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Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches
B and W

Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches

Part Number: BWGNRK1016-5W
In Stock
$599.00
5th Wheel Hitch Rails

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Install a Companion fifth-wheel hitch in your truck bed with this custom kit. Better than a traditional mounting kit, this setup doubles as a gooseneck hitch when the fifth wheel is removed, and the underbed design allows for full bed access. 1-800-940-8924 to order B and W 5th wheel hitch rails part number BWGNRK1016-5W or order online at etrailer.com. Free expert support on all B and W products. Great prices and Fastest Shipping for Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches. 5th Wheel Hitch Rails reviews from real customers.
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  • Reviews (34)
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2017 GMC Sierra 2500 - Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches

  • Below the Bed
  • Custom
  • B and W

Install a Companion fifth-wheel hitch in your truck bed with this custom kit. Better than a traditional mounting kit, this setup doubles as a gooseneck hitch when the fifth wheel is removed, and the underbed design allows for full bed access.


Features:

  • Lets you install your B&W Companion 5th wheel trailer hitch (BWRVK3500 or BWRVK3400)
  • Doubles as heavy-duty Turnoverball gooseneck trailer hitch
    • Includes rails, gooseneck hitch head, safety chain loops, and hitch ball
  • Provides complete truck bed access when you're not towing
    • Single hole in center of bed is mounting point for hitch
  • Installs easily using existing holes in your vehicle's frame
    • No welding or frame drilling required
    • Truck bed does not have to be removed
    • 4" Diameter hole must be cut into bed
  • Powder coated steel is sturdy and corrosion resistant
  • Made in the USA
  • Limited lifetime warranty


B&W Turnoverball Gooseneck Trailer Hitch

B&W Turnoverball Gooseneck Hitch

Not only does this kit provide you with a sturdy, custom base for installing your Companion fifth-wheel trailer hitch in the bed of your truck, but it also doubles as one of the most recognizable gooseneck hitches on the market. This fifth wheel installation kit actually is the Turnoverball gooseneck hitch from B&W.


Gooseneck Specs:

  • Gross towing weight: 30,000 lbs
  • Vertical load limit: 7,500 lbs
  • Ball size: 2-5/16"

B&W Companion Installed in Turnoverball Gooseneck Hitch

With the B&W Turnoverball underbed gooseneck trailer hitch you get the best of both worlds. When you go to tow a gooseneck trailer, the Turnoverball creates a sturdy, dependable connection with your trailer. And when you're done towing, you can stow the ball upside down in the hitch to get full bed access and a clean appearance. When you're ready to tow your fifth wheel trailer, just install the Companion in the ball hole in place of the gooseneck ball and lock the post in place using the built-in handle. You can remove the fifth wheel when you're done towing, leaving your truck bed open once again.


Simple, Custom Installation

This kit is custom designed for your vehicle. The mounting brackets bolt to existing holes in your truck's frame. While some modification is required - you will need to cut a 4" diameter hole in your bed for the hitch ball and drill holes for the built-in safety chain loops - there is no need to weld onto or to drill into your frame.


Once you have the brackets and center section installed, set up the operating handle. This handle is designed to be accessed from the rear driver's-side wheel well. On the end of the handle is the heavy-duty steel pin that secures the mounting post of the Companion (or the base of the gooseneck hitch ball).



GNRM1016 B and W Turn Over Ball Gooseneck Custom Installation Kit

GNRC912 B and W Turn Over Ball Under Bed Gooseneck Hitch Center Section

Installation Details BWGNRK1016-5W Installation instructions

California residents: click here



Customer Reviews

Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches - BWGNRK1016-5W

Average Customer Rating:  4.9 out of 5 stars   (34 Customer Reviews)

Install a Companion fifth-wheel hitch in your truck bed with this custom kit. Better than a traditional mounting kit, this setup doubles as a gooseneck hitch when the fifth wheel is removed, and the underbed design allows for full bed access.

by:
2016 Chevrolet Silverado 2500

Installed this unit myself and worked perfect. Everything was clearly provided in the directions. If you follow the directions exactly everything goes in perfectly smooth. Like the setup allowing use of my bed if needed. I also got the 5th wheel unit and both the 5th wheel and gooseneck are great options.



by:

