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Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for Chevy/GMC - 20,000 lbs

Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for Chevy/GMC - 20,000 lbs

Item # BWRVB3710
Our Price: $700.00
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Shipping Weight: 82 lbs
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This replacement base fits your B&W Companion fifth-wheel trailer hitch for the Chevy/GMC factory 5th-wheel towing prep package. Unit sits in the sockets in your truck bed for easy installation and removal. 1-800-940-8924 to order B and W accessories and parts part number BWRVB3710 or order online at Free expert support on all B and W products. Great prices and Fastest Shipping for Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for Chevy/GMC - 20,000 lbs. Accessories and Parts reviews from real customers.
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  • Reviews (112)
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B and W Accessories and Parts - BWRVB3710

  • Fifth Wheel Hitch
  • Legs
  • B and W

This replacement base fits your B&W Companion fifth-wheel trailer hitch for the Chevy/GMC factory 5th-wheel towing prep package. Unit sits in the sockets in your truck bed for easy installation and removal.


  • Replacement base fits B&W Companion OEM fifth-wheel trailer hitch (BWRVK3710- sold separately)
  • Adjustable pivot arms let you mount hitch head (sold separately) to fit your application
    • Move arms fore or aft up to 2" for improved cab clearance
    • Raise or lower with 3 height settings
  • Polyurethane bushings on pivot arms offer a rattle-free ride
  • Quick, simple installation
    • Drops into the 4 receiver pucks that are built into your factory underbed rails
  • Gray powder coated steel is corrosion resistant
  • Made in the USA


  • Gross towing weight: 20,000 lbs
  • Tongue Weight: 5,000 lbs
  • Height setting: 16-3/4" - 18-3/4"
  • Limited lifetime warranty

RVB3710 Replacement Base for B and W Companion OEM 5th Wheel Trailer Hitch for Chevy/GMC - 20,000 lbs

Installation Details BWRVB3710 Installation instructions

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for Chevy/GMC - 20,000 lbs - BWRVB3710

Average Customer Rating:  4.9 out of 5 stars   (112 Customer Reviews)

This replacement base fits your B&W Companion fifth-wheel trailer hitch for the Chevy/GMC factory 5th-wheel towing prep package. Unit sits in the sockets in your truck bed for easy installation and removal.


B&W hitches are excellent products. Unfortunately what I received from etrailer was damaged. The box had been used several times & retaped. The base was scratched & several bolts & brackets apparently were lost through a hole in the box when shipped. I have a current need, so don't have time to return it so will have to live with the scratches. Fortunately there was no structural damage. See attached photos.

Customer Service will be reaching out to you.
-- Etrailer Expert Sierra K - 05/04/2022


Like all B&W products, this is top quality. I upgraded my truck and the newer model had a different puck system. Purchasing this base allowed me to save around $[XX] over buying a whole new hitch assembly. With the previous truck and B&W Companion hitch, I logged 15-20K pulling my 5er with no issues whatsoever. I'm a big fan.


I changed trucks from 2019 to 2020 and of course the older hitch would not work in the new truck because puck system was relocated. I ordered a new B&W base from etrailer, it arrived as expected, fit was great, everything works. We appreciate the quick service and support.
Thank you

After using the B&W hitch for a year now, we’re especially satisfied with the quality and workmanship of this device. Knowing the service of this hitch I expect it will out last the truck. Happy Camper’s are we and no worries while towing. Thank you for a great product. P.S. I also bought a new B&W trailer hitch for towing the boat.
William F - 10/13/2022


B&W is the only 5th wheel hitch!

One year later - Still the BEST!
Emmett - 10/12/2022


Relatively easy setup. Quick install. Great hooking up the 5th wheel and towing with this hitch.


The product arrived as promised. My only issue was with the way it was packaged. It came in a BW labeled box, so my assumption is that etrailer did not package it. The box was not suitable for shipping that heavy of an item. The item was not damaged of course because it is made of heavy gauge metal. Aside from the condition of the box when the package arrived, everything was great and it performs as advertised.


