bing tracking image
  1. Accessories and Parts
  2. B and W
  3. Fifth Wheel Hitch
  4. Legs
  5. Companion
Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for Ram

Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for Ram

Item # BWRVB3600
Our Price: $958.78
You Save: $26.24
Accessories and Parts

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Shipping Weight: 156 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos


Need help with installation?
Locate installers near me
This replacement base fits your B&W Companion fifth-wheel trailer hitch for the Ram 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 BWRVB3600 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 Ram. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (113)
  • Q & A (0)
  • Videos (1)
  • Photos

B and W Accessories and Parts - BWRVB3600

  • Fifth Wheel Hitch
  • Legs
  • B and W
  • Companion

This replacement base fits your B&W Companion fifth-wheel trailer hitch for the Ram 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 (BWRVK3600 - sold separately)
  • Adjustable pivot arms let you mount hitch head (sold separately) to fit your application
    • Move arms fore or aft up to 6" 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: 25,000 lbs
  • Vertical load limit: 6,250 lbs
  • Height setting: 17" - 19"
  • Limited lifetime warranty

RVB3600 B and W Companion OEM Fifth Wheel Trailer Hitch Base - Dodge Ram

California residents: click here

Video of Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for Ram

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

Video Transcript for B and W Fifth Wheel BWRVB3600 Review

Today, we're going to review part number BWRVB3600. This is the replacement base for the B and W Companion Fifth Wheel Hitch for the Ram factory 5th-wheel towing prep package. Now, this replacement base is used with the B and W Companion Fifth Wheel hitch head, which we also sell separately. Its part number BWRVC3006. These two parts combined will make a complete fifth wheel hitch which we also sell separately which is the BWRVK3600. This video review is just going to be on this replacement base. This base uses these adjustable pivot arms. It comes with these two pivot arms, and these pivot arms will let you mount that hitch head that fits your application.

Basically, when you install these pivot arms, you can see they have; one side has a slant and the other side is straight. Basically, these pivot arms can be used in two positions, horizontally this way and also on the other side, and that will get you a total of four horizontal adjustments for improved cab clearance. By using these two pivot arms, it will also . If you notice, it's got two sets of holes here. There is a multitude of holes on the base. You can actually put this in three different height settings also to raise or lower your coupler height, so you can set it either at 17 inches, 18 inches, or 19 inches coupler heights.

You can find the application that best fits your vehicle and hook it up that way. Now, these pivot arms you can see at the very top, they do have the polyurethane bushings. When you do mount these arm one on each side, your hitch head would sit on this and will give a rattle-free ride. Now, install the base into your Ram. It's a very quick simple installation. Basically, these tabs right here will drop into the four receiver pucks that are built into your Ram factory underbed rails, and then you just turn the handles to lock them in place.

Basically, what you'll do to install this is unhook the clip, pull the pin out, move your handle 90 degrees, and that tab will move also. If you do that to all four with them open like that, it will drop right into the pucks that are in your Ram. Once they are all in correctly, you just turn that handle 90 degrees; moves that tab and locks it into place. Then, just take your pin, put it back through, put your clip on. It will lock that handle from moving. Basically, when you're towing, you just hook it up like that, easy installation.

When you're done, pull the pin and clip, release the handle, pull it out; easily removes from your truck and then it will give you full access to your truck bed. Since there is no mounting rails above the bed, you can use your truck for more than just towing. This part is made of a gray powder coat steel, which is corrosion resistant. It comes with all the hardware to install the pivot arms to the base. Now, few specs on it. The gross towing weight capacity is 25,000 pounds, the vertical load limit or pin weight capacity is 6,250 pounds. That should do it for the review on part number BWRVB3600, this is the replacement base for the B and W Companion Fifth Wheel Hitch for the Ram factory 5th-wheel towing prep package. .