Install is possible for one person, much easier with two. It can be done on the ground without removing the spare tire. It took me a little over 3 hours to do alone.



by:

B&W is the standard bearer of the 5th wheel hitch industry. You can tell It is very well made. It gives me confidence when towing. etrailer made the purchase easy and is my one stop towing equipment provider.



by:
2018 Chevrolet Silverado

Nice looking setup. Took me 6 hours to install the gooseneck, and 5th wheel by myself with no lifting equipment in my 2018 Silverado 3500. Everything lined up nice. It was a bit heavy, but I like a challenge. Suggest not to over compensate for the spray-in bed liner, I wish I would not have added any extra to the dimension given in the install instructions. Haven’t had a chance to try it out yet, as my RV trailer is still at the dealership until spring.



by:

Installation was straightforward. Instructions are very clear and concise. Shipping was prompt and I was able to get updates as needed.



by:
2016 Chevrolet Silverado 2500

Fantastic service - placed the order last Friday and received my B&W goose neck hitch and wiring harness the following Tuesday. As soon as I get it installed I will be ordering the B&W companion fifth wheel hitch to go with it.



by:

Very heavy duty! Built super well directions are easy as can be... I bought this with the companion slider and it is such a tight fit, no wiggle at all



by:

The directions and video were spot on. The B&W is a lot nicer than any other hitch I have ever owned. Very solid and USA made.



by:

Very happy with installation instructions, help from factory installers, and the overall fit of the under-bed hardware.



by:

Thanks to all of the great videos that etrailer puts up my installation was a breeze!!



by:
Ram 3500

Using this with my Chevy 3500 HD. Was easy to install as per the instructions and online video. Works as advertised!



by:

Great help over the phone in what would work best for our needs.
But things shipped much later than I was told at the start. I did over the 4 day delivery and the free was waged but it took about 2 weeks to receive. That is why you only got 4 stars!!!



by:
2016 GMC Sierra 2500

Easy to install and follow installation video in the website. Everything lined up perfectly.



by:

Solid hitch. Took several hours but install was very straightforward. Tows excellent



by:
2016 GMC Sierra 3500

excellent purchasing experience! extremely fast shipping, would definitely recommend etrailer to those who need it!



by:
2018 GMC Sierra 2500

Sturdy exactly as described. Haven’t used it yet but looking forward to the security it appears to provide.



by:

Good solid hitch, pretty easy install by myself took about three hours.



by:

I have delt with you before ,You are Good People to deal with !!!!!



by:
2018 Chevrolet Silverado

Works well on 2018 HD2500 Silverado. Not hard to install for one person



by:
GMC

Excellent quality product and fit for my 2019 GMC truck.



by:

As easy to install as they claim. There fit was perfect and worked flawlessly. I highly recommend it to anybody who is considering the product.



by:

Service was great! Got unit installed in 5hrs, and it fit like a glove.



by:

Very well made hitch. Can't wait to try it out. Everything came quickly with no issues. Great price. Why go anywhere else? Thanks!



by:

Etrailer Expert

Heather A.

3/20/2024

William, I see you had a 2 star experience with the B&W Companion. The Companion is one of our most popular fifth wheel set ups so I am surprised. If you would like to tell me what went wrong, I am happy to help you.



by:

Great price, fast shipping!


