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

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

Item # BWGNRK1257-5W
Our Price: $599.00
Fifth Wheel Installation Kit

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Shipping Weight: 86 lbs
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B and W Custom - BWGNRK1257-5W
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Install the 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 fifth wheel installation kit part number BWGNRK1257-5W 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. Fifth Wheel Installation Kit reviews from real customers.
  • All Info
  • Reviews (2)
  • Q & A (0)
  • Photos

B and W Fifth Wheel Installation Kit - BWGNRK1257-5W

  • Below the Bed
  • B and W
  • Custom

Install the 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)
  • 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
    • Adapter post included
  • 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.



GNRM1257 B and W Turn Over Ball Under-Bed Rail Kit

GNRC1256 B and W Turn Over Ball Center Section

RVP3521 B and W Companion Adapter

Installation Details BWGNRK1257-5W Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches - BWGNRK1257-5W

Average Customer Rating:  5.0 out of 5 stars   (2 Customer Reviews)

Install the 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:

I needed a Gooseneck ball for my 2008 Tundra. Called etrailer as they are usually my go-to place for things like this. Sure enough the Agent steered me to the B&W Gooseneck installation kit that would fit my Tundra..... and the price was right w/free shipping.
Fast forward 1 year and I am still very happy with my purchase from etrailer.



by:
2021 Toyota Tundra


2
2

See what our Experts say about this B and W Fifth Wheel Installation Kit

  • Which Air Bags Are Compatible with a B&W Gooseneck Underbed Installation Kit on 2019 Toyota Tundra
    When installing the Firestone Ride Rite # F2445 with the B&W # BWGNRK1257-5W you won't actually be leaving any bolt holes empty. I've attached an exploded diagram from Firestone that shows the air supply bolt actually has a nut/washer that will fit over the hollow bolt and secure boht the B&W Gooseneck underbed package and the Firestone Ride Rite air bags to the vehicle's frame. This has been confirmed with my tech contact over at B&W and they mentioned that they've had several customers...
    view full answer...
    Image 1 for
  • B&W Companion 5th Wheel Hitch Fit in 2014 Toyota Tundra Long Bed
    There is indeed a special socket post needed for your 2014 Toyota Tundra with an 8 foot bed in order to use the Companion. However, that socket post is included with the following install kit, which fits your Tundra: - Turnoverball Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches # BWGNRK1257-5W If you purchased this exact kit from us, you do have the socket post already; if you purchased just the gooseneck, you will need to contact B&W for the socket post...
    view full answer...
  • Fifth Wheel Hitch Recommendation for 2018 Toyota Tundra Long Bed
    For your 2018 Toyota Tundra long bed the fifth wheel hitch I recommend is the B and W Companion hitch part # BWRVK3500. This hitch is considered by nearly all RVers to be the gold standard of fifth wheel hitches because of how well it's made, how long it lasts, and how well it holds the king pin of the trailer it's attached to. To install this hitch requires the underbed rail kit from B and W part # BWGNRK1257-5W. What's also great about this rail kit is that it doubles as a gooseneck...
    view full answer...
    Image 1 for
  • B&W 5th Wheel Hitch Comparison and Installation for a 2021 Toyota Tundra
    I have attached a review video for the B&W Patriot 5th Wheel Trailer Hitch # BWRVK3255 which also shows the installation process. The B&W Patriot 5th Wheel Trailer Hitch # BWRVK3255 has an 18,000 lb. weight capacity and will fit industry standard rails like the B&W 5th Wheel Installation Kit with Spacers for Toyota Tundra # BWRVR3204-00. The B&W Companion 5th Wheel Trailer Hitch # BWRVK3500-5W has a 20,000 lb. capacity and needs a specific set of rails which are the Custom Underbed Installation...
    view full answer...
  • Suspension Enhancement for 2010 Toyota Tundra that Allows B and W Companion Hitch to Install
    The Air Lift kit part # AL88299 you have installed in your 2010 Toyota Tundra is not compatible with any fifth wheel or gooseneck hitch brackets. To install the B and W Companion part # BWRVK3500-5W with the rail kit part # BWGNRK1257-5W will require you remove the Air Lift and go with a Timbren suspension setup like part # TTORTUN4 as it would not interfere.
    view full answer...
  • 5th Wheel Hitch Options for a 2013 Toyota Tundra with an 8 Bed
    The best 5th wheel hitch option that we have for your 2013 Toyota Tundra with an 8' bed comes from B&W. If you install their Gooseneck Hitch # BWGNRK1257-5W you not only have the option of towing a gooseneck trailer, but you can also utilize the Companion # BWRVK3500-5W. This has a 20K weight capacity and sits directly in the gooseneck receiver so that when you remove it you have a clear bed. The head is easily removed to help make removing the hitch an easier task. All of the B&W products...
    view full answer...
  • Turnoverball Installation Kit for a 2018 Toyota Tundra
    In order to use your B&W Companion on your 2018 Toyota Tundra, you would need the Custom Turnoverball installation kit # BWGNRK1257-5W. I've added a link to a video review of this product for you to take a look at.
    view full answer...

Do you have a question about this Fifth Wheel Installation Kit?


Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Noah M
Updated by:
Noah M
Employee Chris R
Video by:
Chris R
Employee Jonathan Y
Video by:
Jonathan Y
Employee Brent H
Test Fit:
Brent H
Employee Shane H
Test Fit:
Shane H
Employee David F
Test Fit:
David F

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