's how the story goes. I was backing my camper into a garage and forgot to make sure the door was all the way up. You can see where this is going. I hit the door. Rolled out from under the door and discussed with myself, inspected the damage. This is not the impressive part. So distracted with what I've just done, I get everything straight and continue. Now this next part is important, I drive a dually pushing out just under 700hp. I can do doughnuts or sit and roast the tires. Not that I do, but I can. I like my stuff to last. I say that so that you don't brush off the impressive part. Once I got my camper into the garage I put my truck into first and sat there with my foot on the clutch thinking about the damage I'd just done and, absent mindedly, popped the clutch. Now granny gear has enough torque to slow the rotation of the earth, and I just unleashed it onto an unbolted hitch holding my camper above my truck. It snapped so hard that it slammed my head into my seat and broke off some small shavings in my rear end. Not my butt, the rear end of my drivetrain. But, the hitch held!!! Upon inspection nothing moved! Other than flipping my truck over, I don't know how to put anymore strain on it than that. Thank you so much for building a quality product!!! I'm sold! What just cost me a few hundred dollars in parts, broken ac and garage door, could have been thousands. Thanks again. Truly, thank you. 176431
by: Lori R.06/08/2013
We bought a 2001, 29' Keystone Montana 5th wheel,pulled by a 2008, F-450 with a gooseneck ball in the bed. I researched between the typical 5th wheel mount and the gooseneck conversion. YOUR videos and website gave me the most information, was clear even for a newbe like me and sealed the deal. The dealership that I purchased the 5th wheel from had never heard of this product and wanted to charge me about $125 installation for theirs because of the need to drill and weld. I told them about your product, gave them the You Tube and etrailer.com link. I bought yours and had it delivered to my house. The dealer was amazed at the ease of putting the unit on the 5th Wheel hitch and didn't charge me anything for the labor. I think they will be ordering product from you! Anyway, we have used it for only 2 weeks, it seems perfect in every way. Thank you so much for the ease of ordering, understandable videos, great website and order followup. The only suggestion I would have is to explain the difference in purchasing an offset unit vs. straight (like the one I bought) I was a bit jumpy about not knowing specifically which one I needed and why. Thanks for the great work, I am extremely pleased and I have been telling everyone about your company!!! 83825
by: keith h06/17/2013
I bought a newer pickup that had a ball in the bed of the pickup. I purchased your convert-a-ball adapter, and used it last weekend for the first time. I was very pleased with the ease of installing it. my wife and I did it ourselves. It worked perfect. I feel very safe pulling our heavy rv, and using the convert-a-ball. Thanks for your great invention. It was as good as advertised, and more. 84930
by: Dennis Adams11/01/2013
Good it was what I orderd just disapointed that UPS did not deliver it to my address, and not to my neighbor across the street. I was expecting the item on Friday and it arrived Thursday thanks 105988
by: Andi E06/24/2013
This product was a great way to keep the bed of my truck clear by using my flip up goose neck ball to pull my new 5th wheel. I just got back from my first trip pulling through Washington, Oregon, and Idaho and it pulled smooth and great! I had conditions from very hilly two lane roads with 6% slopes to 75mph interstates. I do have to say that the included release lever (the one you can use from the side of the truck) doesnt make any difference because you still have to climb into the truck to remove the chains. Also my truck is a F250 which sits stock a little taller and in the lowest (12") position the trailer rides at an angle up to the truck bed (photo)so a good idea to measure closely before purchase. 85769
by: Susan B09/03/2014
We ordered this and received it in 3 days. My husband and I installed it ourselves on a 1994 32 ft Coachman fifth wheel camper weighing 10,000 #s. The installation was just as the video showed. It is a really heavy and well made hitch. We are very pleased so far. It pulled just fine with our F350 crewcab duelly diesel. 149848
by: Preston H.04/01/2014
Great web site good information in the video. Halve the price of other products of its type. easy to install. ordered an had it in two days. Can't wait to get it out on the road with it. That's for a great product. 123122
by: Danny L06/01/2014
I just wanted to tell the folks at etrailer how great of an experance I had ordering from them. I ordered a 5th wheel to gooseneck adapter. From the time the phone rang until Wayne had taken my order was less than 2 minutes. These people know their stuff and the price was great. The install was flawless, fit perfect. I was kept informed several times by e mail what the status of my order was. My order came a day early even during a holiday week. I am sure glad to have some room in my p/u bed while pulling my 5th wheel. Thanks Wayne and thanks etrailer 133617
by: Mack P.05/09/2014
What an incredibly efficient and easy adapter to install! Even the shop that installed it wanted to know where I got it from because it was much easier to install than their own. Of course, I told them! Thanks so much e-trailer! 129810
by: Oscar Zacarias01/09/2015
