13 Top Fifth Wheel to Gooseneck Adapter Options


If you want to free up space in the bed of your truck or if you’re just tired of hauling the heavy fifth wheel hitch in and out for every camping trip, using a gooseneck hitch is a great option. Towing with a gooseneck hitch is simple to do with a fifth wheel to gooseneck adapter!

If you want to try towing with a gooseneck hitch but don’t want to permanently convert your fifth wheel to a gooseneck, using an adapter is a great way to get a feel for it.

In this article, we’re going over 13 of the best fifth wheel to gooseneck adapter options on the market today. The first 10 are adapters that install on the pin box on your fifth wheel (no modifications required). The last 3 are the 3 highest-rated gooseneck to fifth wheel hitch adapters for the bed of your truck – no modifications required as long as you have fifth wheel hitch rails! 

Let’s dive in. 

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10 Best Fifth Wheel to Gooseneck Adapter Options

Best Fifth Wheel to Gooseneck Hitch Adapters

1. C5G Convert-a-Ball Cushioned Gooseneck Adapter

  • Tow weight rating: 20,000 lbs
  • Pin Weight Rating: 4,000 lbs

This Convert-a-Ball fifth wheel to gooseneck adapter is adjustable in height from 12” to 16”, making it a great choice for almost any fifth wheel. 

This adapter mounts directly to the king pin on the trailer with no drilling or welding required. 

The 360-degree cushion takes the beating on the road instead of your trailer or truck – this is a great adapter to have. 

This adapter comes with safety chains and a positive lock coupler so you can easily attach a padlock to secure the trailer when connected or parked.

2. Convert-A-Ball C5GX1216 Adjustable Gooseneck Adapter 12 – 16”

  • Tow Weight Rating: 20,000 lbs
  • Pin Weight Rating: 4,000 lbs

This adjustable Convert-a-Ball 5th wheel to gooseneck adapter adjusts in height from 12” to 16”. 

Made with durable cast-steel, it reduces bounce and vibration and is made to fit a wide range of fifth wheel/truck combinations.

This particular adapter has poly cushions to absorb shock for a smoother ride and help lessen the wear and tear on your vehicle and trailer.

3. Convert-A-Ball C5GX1216 Offset Fifth Wheel to Gooseneck Adapter

  • Tow Weight Rating: 20,000 lbs
  • Pin Weight Rating: 4,000 lbs

If you have a short bed truck or need a bit more clearance, you may need an offset fifth wheel to gooseneck adapter. This Convert-a-Ball offset 5th to gooseneck adapter is adjustable from 12” to 16” in height to fit many fifth wheel and truck combinations. It’s offset by 7.5” for more clearance when turning. 

This adapter has interior polyurethane cushions that act as shock absorbers for a smooth ride while minimizing wear and tear. 

Note: this adapter is not recommended for truck beds that are shorter than 6 feet in length. 

4. Camco Eaz-Lift Fifth Wheel to Gooseneck Adapter 17”

  • Tow Weight Rating: 30,000 lbs
  • Pin Weight Rating: 7,500 lbs

The Camco Eaz-Lift fifth wheel to gooseneck adapter comes in three different sizes: 12 inches, 15 inches, and 17 inches in height. 

For this adapter, you’ll need to measure and know exactly what size you need. While it may not be as convenient as an adjustable-height adapter, it’s almost $200 cheaper depending on the size you need. 

This adapter is simple to use and comes with everything you need to install it – no drilling or welding required.

5. T-Built 8” Fifth Wheel to Gooseneck Adapter

t built 8" fifth wheel to gooseneck adapter
  • Tow Weight Rating: 24,000 lbs

Of all the fifth wheel to gooseneck adapters on this list, the is the only one that comes in a height as short as 8 inches. 

The T Built 8” fifth wheel to gooseneck adapter is perfect for you if you need something a few inches shorter than all the other adapters out there. 

This adapter bolts right onto your king pin box for a quick and simple installation. Comes with all hardware needed for installation. 

