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

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

Item # CAB-C5G
lowest price pledge
Retail:$647.30
Our Price: $463.09
You Save: $184.21
Gooseneck and Fifth Wheel Adapters
This item qualifies for Free Shipping
Shipping Weight: 66 lbs
Quantity: 
Convert-A-Ball Gooseneck and Fifth Wheel Adapters - CAB-C5G
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

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. Call 800-298-8924 to order Convert-A-Ball gooseneck and fifth wheel adapters part number CAB-C5G or order online at etrailer.com. Free expert support on all Convert-A-Ball products. Guaranteed Lowest Price and Fastest Shipping for Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter - 12" to 16" Tall - 20,000 lbs. Gooseneck and Fifth Wheel Adapters reviews from real customers.
  • All Info
  • Reviews (540)
  • Q & A (496)
  • Photos
  • Why etrailer?

Convert-A-Ball Gooseneck and Fifth Wheel Adapters - CAB-C5G

  • Fifth Wheel Trailer to Gooseneck Hitch
  • Bolts Over King Pin
  • Convert-A-Ball
  • Adapts Trailer
  • King Pin Adapters
  • 20000 lbs GTW
  • No Offset
  • Adjustable Height

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.
  • Not compatible with any cushioned or air ride 5th wheel king pin.

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 Reviews

Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter - 12" to 16" Tall - 20,000 lbs - CAB-C5G

Average Customer Rating:  4.8 out of 5 stars   (539 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.

- CAB-C5G
by:

Product was just as advertised. We have pulled with it twice and it performed flawlessly. We are pulling a 35 ft. 5th wheel travel trailer using the convert-a-ball onto our goose neck receiver in our F250 HD 7.3 liter diesel. Ordering through etrailer.com has become a great resource for us. 418680


Comments
We have, ironically, had that convert-a-ball on a unit in storage since the only time we moved it! However, the short time we used the convert-a-ball, the only concern we saw was that, due to the air bag king plate, there was rocking motion front to rear. This is not any fault of the convert-a-ball. When we do put the unit on the road if we can get it repaired then we plan to have the king plate air bag deflated and then weld the upper and lower sections together. In this way, there can be no rocking from braking and starting.
RC - 08/14/2018

42308

- CAB-C5G
by:

To be honest this adapter scared the heck out of me as I thought it wouldn't hold up and I was going to lose the trailer. I couldn't see how this adapter was as good or better than my standard 5th wheel hitch in my truck. However I was pleasantly surprised and proven wrong. We bought it because we were taking my father's truck , (Which was equipped to tow a goose-neck trailer), on a fishing trip that extended from Nevada, Oregon, Washington, Idaho and Montana with the return back through Montana, Idaho and my home in Nevada. We had one problem and that was when we I tried to remove the adapter so I can tow it with my truck and standard 5th wheel hitch. It took me an hour to remove it with a lot of effort. I was amazed that it was so secure it had seemed to become part of the trailer. Since then I put the adapter back on and abandoned my traditional 5th wheel hitch. I was sold on this item. You cannot go wrong if you are shopping for such an adapter. 390060



- CAB-C5G
by:

I was really skeptical of this product being able to hold onto the fifth wheel pin without coming loose or holding itself in place without it moving in some way. I installed it in about 20 min. rechecking the set screws and alignment. Hooked onto the trailer and pulled 8 1/2 hrs rechecking it once and it never budged a bit. It was really tested on some of the highways which were nothing short of being acceptable of pot holes and just horrible jolting from these chuck holes pulling a 16K fifth wheel. I was impressed to say the least and wouldn't hesitate to give it 5 stars out of 5. The holes in fifth wheel wheel attachment weren't used which I'm sure would give even more stability if there were concerns. 544701



- CAB-C5G
by:

This deal that I bought.... Works.. I like this one the best. I look at the other goose neck cuppler that others were trying to sell me. I like how it was easy to just bolt it on the king pin. I own a 2500 Dodge Ram it sets high. And the travel trailer sets low, so all I did was set the springs on top of the axels. Problem solved. We went to Florida to get this travel trailer and where I live in Tennessee and the route we took home,, well we mist the one road and ended up on the dragon tail (Hy 129 ) the twisting and turning the up and down that this road has to offer. Made it to Duck Town where we pick up Hy 68 north and the twisting and turning that this road has to offer before we made it home in Madisonville Tn.. The cuppler didn't loosen up. No wiggles or wobbles. I don't know how many foot pounds of what ever to tighten them bolts to... Because I couldn't read the instructions.... The shippers didn't put the instructions in its own pack nor in a safe place in the cuppler.. The video was a god sent. And I just used cheater bar on the wrench. Problem solved. I'm gonna recheck the bolts just to be sure before we take a trip. But I'm sure there tight. And I'll send you guys a note if I mess up.. But that cuppler is on there and I gonna drill out the pin box and bolt the cuppler to the pin box just for a pice of mine.. Legrand B 288187


Comments
I still like it. Its money well spent. We took the camper out a few more times and October first were fixing to take the camper trailer over the mountains in North Carolina and camp for a few days. So I still say its money well spent.. Legrand Bloomstine
Legrand B - 08/28/2017

27672

- CAB-C5G
by:

I want to thank Etrailer for the great customer service I received. Emily H, was very helpful in the process of my purchase. The c5g _1216 converter ball adapter was a very well made and sturdy product. And will handle the 39ft toyhauler that I have it installed on. The installation was very easy and simple. So thanks again Etrailer for a great product and fast delivery, and great customer service. Walter, R 233926


Comments
When I first received it I thought it would work out. But after using it for a couple of months, I had to remove it. The ride quality was terrible and the jerky ride while towing was unbearable. Plus the additional stress it put on the frame of my fifth wheel trailer over time would cause even more problems. So I removed it and installed a Curt fifth wheel hitch and now the ride is much better and smoother with no jerkiness. Would not recommend this adapter at all.
Walter, R - 12/16/2016

22070

- CAB-C5G
by:

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


Comments
it has worked wonderful for us. We got a pickup that can now haul both the camper and the boat So the hitch will be a great asset.It was easy to install and fit live a glove.Only downfall was UPS delivered it to our neighbors house and it took both of us to carry it to my house.
Dennis A - 11/04/2014

7564

- CAB-C5G
by:

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


Comments
FEELING YOUR PAIN BRO LOL. THOUGHT I WAS THE ONLY ONE LISTED UNDER murphys LAW .I also call mine stupid fees More than I care to reveal...Ps. wow the prices have doubled since my last rv 5th wheel to bed ball in 03
-- comment by: QC - 09/10/2015

14855

- CAB-C5G
by:

I recently bought a 36ft 5th wheel toy hauler and needed a way to pull it, we didn't really want to install a 5th wheel hitch because we didn't want the extra holes in the bed of the truck so we bought this. I was nervous at first but this hitch adapter work very well. It mounted to the 5th wheel easily and sat right on the gooseneck ball that came built into our truck. It also disconnected from the truck with ease. We have left it hooked onto the camper for now for quick movement if needed. 312825


Comments
I am still using the goose neck adapter, I now take it off if my camper is parked for a while just to reduce stress on the front end of the 5th wheel. I would recommend!
Lindsey - 11/01/2017

30298

- CAB-C5G
by:

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


Comments
Danny I notice you have a morryde pin box on your trailer. did you change the skid plate over to the morryde RPB77006 gooseneck adapter plate. to use this adapter?
-- comment by: Walter, R - 12/02/2015

16037

- CAB-C5G
by:

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


Comments
what is distance from rear bumper and lower front of fifth wheel. also it looks like you ,are at a skew with your adapter, is that with all the weight lowered on to the truck. if not how well does it tow like that.
-- comment by: donnie h - 09/13/2015

14925
Comments
The space between is about 2-1/2 feet. Plenty of room. That is how my hitch sets fully, its mostly due to me running 315s on my tires. But Ive pulled it all around the south and even up to the Great Lakes. Never once had a problem
-- comment by: John W - 09/21/2015