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Show More Reviews

See what our Experts say about this B and W 5th Wheel Hitch Rails

  • Recommended Sliding 5th Wheel Hitch for a B&W Turnoverball System
    Welcome back! Since your 2018 GMC Sierra 2500 already has the B&W Turnoverball System item # BWGNRK1016-5W installed, you are going to need the B&W Companion 5th Wheel Trailer Hitch w/ Slider item # BWRVK3400-5W. Without the slider you're not going to be able to make full turns and you're going to run into your trailer. The fixed B&W Companion item # BWRVK3500-5W isn't going to give you enough clearance. To make towing with a 5th wheel easier I recommend adding the Curt 5th Wheel/Gooseneck...
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  • Is B&W Patriot Slider Compatible With Curt X5 5th-Wheel Base Rail Adapter Plate
    The B&W Patriot # BWRVK3270 is not compatible with the Curt # C16220 or any other adapter. Using the Patriot will require installation of the B&W Custom Installation Kit w/ Base Rails for 5th Wheel Trailer Hitches # BWRVK2506. However, this would require removal of your existing gooseneck hitch. The adapter has quite a few restrictions which are as follows: -Will not work with fifth-wheel hitches or pin boxes that rotate. -Will not work with auto-slide fifth-wheel hitches. -Will not...
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  • Removable Fifth Wheel Hitch Recommendation for 2019 Chevy Silverado 2500 Short Bed
    For your 2019 Chevy Silverado 2500 short bed the best solution for a fifth wheel hitch you could easily remove and have a totally empty truck bed would be with a B and W Companion slider like the part # BWRVK3400-5W and then for the rail kit part # BWGNRK1016-5W. Unlike other options that fit your truck bed this would not require a set of fifth wheel rails in the bed of your truck as it installs into a gooseneck hitch ball shank. This also breaks down into smaller sections to allow for...
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  • Fifth Wheel Hitch Recommendation for 2016 Chevy Silverado 3500HD Short Bed without Rail Kit
    For your 2016 Chevy Silverado 3500 short bed without the factory rail kit I would highly recommend the B and W Companion fifth wheel hitch setup as the Companion hitch is regarded by many in the RV community as the nicest fifth wheel hitch around. For that you would want the part # BWRVK3400-5W for the fifth wheel slider hitch and then part # BWGNRK1016-5W for the rail kit. Another really nice benefit to this setup is that when you remove the fifth wheel hitch you also have a gooseneck...
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  • How Do You Know if a 2016 GMC Sierra 3500 Short Bed has the Factory 5th Wheel Prep Package
    If you look in the bed of your 2016 GMC Sierra 3500 and see 4 pucks in a square/rectangular pattern then the truck has the factory towing prep package. It will look similar to the picture I have included. If you have that in your truck bed then you can use a hitch that fits directly such as # C16545-16025. For a short bed model use the B&W Companion slider # BWRVK3770. If the truck does not have the 4 pucks in the bed then you will need an installation kit and a hitch. If you like the...
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  • B&W Companion Hitch Setup for 2016 Silverado 3500 6.5-Foot Bed Without OEM Prep
    The correct under-bed B&W setup for your 2016 Silverado 3500 short bed without OEM prep consists of hitch part # BWRVK3400-5W and under-bed installation rail part # BWGNRK1016-5W which also serves as a gooseneck hitch. The two part numbers you referenced are actually one and the same product, simply coded differently. For a retractable hard tonneau cover for your truck I especially like the Pace Edwards UltraGroove # 311-KRC95A17 because it has tough laminated aluminum construction (not...
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  • Could 2018 Chevy Silverado 2500HD Tow 8,800 lb Reflection Fifth Wheel
    I looked up the towing capacity of your 2018 Chevy Silverado 2500HD and the lowest towing capacity it could have based on options is 13,000 lbs so a 8,800 lb 5th wheel trailer would easily be towable with your truck. Since your truck has a short bed you'd need a slider hitch so that you'd have enough turning clearance to make sharp turns without cab and trailer nose interference. The B and W Companion slider hitch part # BWRVK3400-5W is what I recommend for several reasons. This USA made...
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  • Comparing the B&W Turnoverball Gooseneck Hitch Part # BWGNRK1016 and Part # BWGNRK1016-5W
    There is no difference between the B&W Turnoverball Underbed Gooseneck Trailer Hitch part # BWGNRK1016 and part # BWGNRK1016-5W. They are the exact same hitch but with different parts numbers. This hitch is a confirmed fit for your 2016 GMC Sierra 3500.