6. T-Built Adjustable Fifth Wheel to Gooseneck Adapter

  • Tow Weight Rating: 24,000 lbs

Adjustable fifth wheel to gooseneck adapters are really convenient, so we wanted to include this adjustable adapter from T Built. 

This adapter is adjustable from 12” to 17” in height and bolts right onto your king pin box for a quick and easy install. It has 2” and 3” spacer blocks so you can get the perfect fit for almost any trailer and truck combination. 

7. T-Built Adjustable” with 7 3/4″ Forward Offset Gooseneck Adapter

t built offset fifth wheel to gooseneck adapter
  • Tow Weight Rating: 24,000 lbs

If you need an offset adjustable fifth wheel to gooseneck adapter, this one from T Built is a great option that costs considerably less than the competitors. 

This gooseneck adapter is adjustable in height from 12 inches to 17 inches and it has a forward offset of 7 3/4 inches.

The T Built offset adapter has a remote release cable and comes with everything you need for installation.

8. LDCRE C5G1216 Adjustable Cushioned RV 5th Wheel to Gooseneck Adapter 12″-16″

  • Tow Weight Rating: 20,000 lbs
  • Pin Weight Rating: 4,000 lbs

The LDCRE C5G1216 is an off-brand adjustable fifth wheel to gooseneck adapter that adjusts in height from 12” to 16”. 

This adapter is very similar to the Convert-a-Ball adjustable adapter, but it comes in at a much lower price point. 

This adapter has a 5-star rating and the only complaint is that it doesn’t come with instructions – a valid complaint, but it might be worth DIYing to save some money!

9. Gen-Y Torsion Flex Fifth Wheel to Gooseneck Coupler Box

  • Tow Weight Rating: 30,000 lbs
  • Pin Weight Rating: 5,500 lbs

The Gen-Y Executive Torsion-Flex 5th Wheel to Gooseneck Coupler is a pin box replacement instead of a temporary adapter. 

This is a great option for you if you want to use the gooseneck hitch on a more permanent basis. 

This is more expensive than temporary adapters, but it is much higher quality and has a lot of benefits for your truck, trailer, and overall towing experience. 

Plus, it won’t void the warranty if you have a new trailer like some adapters might. 

The Torsion-Flex technology allows for a much more stable and smooth ride and greatly minimizes the stress on the frame of your trailer. 

10. Reese Goose Box Fifth Wheel to Gooseneck Pin Box Converter

  • Tow Weight Rating: 16,000 lbs and 20,000 lbs

Like the Gen-Y, the Reese Gooseneck RV coupler is the world’s first OE approved Gooseneck adapter for fifth wheels. 

This is a pin box replacement that’s even endorsed by Lippert – and it won’t void your trailer warranty, either. 

This fifth wheel gooseneck pin box reduces the stress on your RV frame and provides a more comfortable and quiet towing experience. 

The Reese Goosebox comes in a 20,000 lb capacity and 16,000 lb capacity options. 

3 Best Fifth Wheel To Gooseneck Hitch Adapters

The first 10 adapters were for the fifth wheel king pin box on the trailer itself. Here are the 3 top-rated fifth wheel to gooseneck hitch adapters for the bed of your truck. 

1. Andersen Ultimate 5th Wheel to Gooseneck Hitch 

  • Tow Weight Rating: 24,000 lbs
  • Pin Weight Rating: 4,500 lbs

If you’ve been in the RVing world for a while, there’s a very good chance you’ve heard about the Andersen Ultimate Fifth Wheel Aluminum hitch. 

This fifth wheel to gooseneck adapter is pretty incredible. The lightweight yet incredibly strong aluminum is easy to install in the bed of your truck and the gooseneck adapter is extremely simple to use. 

The Andersen hitch doesn’t take up quite as much space as a fifth wheel hitch and it’s definitely not as heavy, although it does still take up a decent amount of space in the truck bed. 

