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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 w/ Offset - 12" to 16" Tall
Convert-A-Ball

Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter w/ Offset - 12" to 16" Tall

Part Number: CAB-C5GX1216
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$750.49
Retail:$964.81
You Save: $214.32
5th Wheel Gooseneck Adapter
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Use your gooseneck hitch to tow your 5th-wheel trailer by hooking up with this coupler adapter. Poly cushions absorb shock for a smooth ride. Adjustable height fits multiple applications. Offset design is perfect for short-bed pickups. 20,000-lb GTW. 1-800-940-8924 to order Convert-A-Ball 5th wheel gooseneck adapter part number CAB-C5GX1216 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 w/ Offset - 12" to 16" Tall. 5th Wheel Gooseneck Adapter reviews from real customers.
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Convert-A-Ball 5th Wheel Gooseneck Adapter - CAB-C5GX1216

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

Use your gooseneck hitch to tow your 5th-wheel trailer by hooking up with this coupler adapter. Poly cushions absorb shock for a smooth ride. Adjustable height fits multiple applications. Offset design is perfect for short-bed pickups. 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
  • Offset design provides additional clearance when making turns with short-bed pickups
    • Not recommended for trucks with beds shorter than 6'
  • 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:

  • Application: 2-5/16" gooseneck hitch balls
  • Towing capacity: 20,000 lbs
  • Pin weight capacity: 4,000 lbs
  • Height: 12" - 16"
  • Offset: 7-1/2"
  • Safety chain overall length: 25-1/2"
  • 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.
    • Any adapter that attaches in this way may void your trailer's warranty.
  • 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. Because this adapter is designed with an offset, the top lip of the adapter must also be bolted to the base of the pin box to ensure proper positioning.


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.


Offset Design

This coupler adapter is specially designed for use with truck beds that are between 6 feet and 8 feet in length. The offset allows your trailer to sit a bit farther back than it normally would so that you can make turns safely and with confidence. Supplying that extra space between your trailer and truck cab creates the clearance necessary for you to make tight turns without your trailer hitting your cab.



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.



C5GX1216 Convert-A-Ball Adjustable Fifth-Wheel-to-Gooseneck Coupler Adapter with 7-1/2" Offset - 12" to 16"

Replaces 5GX1214 and 5GX1416





Customer Satisfaction Score:

Ratings & Reviews

4.7

959 reviews
Use your gooseneck hitch to tow your 5th-wheel trailer by hooking up with this coupler adapter. Poly cushions absorb shock for a smooth ride. Adjustable height fits multiple applications. Offset design is perfect for short-bed pickups. 20,000-lb GTW.