15126
Comments
thankyou for your answers
-- comment by: donnie h - 09/23/2015

15184

- CAB-C5G
by:

Really like it gives me more room in the bed of the truck with my hidden hitch. Saves a lot of time and work it’s heavy....it. Costs more than competitors.. but wouldn’t want to trust my safety with a Walmart brand converter hitch just to save a dollar. Short story long I am pleased with my purchase. 516255



- CAB-C5G
by:

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


Comments
How do you plan on installing the 4 additional bolts?
-- comment by: Carlos G - 07/27/2014

5932

In the installation instructions Convert-A-Ball discusses the optional installation of additional bolts. However, these bolts are available only for the customer to contact the manfucturer, and are not sold individually. To gain access this is usually done by disassembling the pin box, or by drilling access holes in the plate, but this all depends on the configuration of your pin box, and if this adapter is intended to be a temporary or a permanent solution.

-- Rachael H - 7/29/2014

Comments
I did as I said I would do and I drilled four hole in the pin box and installed four bolts. I feel much more confident in the system. I am very happy with it at this time. To drill the holes I removed the pin box and used the adapter for a pattern, I then drilled the holes by hand. 1/2 in Drill
Joe B - 07/17/2015

13399
Comments
Joe, what is the box length of your Ram?
-- comment by: Raymond L - 10/21/2015

15636
Comments
Raymond L.: My Ram is a 3500 4X4 SRW It has the 8Ft bed. I pulled the same Toy Hauler with two different Quad Cab PUs over the years with 6-12 ft. beds. One 2WD and one 4X4 before this one. I ordered this P/U as a Std. Cab. It is set up like a Laramie inside. towing I get 10-13 MPG. Empty 22 MPG It tows at any speed I want in the Mountains.
-- comment by: JoeB - 10/26/2015

15681

- CAB-C5G
by:

Installation is a breeze. I'm a short but stocky guy so installing it by myself wasn't hard at all. I just lowered the trailer to where I had enough leverage to hold the adapter up and be able to tighten the bolts down with the other hand. Torqued everything down to spec and was on the road in no time. Pulled off after 50 miles and retorqued everything as any good transporter does. This is where my review gets bad. The bolts that hold the adapter to the kingpin couple failed. They crushed on the ends and damaged the threads. Keep in mind, I followed the torque specs TWICE. I didn't have the twisting issues that others have had. It took me 30 min with a pull bar and a piece of pipe to get the bolts backed off enough to get the adapter off the kingpin coupler. Today I spent 30 min working ONE bolt completely out of the adapter and this is what I found. I am in contact with etrailer to get it resolved. The bolts and the inner threads are damaged. Hopefully this is just a lemon and I will get a replacement hassle free. Other than this, this is a great design and towed well. 233183


Comments
Great product but the bolt crushing problem is a major one that I am working directly with Convert-a-ball to get fixed. They admit it is on their end and we are working on
Joe N - 12/05/2016

21989

- CAB-C5G
by:

We just installed and pulled a 5th wheel toy hauler 400 miles!! A what a great product, converter was heavy duty, 1 1/2 hours to install and set up. We have been pulling a goose neck horse trailer for years and was so happy that this adapter enabled us to haul this new trailer without any problems. The toy hauler (10,000 lbs empty) pulling was great and tracked straight, even with the 25+ miles per hour of wind all the way home. Just went between 55 and 60 miles per hour no problems. We are pulling the trailer with a 1999 F250 Superduty. Also have to say that etrailers customer service, especially Kim P. was the best!! They now have a new customer for life! 453174



- CAB-C5G
by:

904251



- CAB-C5G
by:

It was very easy to install, stayed tight on the trailer and it priced right. The best part is using a gooseneck hitch on the pickup and not having to handle a fifth wheel hitch. Just flip the hitch ball over and the truck bed is clear. 903610



- CAB-C5G
by:

Perfect for a 5th wheel to gooseneck conversion. I bolted it on and drove my new 35 ft. Toy hauler from Massachusetts to Virginia with no problems. Thank You etrailer. On time delivery too. 903504