I had a little problem with UPS on the shipping with my first hitch. E trailer was very accommodating on getting a second base sent out. It arrived today in perfect condition. Thanks etrailer.


Quick Service, excellent customer service, and impressive followup. Many Thanks


Received the hitch replacement base this morning. Just got it installed. Absolutely perfect fit and function. The old saddle fit perfectly on the new base. I recently traded our 2015 Denali HD 2500 for a 2020 Denali HD 3500. A very special shout out to Korren in customer service for helping me get exactly what I needed. BTW; the free shipping was super fast! Thanks etrailer. You have a very satisfied loyal new customer!


Stabilizer kit missing but no issues my old B&W hitch had the part I just swap the head stabilizer. Service was great fast and a great experience thank Y’all for being so pleasant and helpful. I will recommend y’all to all my friends.

I will have our Customer Service team reach out to you.
-- Etrailer Expert Jenny N - 03/30/2022


I called and asked for information and Diana was wonderful and knowledgeable. I got my order even though we are not at my home address and we were able to get it at the campground we are staying at. Diana kept in touch with me even after the delivery to make sure I had recived it. Top knotch.


Packaged arrived earlier than expected. All in a single box. Instructions are clear and assembly takes only a matter of about 10 minutes. Would highly recommend to anyone in the market for a Fifth Wheel setup for a GM prep package.


Fast shipping and as usual excellent quality from B&W


We received the new base unit and are excited to get it installed and hit the road. We were notified the shipment of the part was delayed and thought we would no receive it until Jan. 11th, however it arrived Dec. 21. Can’t wait to get it installed and hit the road. We were kept abreast of the shipping changes. Will definitely use again if needed and will most definitely recommend to friends!

Our 5th wheel hitch is working GREAT! We’ve have pulled our 42 ft 5th wheel over 6,000 miles. In the Arizona heat, through the ice and snow in Texas on Feb of 2020. This hitch held tight and secure.
Yvonne - 12/26/2021


I was so happy etrailer had this bc saved me money. It arrived as expected and just in time to save me from stress of finding/borrowing one that fits new GMC puck system. I appreciate George for helping make sure part fit n for ensuring shipping would deliver product as scheduled.


First unit was damaged during shipping. I experienced a first class service from etrailer in getting the damaged unit returned and a new one in a timely manor. Not my first time dealing with them and definitely will use them in the near future! Fist rate company and this is coming from someone that usually doesn’t leave reviews. Definitely five stars!!


It was easy to install and works great. It will be used to pull 5th wheel Keystone.


Order arrived quickly, this why I continue to buy from etrailer. The package was pretty ruff but considering there was a hitch inside it is to be expected. There was one missing retainer clip however.

Will continue to buy from etrailer they are one of the best.


Happy with the speed that the unit was shipped, same day. The companion base was delivered in good shape and fairly easy to install.


Hitch fit perfect, had to adjust pucks, head fit great, and looks good I haven't pulled with it yet. Product was delivered quick and as described


This replacement base was to upgrade my existing B&W 5th wheel hitch for a new 2022 GMC 2500HD vehicle that have the 4 mounting holes sockets factory installed. As advertised, I was able to re-use the top portion of my Older Companion hitch (6 years old) which sits on top of this base and interfaces with the 5th wheel trailer pin box. This replacement base is a less expensive solution to buying a completely new hitch. Even though the packing box was a little beat up through shipping, everything came on time un damaged. Installed in under an hour.


excellent product perfect fit


Everything from B&W is excellent. This new baseplate has a smaller footprint than previous ones so might require a little tighter adjustment on the pucks than before.


Great service delivery was in 5 days it was great

Its been great I like how easy it is to hitch up and unlock from trailer even on uneven ground its easy to unlock. also like the way the fifth wheel absorbs the trailer weight and bumps
Glen - 07/18/2022


Best RV 5th wheel hitch for security and peace of mind. Great price and customer service from etrailer.

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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Edited by:
Lindsey S
Employee Kathleen M
Installed by:
Kathleen M
Employee Dustin K
Video by:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Written by:
Kristina F
Employee Bradley B
Test Fit:
Bradley B

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