Customer Satisfaction Score:

Customer Reviews

Replacement Base for B&W Companion OEM 5th Wheel Trailer Hitch for Ram - BWRVB3600

Average Customer Rating:  4.8 out of 5 stars   (113 Customer Reviews)

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


B&W makes a Great product, my 3rd hitch. Base came in 2 days, undamaged and in perfect condition. I cut my bed mat so as not to interfere with base installation. Installed base in truck, then my 12 year old head unit, from turn over ball companion hitch, fit perfectly. Thanks etrailer! (2022 Ram 2500 4x4 crew short bed)


Bought the B & W BASE unit that fits our RAM pickup OEM puck mounting system. We were able to transfer the upper fifth-wheel portion from our previous B & W hitch. While still spendy, it did save us several hundred dollars over a completely new hitch package. B & W is as good as it gets! etrailer shipped and we received the new base in just a few days time. Surprised to get it this quickly.

Thanks, etrailer continues to be one of my go-to choices.



Excellent! The most secure towing we have ever done. Will recommend etrailer and B&W.


Paula was wonderful person to work with. Ordered hitch base on Wednesday afternoon and was told I should receive it middle of the next week but I would receive shipping instructions. Friday of the same week my heavy hitch arrived at my house. I couldn’t believe it. It had only been two days. Product was in excellent condition. I use etrailer for all my rv ,truck and trailer supplies



Working great no problems with it Another good product from etrailer


The replacement base was easy to order on line, arrived when promised and was at a very fare price. All in all it was a good experience.


This is a heavy duty base. I bought a new 2017 Ram truck and had to update to a base that would work with my new truck. I had a 2012 Ram and B&W Companion OEM fifth-wheel Turnoverball goose-neck hitch. I could still use the upper portion or Assembly Head for my previous base on this new base. This base handles 25,000 lbs. where my older base would handle 20,000 lbs. Much stronger and heavier, but then it locks into place in all four corners where my older base locked to the the turnover ball, instead, with two u-clamps. Had some difficulty installing it, but needed to read the instructions in some more detail and loosen the two bolts on the legs to get the lock pins to fall, exactly, into place and re-tighten the leg bolts, when finished. Like I said, It's heavy. Think the UPS driver told me it weighed 138 lbs. He and I had to wrestle it out of his delivery truck. Last step of installation, I was missing the "Leveling Kit", but the box came damaged from shipping and I am sure it was lost during that process. I got in touch with etrailer and to make a long story short, B&W is sending me a new one... no charge. Angela W. at etrailer was super great to work with. I call that "customer support". I will be back to etrailer for more products, in the future.

Randy P.


Working Great! Only hitch I will ever purchase! Quality!


Great product and great way to protect the surface of your 5th wheel hitch


Wow this thing is stout. Recommend a friend to help get it in the truck.
Thank you Allison K. for your clear and helpful responses.
I already had the head unit and bought a new truck so I needed a new base, I did have to loosen one corner to get it to drop in right in on my 2019 ram 3500 once in it is solid. Easy clear instructions.



After 1 year still happy with this hitch. I havent taken it out since, due to the weight


Heavy duty hitch. Easy to put together. It is heavy fully assembled. Have not towed with it yet but I can't imagine having a problem.


I purchased the 5th wheel base for a 2018 Ram 3500 with the puck mounts. I had a B&W goose neck mount for my previous truck so I planned on using the 5th wheel head of that hitch on the new base. I ordered the Base from etrailer on a Tuesday night (10:30 PM) and had confirmation from their shipping department that the parts shipped on Wednesday at 4:30 AM... If that wasn't impressive enough, ALL of the parts arrived by noon on Friday and without a scratch I might add. I had the entire assembly installed in less than 30 mins by myself. It fit perfectly. I double checked all of the bolts and nuts and everything was properly torqued. This base took the towing capability of my old hitch from 20k to 25k... Thanks etrailer, you guys run a Top-Notched Operation! I have another purchase in mind so Ill be browsing your site...


Makes the hitch easy to install and remove when needed. Don’t have to remove the gooseneck ball. The adjustment took a while to get right.


I was disappointed that the first part came and it was just dumped in my drive way with no box or such. It was scratched up from delivery. The second part came a day later in a box. My husband almost drove over the first delivery. We have purchased Companion hitches in the past and do love them.