- CAB-C5G
by:

Very easy install and tows great 903415



- CAB-C5G
by:

Nice - heavy duty. 896040



- CAB-C5G
by:

Does the job! Works great and easy to install! 894840



- CAB-C5G
by:

Working great don’t have to have big 5th wheel hitch in truck 892075



- CAB-C5G
by:

You was very helpful in getting us what we wanted. The quality was very good. 886955



- CAB-C5G
by:

Durable works well 883048



- CAB-C5G
by:

It works well. The only issue is the lock what open and release from ball... find you have to be level for easy detach but all in all works great 880410



- CAB-C5G
by:

After using the adapter a bunch of times for a year..very happy with the quality and works great. No issues or complaints. 877183


47
579
Show More Reviews

Ask the Experts about this Convert-A-Ball Gooseneck and Fifth Wheel Adapters

  • 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 gooseneck hitch ball # RP19311 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...
    view full answer...
  • 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...
  • Recommended Clearance Between Truck Camper and Towed Enclosed Box Trailer
    If your truck camper's rear Rieco jacks have contacted the front of your box trailer you'll need either a longer SuperTruss extension like the 48-inch # TLE1548 or an extra long ball mount # 80232 to increase your turning clearance. This 2-inch ball mount gives you over 15-inches of clearance from the hitch pin hole to the 1-inch diameter ball hole. If you compare this to your current ball mount you'll know how many inches of additional clearance you can add without having to swap out...
    view full answer...
  • Fifth Wheel Trailer to Gooseneck Hitch Adapter for Venture or Steelco/Davis Pin Box
    While we have an option for you, the Reese Goose Boxes are only confirmed fits to replace certain Lippert and Fabex pin boxes, so you will need a 5th wheel to gooseneck adapter that bolts onto your king pin. For that I recommend the Convert-A-Ball, and you can choose from a standard adapter or one with an offset. - Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G - Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter with Offset # CAB-C5GX1216 These will work...
    view full answer...
  • Fifth Wheel Hitch to Gooseneck Hitch Adapter Recommendation for a 2005 Flagstaff Fifth Wheel
    The most popular adapter we offer for converting a fifth wheel hitch to a gooseneck hitch is the Convert a Ball Adapter part # CAB-C5G which will attach to the king pin of your trailer's pin box and then would provide you with a gooseneck coupler mounted at the end of it. I attached an install video for you to check out as well.
    view full answer...
  • Options To Reduce Chucking with a 2014 Ram 2500 Towing a Fifth Wheel Trailer with Companion Hitch
    There are more moving parts with fifth wheel hitches so there is more of a chance for the hitch and trailer to "chuck," or have a rougher ride. However, a nicer fifth wheel hitch that has a jaw design that makes great contact with the king pin will provide a smooth ride as well. If the trailer was originally a fifth wheel trailer I would recommend you stick with a fifth wheel hitch. Especially if you saw an improvement by going to the Companion hitch. Another option you have to improve...
    view full answer...
  • How To Select the Right Height Adapter for My Gooseneck to 5th Wheel King Pin
    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...
  • How To Lock Out Lippert Turning Point To Use Convert-A-Ball Adapter
    It sounds like you have the Lippert Turning Point Pin box and to use the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter part # CAB-C5G the pin box does need to be locked out or it won't tow the fifth wheel properly with the adapter. There are two bolts installed on the back of the pin box (if you have the turning point) that need to be torqued down to 200 ft lbs to lock the pin box.
    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...
  • Will Using Convert-A-Ball 5th-Wheel-to-Gooseneck Adapter Void Trailer Warranty
    Using the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G does void the manufacturer's warranty on some 5th wheel trailers because of the added stress that it puts onto the frame. To determine if this is the case for you though you will just want to contact your trailer's manufacturer. For a trailer mounted adapter that doesn't have this same issue I recommend taking a look at a Reese Goose Box like the 20K # RP94720. These are designed to actually replace the existing...
    view full answer...
  • Troubleshooting Chucking with Rota Flex Pin Box and Fifth Wheel Gooseneck Adapter