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

  • Can a Sidewinder be Used with a Gooseneck Coupler Adapter
    No, Reese does not recommend the use of any kind of adapter with the Sidewinder Fifth Wheel King Pins or the Fifth Airborne Sidewinder products. If you would like to send me some information about your vehicle and the trailer you will be towing, I will be glad to try to make a recommendation for you that includes a gooseneck adapter. The length of your truck bed, the distance from the gooseneck ball to the back of the cab, the width of the trailer and the amount of any pin box extension...
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  • What Percent of a 5th Wheel Trailer King Pin Should be the Tongue Weight
    A basic rule to go by is that the tongue weight of a 5th wheel trailer is about 20 percent of the gross trailer weight. Based on the 5th wheel trailer dry weight of 13,400 pounds the dry hitch weight is correct at 2,535 pounds. Just under the 20 percent of the 5th wheel dry weight or precisely 18.9 percent. The tongue weight of the 5th wheel trailer at 20 percent is 2,680 pounds based on a dry weight of 13,400 pounds. So as long as you keep your tongue weight at 3,000 pounds or below...
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  • Can a Dodge Ram 1500 with 16K 5th Wheel Safely Pull 9,300 lbs Trailer
    The towing capacity of a truck can vary greatly according to how that truck is equipped. You should be able to find the tow ratings on your truck in the owner's manual or inside the driver's door jamb. Most likely the capacity of the 5th wheel hitch installed on your Ram pickup (16,000 lbs. capacity) is rated higher than the vehicle tow rating. You will need to abide by whichever rating is lower. Provided you stay within the limits of the lowest-rated component of your system, you can...
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  • Dimensions of the Demco 5th Wheel Base Rails Adapter Part # DM6140
    Yes, the Demco 5th Wheel Base Rails Adapter part # DM6140 will fit the B&W Turnoverball Underbed Gooseneck Trailer Hitch part # BWGNRK1111 on your 2015 Ford F-250. There is no drilling required to install this adapter. All you need to do is release the handle for the hitch ball and drop the adapter into the gooseneck hitch ball opening. The overall dimensions of the adapter plate are 36" long (side to side) x 28" wide (front to back). I have attached a review video of the adapter for you...
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  • 5th Wheel Base Rail Fit on 2019 Ram 1500 Short Bed With Factory Air Suspension
    There is one option for 5th wheel base rails that fit your 2019 Ram 1500 short bed with air suspension, so long as your truck does not have the Multi-Function tailgate. The correct fit for your truck is the following: - Reese Quick-Install Custom Outboard Installation Kit w/ Base Rails # RP56018-53 The Reese base rails # RP56018-53 will allow you to mount any standard 5th wheel hitch, including the Curt A16 # C16120 you mentioned. These are a no-drill install on your truck, which is not...
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  • Does Pin Box Mounting Plate Have to be Drilled to Install Convert A Ball part # CAB-C5GX1216
    Actually to install the Convert A Ball Adapter part # CAB-C5GX1216 on your trailer you don't have to drill any holes in the pin box plate. Convert-A-Ball states that they guarantee that the adapter will stay in place without drilling holes, but if you would rather drill the holes you can. You would have to be able to access the inside of the pin box to get the hardware through the holes so most opt to not drill the holes.
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  • Why Couldnt Convert-A-Ball Fifth Wheel/Gooseneck Adapter Be Used with 2019 Ford F250 Super Duty
    The Convert-a-Ball Adapter # CAB-C5GX1216 that you referenced can't be used with gooseneck balls that have the plastic latch mechanisms on the top of the balls like what you most likely have. These are known as "pop-in" balls. The issue is that the Convert a Ball ends up damaging the release mechanism. [Edit: if the latch is metal it won't be an issue] We do have the very similar Ranch Hitch Adapter part # AM3139 which you could use as it does not have this fit exclusion. It's the same...
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  • 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...
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  • Should Adapter with Offset be Used to Tow 5th Wheel with a 2007 Chevy Silverado Short Bed Gooseneck
    Since you have a short bed I highly recommend using the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5GX1216. This will allow you to still utilize your gooseneck hitch and provides you with 7-1/2" of offset that should make it so that you have cab clearance while turning. To make sure that the 7-1/2" of extra room will give you adequate clearance you can use the clearance formula which is: (A + B) - C = Clearance A = Distance from center of fifth wheel hitch jaw (or...
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    For a truck bed that is shorter than 6 feet in length you'd need a hitch solution that can provide more turning clearance than the Curt A16 slider hitch you mentioned as it only can provide 12 inches of additional clearance. Normally for a 5-1/2 foot bed you'd need around 22 inches of clearance. Since there aren't currently any slider hitches that will provide that much clearance the solution is Sidewinder pin box with a fixed hitch like the Curt E16 5th Wheel Trailer Hitch - Slide Bar...
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  • 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....
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  • Will The Convert-A-Ball Adapter w/ Offset CAB-C5GX1216 Work With MORryde Pin Box?
    Hello Phillip, thanks for getting in touch. The Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter w/ Offset # CAB-C5GX1216, but there are a few exclusions to keep in mind. The Convert-A-Ball adapter will not work with a sidewinder pin box. It is also not compatible with any cushioned or air ride pin boxes. The adapter will not work with a gooseneck ball that installs into an OEM prep package, specifically a ball that has a locking lever integrated into the ball. The adapter will...
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  • 5TH Wheel Leland 7920 Pin Box To Gooseneck Hitch Adapter That Will Reduce Road Shock and Bouncing
    I have a solution to help with the chucking that you are experiencing as there is not a Reese Goosebox that fits the same bolt pattern used by the Leland 7920 Pinbox. The bolt hole spacing on your pin box is different vertically and horizontal from any of the cushioned 5th wheel pin box to gooseneck hitch pin box replacements that are currently available. I recommend either the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G for a long bed truck or their Offset Adapter...
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  • Can Goose Box be Used with Short Bed Truck
    The Reese Goose Boxes like the 20K Air Ride # RP85FR referenced in your question are pin box specific. This means they are designed to replace specific pin box models on the trailer so you will want to first make sure that it will be compatible. This particular unit is designed to replace the Lippert 1621, 1621HD, and 0719 pin boxes. The existing pin box on your trailer should have a sticker or plate on it that lists its model. Turning clearance may indeed be an issue with the Goose Box...
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  • Can Convert a Ball Fifth Wheel Gooseneck Adapter be Used with Reese Sidewinder Pin Box
    If you Sidewinder is locked out meaning it can't pivot to either side and essentially works like a standard pin box it can be used with your Convert a Ball adapter # CAB-C5GX1216 but if your Sidewinder is not locked out it would not be a safe setup and you'd need to lock it out before towing. I attached a picture that shows how the Sidewinders are locked out.
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  • Recommendation for a 2014 Ram 2500 Short Bed To Navigate Tight Campground Turns
    I can help you navigate those tight turns in your 2014 Ram 2500. Since the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5GX1216 that you referenced does not move the pivot point further back you really do not gain much clearance for tight turns with a short bed truck. Also, if you use an offset adapter like this you can not use an additional offset adapter like the B and W extender you referenced. This would cause too much leverage on the trailer. Instead I would highly...
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  • What is Towing Capacity of 2020 Ram 2500
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  • Recommended Gooseneck to 5th Wheel Hitch Adapter for a 2014 Chevy Silverado 2500 with B&W Gooseneck
    We actually have quite a few products that you can use as a 5th Wheel to Gooseneck adapter, I am linking the product selection page so you can view the different options to see what you might like. Unfortunately we do not offer any replacement pin boxes that are compatible with your RBW 7028 pin box. Although we have many options, there are a few choices that are much better than other options. Since you have a short bed, the recommended 5th Wheel Hitch for you would be a sliding 5th...
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  • Does Convert a Ball Fifth Wheel Adapter Void Trailer Frame Warranty
    Hey Tom, we do have the disclaimer that the Convert a Ball # CAB-C5GX1216 does technically void the warranty of the RV frame it attaches to shown on the product page. Worth mentioning is we have yet to hear of any problems and we have sold quite a few of these.
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    view full answer...


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