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Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for 2015-2019 Chevy/GMC

Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for 2015-2019 Chevy/GMC

Item # BWRVB3700
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Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for 2015-2019 Chevy/GMC Legs BWRVB3700
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This replacement base fits your B&W Companion fifth-wheel trailer hitch for the 2015-2019 Chevy/GMC factory 5th-wheel towing prep package. Unit sits in the sockets in your truck bed for easy installation and removal. 1-833-496-1390 to order B and W accessories and parts part number BWRVB3700 or order online at Free expert support on all B and W products. Guaranteed Lowest Price and Fastest Shipping for Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for 2015-2019 Chevy/GMC. Accessories and Parts reviews from real customers.
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  • Reviews (56)
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B and W Accessories and Parts - BWRVB3700

  • Fifth Wheel Hitch
  • Legs
  • B and W

This replacement base fits your B&W Companion fifth-wheel trailer hitch for the 2015-2019 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 (BWRVK3700 - sold separately)
  • Application: 2015-2019 Chevy/GMC trucks with factory-installed towing prep package
  • Adjustable pivot arms let you mount hitch head (sold separately) to fit your application
    • Move arms fore or aft 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

RVB3700 B and W Companion OEM Fifth Wheel Trailer Hitch Base - 2015-2019 Chevy/GMC Trucks w/ Factory Tow Prep

California residents: click here

Customer Reviews

Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for 2015-2019 Chevy/GMC - BWRVB3700

Average Customer Rating:  4.9 out of 5 stars   (56 Customer Reviews)

This replacement base fits your B&W Companion fifth-wheel trailer hitch for the 2015-2019 Chevy/GMC factory 5th-wheel towing prep package. Unit sits in the sockets in your truck bed for easy installation and removal.


Customer service was excellent, James was very helpful. B&W hitch was easy to assemble, it’s the only brand I buy.


Great Products


I have not installed B&W hitch yet, but it appears to be exactly what I need to put this hitch in our new 2019 GMC.
I love the B&W hitches, they are reasonably priced, made in USA, comes in two pieces making it easy for older folks to remove from their tow truck and leaves the bed clean to use without rail, etc. in the bed.
I will be happy to submit photos after it is installed.

Great, B&W make the best made quality towing equipment bar none, the best.
Gordon B - 10/06/2020


I can install this base and mount the coupler in 2 minutes. A younger man could do it quicker. B&W builds a great product and etrailer is the only place I shop for my towing needs.


Product has performed impeccably, would highly recommend this product to all Silverado 3500 owners.

As always the customer service at etrailer is above and beyond a 5 star rating. Will keep returning for all future needs - highly recommended.

Product is still performing flawlessly. Will be doing some upgrades soon and etrailer will be my go to place. Thanks again for the outstanding customer service.
Chris M - 07/02/2021


Great hitch I’ve been using the Companion hitch for 2 years. Bought the oem base for GM because the truck I bought has the oem hitch in it


This was one of my best customer satisfaction experiences ever. From working with me on ordering the right hitch, to delivering the hitch (and taking care of an exchange return as well), etrailer was a real pleasure to work with.
The hitch itself is remarkably well designed, installation is straightforward and there's no need to worry about the strength and resilience of the hitch... beyond reproach!


Thanks for a great product. I ordered the part in early May but it was held up due ethe virus. I made a call to Etrailer to check on it in early June. It was delivered to my door within a few days. Good fit and we’re ready to ride.

Works perfectly. Thanks
Paul - 06/24/2021


Exactly what I needed! Quality product, works perfectly, no stress when towing. Would recommend 100%


Works perfect and easy to remove.


As advertised. Good quality product and goes together easily. Needed the factory puck base for the head and it works good in my 18 Silverado.


Product was as advertised. Delivery was spot on. Pricing was amazing. Thank you Etrailer for the great service.


This is a great product, I bought it for my 2018 GMC 2500HD with the factory puck system. It is very simple to put together and is easy to use. I use it to pull my 40' 5th wheel camper and it works well, very rigid unit once it's locked into the pucks which provides a nice smooth towing experience without any jerking. I kept my 5th wheel hitch off of my original Companion setup and it hooked right up without any issues, I highly recommend this hitch.


Great price and quick delivery. Box was a little worse for the wear, could have been damaged in delivery. But, all parts were there.

No problems.
Jim A - 06/04/2021


Love it. Bought a new pickup, but didn't want to have to buy a whole B&W Companion setup. The new pickup has the puck system from the factory. Was able to get just a new base from e-trailer and works perfectly with old fifth wheel hitch top, great company to work with.


The B&W BWRV3700 Hitch base is a perfect fit for my 2017 Chevy 3500 HD diesel pickup. delivery was fast, good installation instructions made for an easy and fast installation. I have never been disappointed in any of the B&W products that I have purchased over the last 15 years. The customer service provided by etrailer is great, they are always eager to help.
Thanks etrailer


Bought this Companion Base for my 2019 GMC 3500HD to replace the base on my BWRVK3500 I used in my 2015 Ford F350. I love B&W hitches and the fact that the hitches heads are interchangeable between bases. Dena was very knowledgeable and helpful making this transaction effortless. Delivery was quick and as promised.


I had to replace my truck. I then needed to replace my older 3000 series American made BW 5th wheel hitch. After talking with BW I learned I could just buy the RVB3700 base I needed and reuse my older 3000 series coupler.

Armed with the BW part number I headed over to my favorite and first choice online vendor, As I had expected had the part I needed. The part was easy to find, easy to order, promptly shipped and well packaged.

I unboxed the hitch and followed the enclosed clearly explained RVB3700 base assembly instructions. The Silverado/Sierra BW RVB3700 puck model was a perfect fit for my truck. My older 3000 series BW Companion 5th wheel coupler fit the new BW RVB3700 base like a glove. I look forward to many more years and miles of towing my 5th wheel trailer.


Thought i was gonna have to buy a whole new 5th wheel hitch after i traded trucks. My older truck has the companion hitch that fit into the goose neck connection. My new truck has the GM puck system. I was able to buy just the base and use my upper part of the hitch. Saved me about 5-600 bucks. Thanks etrailer!


There are not words to express how pleased I am with this unit. Right out of the box, 10 minutes to put on support arms, move to position in truck bed and it’s locked down. Ready to set the latch system on and go camping. Great engineering and precision construction. Could not be more pleased. I have been pulling with B&W turn over and Companion hitches for 15+ years. My hitch has been in 4 trucks now. DO NOT CHANGE B&W! Pictures to follow soon. Raining now. Want to show product in sunlight.


I love my companion 5th wheel hitch. Bought a new truck and the baseplate fits perfectly. I have been using etrailer for years, great prices, fast shipping, excellent customer service I would recommend etrailer


Product as described works great fits right into the OEM attachment I thought I was going to have to buy a whole new hitch I was able to use the top part of the original companion I had purchased a year before with the B&W hitch gooseball


It is just what I expected, Excellent!, this is the second I have bought because I changed trucks, everybody I talk to I refer
B&W hitches Excellent quality and American made.


I understand that its the busy time of year, the hitch I ordered was just one day late, which turned out to be okay.
If you noticed, I ordered the replacement base asy, not David. I guess that his name auto populated when I used his address, great brand at a great price.


The product was as I expected. I have a B&W Companion hitch for a 2011 Silvrado. I bought a new base for the B&W Companion to fit my 2019 Silverado. Installation was straight forward and took about an hour.

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Info for this part was:

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Jameson C
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