    Chucking and bucking is not typically the fault of the pin box and is more commonly associated with the fifth wheel hitch or adapter used. We have spoken with Lippert before about the Rota Flex pin box and hitch adapters and they do not recommend the use of these two together. This is due to the forward and rearward movement in this pin box. You should go to a standard fifth wheel hitch and you'll have a much safer and smoother ride quality. What length of bed and gooseneck hitch do...
    view full answer...
  • 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.
    view full answer...
  • Will An Adapter Be Needed for a Convert-A-Ball Gooseneck Adapter to Attach to a Mor/Ryde Pin Box?
    Good news! The # CAB-C5G will work well with your Mor/Ryde pin box without an adapter, but to answer your question there are no custom fit adapters that we offer designed to specifically work with the Mor/Ryde pin box and CAB-C5G. The Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G that you referenced is a universal fifth wheel to gooseneck adapter that would work well on your new Mor/Ryde pin box. I have linked the Convert-A-Ball adapter to this page for your...
    view full answer...
  • Will the Convert-A-Ball 5th-Wheel-to-Gooseneck Adapter # CAB-C5G Install on 5th Airborne Pin Box
    The Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G would work with a 5th Airborne pin box because it installs with set screws. Check out the review video I attached for this product. The only time you would not be able to use this adapter with a 5th Airborne would be if it was also a Sidewinder.
    view full answer...
  • Is It Okay to Use Fifth Wheel to Gooseneck Adapter on Yellowstone RV
    Sometimes fifth wheel adapters like the # CAB-C5G void the warranty of the trailer they are installed on. That said, we've not had any issues on trailer frames caused by adapters like this so I'd doubt you'd ever have a problem but it's maybe not the most ideal solution for a full-timer. I attached an install video for this for you to check out as well.
    view full answer...
  • Is There a Reese GooseBox Available for To Replace a Fabex Pin Box
    I have a solution for you, but it's tough for me to match up your pin box without exact dimensions. It looks like you might have a Fabex pin box, which there is not a Reese Goosebox available. Instead you can use the Convert-A-Ball 5th Wheel to Gooseneck Adapter # CAB-C5G which will allow you to use your existing pinbox with your gooseneck hitch in the same manner. This would be a much more cost effective solution and because the Covert-A-Ball is cushioned, you're not sacrificing any ride...
    view full answer...
  • 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...
  • How to Pick Between Off-Set and Non-Offset Convert a Ball Fifth Wheel to Gooseneck Adapter
    If you have a long bed truck the non-offset part # CAB-C5G would work well as an adapter. If the truck is a short bed using the offset # CAB-C5GX1216 helps give you a bit more clearance since it has adds an offset of 7-1/2 inches. If the truck bed is shorter than 6 feet neither adapter is going to work well since you would need more clearance. Unless the nose of the trailer happens to be very narrow.
    view full answer...
  • Tools Needed to Install Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter
    To install the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G referenced in your question you will just need a 3/8 inch allen wrench, a 1-1/8 inch wrench and torque wrench with a 3/4 inch 8pt socket. I have attached a couple images from the installation instructions along with an installation video that you might also find helpful.
    view full answer...
  • Can the Offset Convert-A-Ball 5th Wheel to Gooseneck Adapter be Converted to the Straight Adapter
    You don't have to convert the adapter that you have. It can still be used despite the bed length of the truck. The only thing the offset does is increase the distance between the back of the truck and the trailer which is more likely to be needed on long bed (as well as flatbed) trucks. The offset does not increase the turning clearance. But if you wanted to do it anyway so that you have an option for either the offset or straight adapter you would need replacement boot # C5G-BOOT. It...
    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...
  • Convert-A-Ball Gooseneck Fifth Wheel Adapter Pin Box and Fifth Wheel Trailer Compatibility