Really happy with my purchase i made and a good investment. I recieved the fifth wheel to gooseneck adapter on time and next day i installed it on my fifth wheel trailer and it was very easy to do it. Instructions were plain and simple. If you dont have a buddy to help hold the adapter for you, i suggest you use a jack with a short 2x6 board to raise it in to position and begin tightneing the bolts. You do this by backing up your truck and you set the jack on the bed. I had no help so i worked with what i had... After installing it, and re inspecting everything, i took the trailer for a test drive on the dirt road and then on the paved road and it worked grea. Smooth ride, and very simple to lock and un lock the adapter from the ball. 168319
by: Rick Truelove07/11/2013
Set up was as simple as advertised. I was able to do it by myself. Only problem I had is the new 2013 Ram 3500's, the 5th Wheel/Gooseneck factory pre-installed tow package the safety chains are too short. I will have to buy some new chains to fit. I have not towed with it yet, but will post another review after I do. 89036
by: John W.03/31/2012
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
by: Todd G05/12/2014
I did receive my package today! Installed and ready for the weekend! Thanks so much for shipping it so soon after it was ordered! You guys at etrailer made my wife's Mothers Day alot more special! Thanks again! 130041
by: S. Fuller08/12/2013
This adapter was very easy to install. Was able to do it by myself in less than 30 minutes. Even thought you don't have to bolt this adapter to the hitch plate, the instruction say that a bolt up kit is available and free of charge. I would recommend this product. Also shipping from etrailer was very quick, and the price was right after shopping around. 94543
by: DWAYNE SMITH01/08/2015
I AM VERRY HAPPY WITH THIS PRODUCT. DANA help me out very much with my order. This is my second hitch, i let the first one go with the old camper. only because i hated to see the new owner weld the cheap junk he brong over for his truck, also it didnt have a cushion. if you dont get the cushion your camper will beat you to death. i also love the idea that i can snap this on in a few min and go. i did drill and bolt my last one after a while only for extra security, so to say i will do this one also. (the biggest thing is i cant beleve this is so cheap) 168154
by: Danny Dixon09/30/2014
I ordered CAB-C5G hitch adapter on Sunday and was surprised that some one answered the phone when I called. I received the CAB-C5G adapter hitch on Wednesday and was again surprised but happy to get it that fast! It took very little time to install it on my 30 foot Puma Toy Hauler and it pulls great! I had bought a weld on hitch for another camper a few years ago and left it on the camper when I sold it. I can now keep my hitch adapter when and if I trade this camper for another one. I use the same truck for all my trailers and it's a gooseneck ball. 153635
bolted on really easy and fast and you can switch back to a 5th wheel setup in 10minutes , you don't have to drill into your kingpin box witch every other adapter I looked at you had to do its really safe I work the oilfeilds I towed my camper 100 miles when I first got it most of it old log roads and it did great the camper dosnt wobble at all witch surprised me I thought it would compared to a 5th wheel set up, as always etrailer shipped it very fast and it was perfict when it arrived I've never had trouble with etrailer 114116
by: Kyle R.07/24/2015
Easy installation. Have only used it once so far to go about 400 miles rount trip up and down mountains and in some sand dunes. Didn't have any issues at all but I did notice some "jerking" when your truck is shifting gears. I have a 30ft toy hauler and it was full with toys so I just attributed it to the weight of the trailer pushing me forward while the truck was shifting and then the truck tugging back right after it shifts. It's very subtle but was enough for me to notice. Not sure if this is normal or just my setup... 214105
by: Dawn S.05/01/2012
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
by: David C06/29/2015
Well, I haven't installed it yet, but I can say that the customer service was excellent. I called in to ask a few questions that I was unclear on. Deborah H. answered all the questions I had, and then placed my order. She then emailed me directly to let me know when it had shipped, and even emailed me to let me know it arrived at my house. Customer service like that is hard to come by these days. I hope the performance of the unit is as good as the customer service. I should know soon! Thanks 208132
This was a clean and simple design that is easy to install. The video and instruction sheet made the install easy. Once installed, the unit made hook up and towing easy. The frustrating part about this is the use of square head bolts. They require the use of a crowfoot wrench to adapt to a torque wrench. These are not easy to find, and they are relatively expensive. Manufacture the bolts with hex heads instead so that a standard 1" socket can be used. 128798
by: Bobby B02/06/2015
great price!!. great service!! great pr oduct!! 172635
by: Jeremy D.11/18/2014
So far so good. Got the adapter as scheduled and installed it in about 30 minutes with the help of a friend and a pipe jackstand (just so I didn't have to hold it up the whole time. Haven't had a chance to road test it just yet, but it appears to be an extremely well built solution to not having the bed of my pickup full of a fifth wheel hitch. I'll try to update after I pull with it for a few hundred miles. 161684
by: John R.07/07/2012
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
by: Jim Clark03/11/2014
I ordered this product online and received excellent service, in a very timely fashion. The staff at e-trailer are 2nd to none and very professional with their business and service to their clients. I would highly recommend them to anyone in need of any product that they carry and distribute. I would and will use them again in the future as the need will surely arise. 120306
by: Dave B.07/21/2014