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  • Should B&W Companion 5th Wheel Hitch be Cut to Install with Tool Box in 2019 GMC Sierra 2500
    To be blunt you should definitely not alter the installation in any way of the Turnoverball Install Rails # BWGNRK1016-5W or the B&W Companion # BWRVK3400-5W, or the Companion # BWRVK3770 if you have the OEM pucks in your 2019 GMC Sierra 2500 with a 6-1/2 foot bed. There may be one option for you since you mentioned 18 inches wide and that is the UWS Truck Bed Toolbox - 5th Wheel Series Chest # UWS01042 (Bright Aluminum) or # UWS01066 (Gloss Black). This box measures 58" long x 18" wide...
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  • Will The B&W Companion Hitch Fir My Stock Gooseneck Hitch On My 2018 GMC Sierra 2500
    No, the B&W Companion Gooseneck-to-5th-Wheel Trailer Hitch Adapter # BWRVK3500 will not fit your 2018 GMC Sierra 2500 unless you have the Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches # BWGNRK1016-5W. Most gooseneck hitches have the round opening and the B&W Companion needs a square opening. So if you have the round opening it will not work for you. You would have to install the # BWGNRK1016-5W. To be able to use your stock gooseneck hitch, you could look...
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  • Fifth Wheel Hitch with Below Bed Rails for 2016 Chevy Silverado 2500 with 6-1/2 Foot bed
    There is a very high quality option for you to install a fifth-wheel hitch with underbed rails on your 2016 Chevy Silverado 2500 with a 6-1/2 foot bed without the factory rail kit. I recommend the B&W Companion # BWRVK3400-5W, which installs with the Custom Underbed Installation Kit # BWGNRK1016-5W. The rails double as a Turnoverball gooseneck hitch, and the Companion, which has a capacity of 20,000 lbs, features jaws which are 1" thick and provide full 360 degree contact with your king...
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    Image 1 for Image 2 for Image 3 for
  • 5th Wheel And Gooseneck Hitch Option For A 2016 GMC Sierra 2500 With No OEM Pucks
    As long as your truck doesn't have a body lift, meaning the bed is further away from the truck's frame than stock, you should be fine. The B&W Companion 5th Wheel Trailer Hitch w/ Slider # BWRVK3400-5W with the installation kit # BWGNRK1016-5W is exactly what you need. This hitch has a maximum towing capacity of 20,000-lbs, has 3 height setting adjustments to ensure your 5th wheel is as level as possible, and when the 5th wheel is removed, will provide a connection point for a goose ball.
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  • Recommended UnderBed System for a 5th Wheel Hitch on a 2018 Chevy Silverado 3500 Short Bed
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  • Can a 2016 GMC Sierra 2500 Safely Tow a Keystone Montana 3121RL 5th Wheel Trailer
    I took a look at the online version of the owner's manual for your 2016 GMC Sierra 2500 and it looks like the max tongue weight for a 5th wheel trailer is 3,000 lbs and the max Gross Vehicle Weight Rating (GVWR) is 21,000 lbs. With this being the case you can safely tow your Keystone Montana 3221RL but I recommend checking your copy of the owner's manual to verify these weight ratings. Using your pickup to tow will obviously add some strain that will cause premature wear but since you...
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  • Best Underbed Mounting Kit for a 5th Wheel Hitch on a 2018 Chevrolet Silverado 2500
    The best under bed mounting kit they offer for your 2018 Chevrolet Silverado 2500 is the B&W Custom Underbed Installation Kit part # BWGNRK1016-5W which also doubles as a connection point for gooseneck trailers. However, the B&W Custom Underbed Installation Kit can only be used with the B&W Companion 5th Wheel Trailer Hitch w/ Slider part # BWRVK3400-5W or the B&W Companion 5th Wheel Trailer Hitch part # BWRVK3500-5W. If you have a short bed (6-1/2') on your 2018 Chevrolet Silverado 2500...
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  • Can a 2018 Chevy Silverado 2500HD Duramax Safely Tow a 16K 5th Wheel Trailer
    From the info you told me it looks like the max 5th wheel/gooseneck towing capacities for your 2018 Chevy 2500HD is 9,000 lbs for a 3.73 axle ratio or 14,000 lbs for a 4.10 axle ratio. Either way you won't be able to safely tow a 16,000 lb 5th wheel trailer so you'll either need to upgrade your tow vehicle or look into a smaller 5th wheel trailer. Since it sounds like you already have the truck it would obviously be more cost-effective to keep the truck and just look for a smaller trailer....
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  • Difference Between B&W RVB and RVK 3500 5th Wheel Hitch Parts