The great thing about this hitch is that it’s made to be added and removed as often as you want it to, so it’s not a permanent addition to the bed of your truck. 

2. Curt Bent Plate 5th Wheel to Gooseneck Hitch Adapter

  • Tow Weight Rating: 25,000 lbs
  • Pin Weight Rating: 6,250 lbs

The Curt 16055 Bent Plate 5th wheel to gooseneck adapter hitch attaches easily onto the fifth wheel rails in the bed of your truck for seamless towing of gooseneck trailers. 

It has a welded 2-5/16” ball for towing and built-in safety slots. 

If you want to try gooseneck towing but don’t want to alter the bed of your truck for the ball hitch, this is a great option. 

3. Curt Spyder Fifth Wheel to Gooseneck Adapter Hitch

  • Tow Weight Rating: 30,000 lbs
  • Pin Weight Rating: 7,500 lbs

The Curt Spyder fifth wheel to gooseneck adapter is another great option for trying gooseneck towing without altering your truck bed. 

This adapter fits industry-standard fifth wheel hitch rails and has a standard 2-5/16” gooseneck ball welded directly into it. It has built-in safety chain hookups and is easy to install onto your fifth wheel hitch rails. 

Fifth Wheel to Gooseneck Adapter FAQ

Here are some answers to the most commonly asked questions about fifth wheel to gooseneck adapters.

What is a fifth wheel to gooseneck adapter? 

A fifth wheel to gooseneck adapter is an adapter that enables you to hook up a fifth wheel hitch to a gooseneck ball. A gooseneck is a 2-6/16″ ball hitch; it’s larger than a traditional ball hitch. The gooseneck ball is mounted in a hole in the bed of your truck with no need for a bulky and heavy fifth wheel hitch. The biggest benefit of using a gooseneck hitch is freeing up space in the bed of your truck.

Are fifth wheel to gooseneck adapters safe? 

Yes, fifth wheel to gooseneck adapters are safe. However, they’re not ideal for long-term use when towing an RV trailer.  Fifth wheel to gooseneck adapters work great to pair your trailer with your truck hitch. But if you plan on towing this exact combination long-term, it would be a good idea to match your hitch and coupler for less wear and tear on your vehicle and trailer.

In addition, using an adapter may void the warranty on your RV. So, swapping your entire pin box or your hitch may be the best option if you don’t want to void your warranty.

What size gooseneck adapter do I need? 

To figure out what size gooseneck adapter you need, back your truck up under your RV and then lower your RV to the desired height above your truck bed. Then, measure the distance from the top of the ball to the flat part of your pin box to determine what size gooseneck adapter you need. 

Many gooseneck adapters are adjustable from 12 to 17 inches in height.

Note: The recommended clearance is 6-8 inches of clearance between the RV and your truck bed.

Can I convert my fifth wheel to a gooseneck?

Yes, you can convert your fifth wheel to a gooseneck, and it’s a pretty simple process. You can do this by replacing your fifth wheel pin box with a gooseneck coupler, like this Reese coupler or the Gen-Y Gooseneck Pin Box converter coupler.

The Gen-Y and Reese couplers are very high quality and simple to install. Swapping out your pin box for either of these options won’t void your warranty, either!

How do you tow a fifth wheel with a gooseneck hitch?

You can tow a fifth wheel with a gooseneck hitch by using a fifth wheel to gooseneck adapter or replacing your 5th wheel king pin box with a gooseneck pin box. 

Does a gooseneck tow better than a fifth wheel?

In terms of ride comfort, a fifth wheel hitch provides a more comfortable ride and towing experience. But a gooseneck has many advantages like the ability to tow heavier trailers and taking up less space in the truck bed.

RVing Headquarters Team

RVing Headquarters is operated by long-time RV enthusiasts with over 8 years of RV industry expertise and full-time and part-time RV ownership experience. From motorhomes to trailers and campervans, we've done it all. Our Mission: to inspire, educate, and entertain anyone who is interested in the RV lifestyle.

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