Absolutely outstanding product! I'll admit I was a little worried about using this type of adapter at first but my worried eased a bit when I saw how heavy-duty it was. My fears are completely gone now that I've towed my trailer over 400 miles on highways and off road through the mountains. It makes for a VERY solid, comfortable tow and I recommend it wholeheartedly. 142500
by: Harley L.02/27/2015
A great product,Install was fairly easy. However, I don't like the square bolts that secure the housing to the king pin collar. Couldn't get a 6 point 15/16 socket to work,but the 12 worked fine. Overall, I would recommend this to a friend. I haven't pulled my 33 1/2' Nu-wa Hitchhiker yet, so maybe I will write another review after I hit the trail. Happy Hookin!!! 176347
by: bud b11/09/2013
Great product! Install was quick and easy. Despite the weight I was able to install by myself in less than 20min. The adjustment is a nice feature as well. 106860
by: Bob S.01/27/2015
Shipped and received in a very short of time, put in on the trailer after I bought a torque wrench, which I needed any way, hooked it up to the truck and it fell right in place after a few attempts aligning it up, have a tool box in my line of sight, have not towed with it yet, seeing how it's winter here, but don't foresee any problems. 171421
I installed the convert a ball on my fifth wheel trailer, now I have a back and forth motion as I pull it, any suggestions.. 49587
I was blown away by how easy it turned out to be to install the adapter. I am a do it yourself er and very accustomed to running into significant issues on projects of this type. My 13 year old granddaughter and I installed it in less than 30 minutes without hick ups. I would recommend it to any one. 203540
by: Alex A.02/27/2015
Very well thought out product. I installed this hitch and drove the trailer 4 hours in the rain and never felt unsafe or uneasy about the stability. It takes less than an hour to install and very straight forward. I would recommend this product to anyone looking to convert to a gooseneck hitch. 176345
by: randy e.06/17/2014
found the adapter to be as good as advertised after installing adapter and pulling trailer i feel that is actually better than i had hope it to be. i would buy this adapter again it i needed one again very pleased.everyone very friendly and helpful.order got on time no hassles so thanks again. 135855
by: Heather Jones02/26/2014
The customer service when buying on line is usually lacking BUT... this has been a great experience with etrailers! We have received no less than three emails letting us know every detail along the way. Thank you so much for that piece of mind that was unexpected but VERY appreciated! 117826
by: Gerald H08/24/2014
I needed a product that would attach to the goose neck ball in the back of my truck.. This product exceeded my expectation. The price is fantastic and I don't have to worry about a 5th wheel set up on my truck....Easy to install....Also the shipping and the purchasing was fast.... 148227
Received hitch as promised, which was fast. I'm impressed with the quality and heft of hitch. Installed in minutes, hooked it to a 36' fifth wheeler and headed down the road. Two miles attempted to snug all bolts and all where snug, again at 25, then hundred. GOOD ENOUGH 188992
by: Henry S04/02/2014
Good Sturdy piece, I think it will be just what I needed and easy to use. I especially like the quick ordering and shipping service and appreciate the updating the type of shipping, that was a big +. Thanks for the service and the part I needed to get the trailer I bought. 123431
by: Tommy c09/02/2014
I have not had the chance to use the hitch adaptor that I have gotten from etrailer , but I am very happy with the look of the hitch and the speed at witch etrailer was able to get it to me, I have order a new truck and was expecting it this week but it has been delaided 149701
by: Shannon C.06/27/2014
Was not a big 5th wheel to gooseneck ball adapter fan, just didn't think they would hold up! But after seeing and installing (about 15 min) this product there is no doubt that it will do the job, no worries! Shipping was fast and customer service was awesome! Thank you! 137932
product works well as expected, delivery was quick. i used this on my camper. the rod that came with it works for locking the coupler but i still had to crawl over the box side to hook up the safety chains......... but this is still a good quality american made product. 137738
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
by: Matt P.12/18/2011
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. 28252
by: John S.06/10/2014
I was impressed with the prompt actions and delivery of the gooseneck adapter. It was installed and adjusted in about an hour. I haven't had an opportunity to pull the fifth wheel yet, but will try it out before our next trip in July. 135009
Really nice hitch simple to install 114588
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
by: Scott L01/24/2015
Great product it installed without a hitch (Ha Ha ) the installation video was very helpful and delivery time was great to California. the experts at etrailer were very helpful with selecting the right product for my application. 171104
by: Jim F02/26/2015
Perfect! Absolutely perfect! Just what I needed and it is everything I thought it was. If u have a goose neck, the fifth wheel to gooseneck converter is perfect. And it worked great. Took me and a friend 5 minutes to install it. 176284
by: Shaun Beck06/08/2014
This adapter was hard to locate however Etrailer did a great job of not only having it but the shipping was nice and fast with easy installation directions! Thank you and in the future I will order other items from your store! 134704
by: L. F.01/14/2009
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
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