    The RVB3500 (our part # BWRVB3500) that you referenced is simply the replacement base assembly for the full B&W Companion 5th Wheel Hitch # BWRVK3500. I'm not quite sure what part you are referring to when you listed RVA as I wasn't able to cross-reference it to anything. The Companion 5th Wheel Hitch is an excellent choice for your Silverado and is considered by many to be one of the best hitch's on the market. This is largely due to its overall construction that includes robust 1 inch...
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  • 5th Wheel Sliding Hitch Options For A 2016 Chevrolet Silverado 2500
    As you may already know, any truck bed shorter than 8' requires the use of either a sliding 5th wheel hitch or a Sidewinder king pin box. A sliding 5th wheel hitch is needed for making sharp turns as the trailer can strike the cab of the vehicle if the proper clearance is not made. The slider allows the vehicle to make normal turns during low-speed maneuvering by locking in place between the cab and rear axle. The greater space between the cab and trailer allows for greater turning clearance....
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  • Can Reese Sidewinder RP34FR be Used w/ 2017 GMC Sierra 2500 w/ B&W Turnoverball in Bed
    We have a number of options for you to pull your 5th wheel trailer with your 2017 GMC Sierra 2500 short bed, though there isn't a 5th wheel hitch you can use with the B&W Turnoverball # BWGNRK1016-5W and a Sidewinder. The reason for that is the B&W Companion that fits in the Turnoverball isn't compatible with the Sidewinder, so the only hitch you can add to this is the B&W Companion 5th Wheel Trailer Hitch with Slider # BWRVK3400-5W. If you did want to use the Sidewinder you still could,...
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  • Easily Removable Fifth Wheel Hitch Option for 2018 Chevy Silverado 2500
    I have the perfect option for you. The B&W Companion system consists of their tried-and-true Turnover Ball gooseneck hitch # BWGNRK1016-5W and a sliding fifth wheel hitch # BWRVK3400-5W that uses the gooseneck hitch to install to the vehicle. It's an ingenious set up that will allow your bed to be completely clear once the hitch is removed, and would also allow you to tow both fifth wheel and goosneck trailers if need be. The Companion offers superior ride quality with 1 inch thick jaws...
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  • B&W Slider 5th Wheel Hitch Options for 2016 GMC Sierra 2500 with 6-1/2-Foot Bed
    For your 6-1/2-foot-bed 2016 GMC Sierra 2500 Denali you will need a sliding type 5th wheel hitch to give you enough turning clearance unless the 5th wheel trailer has a Sidewinder or Revolution pivoting pin box such as # RP34FR, for example. If it has a standard fixed pin box the slider is the other way to prevent your trailer overhang from suddenly "making friends" with the back of your truck's cab. You have two options for a B&W slider hitch. B&W makes excellent products and handles...
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  • 2017 GMC Sierra 2500 5th Wheel Hitch Recommendation for a 20K Trailer
    Thanks for reaching out! For your application I recommend using the B&W Companion # BWRVK3400-5W which mounts to your 2017 GMC Sierra 2500 6-1/2' bed with the B&W Gooseneck Hitch # BWGNRK1016-5W. This design gives you a clear truck bed when you aren't towing, doubles as a gooseneck hitch, and is arguably the best 5th wheel setup for short bed trucks on the market. In addition to this hitch system I also recommend adding the Pollak 5th Wheel / Gooseneck T-Connector # PK11893-11932 so it's...
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  • How Do I Convert My Companion Hitch # BWRVK3500-5W to Fit My 2021 Chevy Silverado 2500 with OEM Prep
    In order to convert your Companion Hitch # BWRVK3500-5W From your 2016 GMC Sierra 2500 (8-foot bed without OEM Prep) to your 2021 Chevy Silverado 2500 (8-foot bed with OEM prep), you will need the Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for Chevy/GMC # BWRVB3710. The adapter rails # BWGNRK1016-5W you had to use with your Sierra 2500 will not be used on your Silverado 2500.
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  • Recommended Fifth Wheel Hitch for 2017 Chevrolet Silverado 2500
    The fifth wheel hitch I strongly recommend for your 2017 Chevy Silverado 2500 is the B&W Companion # BWRVK3500-5W. The Companion is considered by many to be the highest-quality fifth wheel hitch available. With well over 350 reviews from customers who have used it, the Companion has gotten a nearly unanimous 5-star rating. It features dual jaws which are a full 1" thick to provide complete contact with your king pin so you can have faith that your connection is completely secure. The...
    view full answer...


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