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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 # BW46FR
Our Price: $599.00
Fifth Wheel Installation Kit

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Shipping Weight: 104 lbs
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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 BW46FR 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 - BW46FR

  • 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.


Galvanic Corrosion Limiting Tape

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).



GNRK1222 B and W Turn Over Ball Gooseneck Trailer Hitch

GNRM1222 B and W Turn Over Ball Under-Bed Rail Kit

GNRC1252 B and W Turn Over Ball Center Section

Installation Details BW46FR Installation instructions

This Product Fits The Following Vehicles




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

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Maintaining Your Gooseneck Hitch and Ball

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

  • Recommended 5th Wheel Rails for a 2022 Toyota Tundra
    Yes, there is one adapter that will allow you to install a set of industry standard rails to use your Andersen Ultimate Rail Mount Hitch. It is the Curt X5 5th Wheel Base Rails Adapter item # 16310. This adapter is confirmed to work with your Anderson Hitch. It has a 20,000 lbs capacity. In order to use this adapter you will need to install the Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches item # BW46FR. This underbed gooseneck platform is custom fit and...
    view full answer...
  • 5th Wheel Trailer Hitch For A 2022 Toyota Tundra With A 6.5 Foot Bed
    I have just the perfect fifth wheel hitch for your 2022 Toyota Tundra! There is two parts that you will need to install the hitch into the bed of your truck first you will need The Installation Rail Kit # BW46FR and The B&W Fifth Wheel Hitch # BWRVK3400-5W. The Rails have a powder coated steel which is sturdy and corrosion resistant. The rails install easily using the existing holes in your vehicle's frame. The B&W Companion 5th Wheel Trailer Hitch w/ Slider # BWRVK3400-5W will help...
    view full answer...
  • How to Get Industry Standard 5th Wheel Base Rails on a 2022 Toyota Tundra
    To get some standard base rails in the bed of your 2022 Toyota Tundra you need to install the B&W gooseneck hitch and use the Demco adapter rails: - B&W Custom Underbed Installation Kit # BW46FR - Demco 5th Wheel Base Rails Adapter # DM6140 This gives you the rails that the Andersen Ultimate Connection # AM3200 will fit to so you can use it with your Tundra.
    view full answer...
  • 5th Wheel Hitch and Suspension Upgrade for a 2022 Toyota Tundra
    I would be happy to help you set your 2022 Toyota Tundra up for towing. Let me start out by confirming the weight on those parts. The Curt X5 5th Wheel Base Rails Adapter item # 16310 weighs 105 lbs. The Custom Underbed Installation Kit item # BW46FR weighs 104 lbs. Toyota really puts you in a box when it comes to options for towing a 5th wheel trailer. You are correct you can not add the Turnover ball system and air bags. There are other suspension options like the Timbren Active...
    view full answer...
  • Which B&W Companion 5th Wheel Hitch For 2024 Toyota Tundra
    Hi Cory, There is a B&W Companion 5th wheel hitch that will work with your 2024 Toyota Tundra with a composite bed, though it is a different part number than the one you asked about, as that one is for Chevy/GMC trucks with a puck system. Instead, you'll need the mounting rails (which even doubles as a gooseneck hitch), and either a fixed or sliding Companion. You'll need the fixed hitch if you have an 8 foot bed, and the sliding hitch if you have a short bed. The correct parts to add...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Joshua S
Video by:
Joshua S
Employee Dustin K
Video Edited:
Dustin K
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Updated by:
Michael B
Employee Ryan G
Installed by:
Ryan G
Employee Justice A
Written by:
Justice A

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