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  1. Fifth Wheel Installation Kit
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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 # BWGNRK1057-5W
Our Price: $599.00
Fifth Wheel Installation Kit

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Shipping Weight: 101 lbs
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B and W Below the Bed Fifth Wheel Installation Kit - BWGNRK1057-5W
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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 fifth wheel installation kit part number BWGNRK1057-5W 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.
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B and W Fifth Wheel Installation Kit - BWGNRK1057-5W

  • Below the Bed
  • B and W
  • Custom

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).



GNRM1057 B and W Turn Over Ball Under-Bed Rail Kit

GNRC959 B and W Turn Over Ball Center Section

Installation Details BWGNRK1057-5W Installation instructions

This Product Fits The Following Vehicles



California residents: click here


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

  • Recommended Suspension Enhancement And Fifth Wheel Hitch For A 2018 GMC Sierra 1500 With MagneRide
    Because of your 2018 GMC Sierra 1500's MagneRide suspension you won't be able to install air bags to enhance your suspension but you will be able to use the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS2611 you were looking at. The RAS adjusts to your load to level your ride. This system also increases stability, handling, and control by improving traction and reducing sway. This system is customizable to your vehicle. During installation, the tension setting of the coil...
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  • Recommended Underbed Rail System for 5th Wheel Hitch on 2017 Chevy Silverado 1500 Elite Series
    There is not a Reese Underbed rail system available for your 2017 Chevy Silverado 1500. If you want an underbed rail system for a clean bed when not towing a 5th wheel trailer, I recommend the Underbed Rail and Installation Kit for Demco Hijacker UMS 5th Wheel and Gooseneck Trailer Hitches # DM8551008 which is compatible with the Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Underbed - 18,000 lbs # DM8550022 or 21,000 lbs # DM8550037. If you prefer a manual...
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  • Sliding 5th Wheel Hitches With Underbed Rails Compatible With 2016 and 2017 Chevy And Ram Short Beds
    There are definitely options for underbed rails on 2016 and 2017 Chevy and Dodge short bed trucks. For the Chevy 6-1/2 foot bed, I recommend the Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches # BWGNRK1057-5W along with the B&W Companion 5th Wheel Trailer Hitch w/ Slider - Dual Jaw - 20,000 lbs # BWRVK3400-5W. This system allows you to use a 5th wheel hitch or a gooseneck hitch and will give you a clean bed when not in use. Another option is to use the Underbed...
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  • Turning Clearance with B&W Companion 5th Wheel Hitch on 2015 Chevy Silverado 1500 5.5' Bed
    In order to determine clearance with the B&W Companion 5th Wheel Trailer Hitch with Slider part # BWRVK3400-5W and Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches part # BWGNRK1057-5W on a 2015 Chevrolet Silverado 1500 you'll need to measure using the formula attached below. In order to use this formula you'll need to know where the hitch ball hole will be, if you measure forward into the bed 44-1/8" from the edge (closest to tailgate) that will provide you...
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  • Will B&W Companion 5th Wheel Trailer Hitch with Slider Work on 2015 Chevy Silverado 1500 5.5' Bed
    Yes, the B&W Companion 5th Wheel Trailer Hitch with Slider part # BWRVK3400-5W will fit your 2015 Chevrolet Silverado 1500 using the Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches part # BWGNRK1057-5W. Please note, this setup might not allow you to make full ninety degree turns so it will be important to measure beforehand if this is a concern to you. I also recommend the Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector part # C56000 to complete...
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  • Can B&W Companion be Used to 5th Wheel Tow with 15 Chevy Silervado 1500 with 5-1/2 Bed
    The Custom Underbed Installation Kit # BWGNRK1057-5W will fit your 2015 Chevy Silverado 1500 with the 5-1/2' bed and while you can technically use the Companion Slider # BWRVK3400-5W, it (and any other standard slider hitch) will not provide enough turning clearance for your trailer and 5th wheel trailer. Since you have a 5-1/2' bed you need something that will give you at least 22" of turning clearance and we do have a few options for you. The first option is to use the Demco 13K Autoslider...
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  • Recommendation for Goose Neck and 5th Wheel Hitches for 2014 Chevrolet Silverado 1500
    For your 2014 Chevrolet Silverado 1500 with the 6-1/2-foot bed there is a perfect solution to allow you to tow both goose neck and 5th wheel trailers. The ideal solution for your application is the B&W system. B&W designed their goose neck/5th wheel system so that the under-bed 5th wheel installation kit doubles as the goose neck hitch. This system consists of parts # BWRVK3400-5W and # BWGNRK1057-5W. Please note the 5th wheel hitch cannot be used with Sidewinder or Revolution pin boxes...
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Do you have a question about this Fifth Wheel Installation Kit?


Info for this part was:

Employee Joe V
Test Fit:
Joe V
Employee Shane H
Test Fit:
Shane H
Employee Ryan G
Test Fit:
Ryan G
Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
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Jacob T
Employee Andrew L
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Andrew L
Employee Dustin K
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Dustin K
Employee Chris R
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Chris R
Employee Wilson B
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Employee Kristina F
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Employee Michael B
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