    The Convert-A-Ball 5th-Wheel-to-Gooseneck Adapter # CAB-C5G will work with your 2008 Gulfstream Canyon Trail and OEM 1621 pin box set up as long as you don't have the Elite Series or an OEM under bed gooseneck hitch in your tow vehicle. Make sure to back up your truck under the trailer and measure from the top of the ball in the truck bed to the base of the pin box on the trailer as well. If this measurement is between 12" - 16" then you're all set. The direct replacement for a worn out...
    view full answer...
  • Comparing The Convert-A-Ball Goosneck Adapter To The B&W Companion 5th Wheel Hitch
    The Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter - 12" to 16" Tall - 20,000 lbs, # CAB-C5G, is a good adapter, but every adapter has it's weak points. They add unnecessary stress to your hitch and trailer frame and some manufacturers recommend adapters like this not be used with their pin boxes, but they do work well for the weekend getaway from time to time as long as the manufacturer approves its use. The B&W Companion 5th Wheel Trailer Hitch - Dual Jaw - 20,000 lbs, #...
    view full answer...
  • Best Adapters for Towing a 5th Wheel Trailer with Gooseneck Hitch in a 2015 Ram 2500 Short Bed
    The best 5th wheel to gooseneck adapters are the Reese Goose Boxes. There are several Goose Boxes and each fits in place of certain pin boxes. # RP94716 fits Lippert 0719, 1621 and 1621HD as well as Fabex PB-600 Series pin boxes and is rated for 16,000 pounds. # RP94720 fits Lippert 1621, and 1621HD pin boxes and is rated for 20,000 pounds. # RP94716-61301 fits Lippert 0115, 1116 and 1716 pin boxes and is rated for 16,000 pounds. But depending on the width of the trailer the...
    view full answer...
  • How Long Should Safety Chains be for Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter
    Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G comes with safety chains that will be compatible with the safety chain loops in Curt kit # C60618. Another option is to use # AM3109 which is for a similar adapter from Andersen. Since in either case the chains are attached to the adapter they do not have to be very long at all; about 36 inches or so. The chains need to be rated at or above what the adapter is rated for.
    view full answer...
  • Will the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter Void Trailer Warranty
    The Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter part # CAB-C5G and Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter part # AM3100 can possibly void the warranty of the trailer frame. That said, this would be up to the manufacturer and not a question we can answer. This is all of course assuming the trailer manufacturer warranty is still valid. If you are looking for an option that won't void the trailer frame, we can however confirm the Reese Goose Box 5th-Wheel-to-Gooseneck...
    view full answer...
  • Can Gooseneck Adapter for Lippert Turning Point Pin Box for Nissan Titan XD
    The Lippert Turning Point pin box actually has a unique pin box mounting bolt hole configuration so it cannot be interchanged with another pin box, like the (discontinued) Reese Goose Box, but I do have an alternative solution for you. If you lockout the Turning Point pin box it then becomes a standard pin box and you can use an adapter like the Convert-A-Ball # CAB-C5G to make it compatible with a gooseneck hitch ball on your Nissan Titan XD. Please note that this will move your...
    view full answer...
  • Install Instructions for the Convert-A-Ball 5th-to-Gooseneck-Adapter # CAB-C5G
    The Installation Instructions for the Convert-A-Ball Cushoined 5th-Wheel-to-Gooseneck Adapter # CAB-C5G says to tighten down the cap screws to approximately 100 ft. lbs. Keep in mind that you will need someone to help hold the adapter while someone else tightens the cap screws since the adapter weighs over 50 lbs. If you are wanting some added security for peace of mind, you can use the Master Lock Padlocks # 141T to help deter theft of your adapter. I have included a demonstration...
    view full answer...

Do you have a question about this Gooseneck and Fifth Wheel Adapter?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality gooseneck and fifth wheel adapters for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate gooseneck and fifth wheel adapter information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Test Fit:
Joe V
Expert Research:
Jackie C
Expert Research:
Mike L
Expert Research:
Sarah L
Expert Research:
Robert G
Expert Research:
Michael H
Expert Research:
Jeff D
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Expert Research:
Jeffrey L
Video by:
Andrew K
Updated by:
Adele M
Updated by:
Laura H
Updated by:
Sarah W
Updated by:
Hannah L
Updated by:
Noah M

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.