Had some shipping issues and you guys and gals have been great getting things resolved. My 2nd hitch was mailed and delivered as promised and camping plans stayed on schedule even though first shipment was lost in the mail. Would recommend and definantely order from y'all again. Appreciate the great customer service. Thanks again!


Great product, but even better service from I was in a bit of a hurry, and eTrailer got my order shipped out same day and the B+W Companion base showed up and worked as advertised.


Shipping was fast. Great product. Hitch sits up higher than the reg companion. I set it on lowest setting 17". I had to raise my pin box on my fifth wheel RV 4 " and it sits perfect now.


Very good manufacturing. A solid piece with a spectacular finish. easy to install.


My experience with e trailer was excellent. From finding what I was looking for, the order process, and the delivery of the product was excellent. I definitely recommend etrailer.


Exactly what I needed when I traded trucks. Very well made


Product and price are spot on! Shipping was spot on and only took three days…to get here. Processing and getting product out was way less than satisfactory! Website showed an estimated delivery date only three days out and showed the part was in stock. After ordering and three days of not seeing a shipment notification I called. I was told the prosaic was in another warehouse and was being transferred to the main warehouse at which time it would then ship out. I needed this hitch for my truck for a trip. Luckily I have a friend with a ram and the same fifth wheel that fits the puck system. They could not tell me when it was going to ship not could they say really anything helpful. Their shipping estimates are not reliable, even if you cal before the order. They will tell you it’s in stock but don’t know what warehouse stuff is in or how long it will to process your order. If you are on a deadline to get your products, go somewhere else and pay more, it will be worth it. If you can wait, for whenever they decide to ship something, save the money and order from them


Fast and courteous service as usual. Thanks Folks!


I already had another companion hitch of an older style. However, I was able to interchange the actual 5th wheel hitch on top of the newer style Companion. The puck system makes it very easy to lock in and not deal with torquing anything down. It's also a very sturdy piece of equipment! was very prompt with delivery and I'll be doing business with them again!



Have to admit, the puck is too heavy. It works like a charm and is a solid piece of equipment, but just too heavy to load without another person, machinery or back strain. Looking for other options because of this!


Haven't put it in yet but looks like everything will fit. We had the Ram hitch and never felt very safe with it. Always pulled with a B&W so we decided to change out the base, we already had the head. Now we have everything we pull hooked to a B&W.


I really love this hitch I got it out of the box and I said right away that this is a beefy hitch when it came it was very well package great but one thing that I would said bad about the packing I didn't get one of the clip or spring that goes on one of the leg. I didn't think that was a issue those since I had one already but if I didn't have one it would have been an issue since I was going to use it shortly after it arrive.

Thank you etrailer you are on your game, this is not the first time I bought from them but their CS is like no other.

George A.


Wow, this hitch is the cat meow of all hitches so after little over a year this is one solid hitch but I also would like to comment on etrailer the one that sold me this hitch it A+++++ company. I have bought a few things from etrailer over the years and man I am very please with them, oh yeah the hitch is great also I would say buy this hitch now you want regret it.


The hitch arrived in great structural condition, but that perfect powder coat paint that B&W applies is scratched in a couple of places. The hitch and components had done a lot of moving around in the shipping container. I would suggest a wood base to hold things in place. The delivery person rolled the box out of the truck; maybe a 'this side up' stamp on the box would help.

Larry B.


The hitch is as solid as the Rock of Gibraltor. Excellent product.


Arrived in two days, I truely love etrailer. They never disappoint. Arrived in a smashed up box but unit was untouched with scratches or dents. Unit is so much lighter then my old companion slider base. Was actyable to lift this one up myself. Took about 20 min to install into the pucks and install the swivel mount for the head.


The B & W Companion is the best 5th Wheel Hitch I have used. I had been using my latest one on my 2020 Ford F-350 Super Duty but just purchased a RAM 3500. The nice thing was I kept the head and just ordered the base from etrailer to fit in my new 2022 RAM 3500. Ford F-350 Base on left and new RAM 3500 base from etrailer on the right with head installed.

Show More Reviews

See what our Experts say about this B and W Accessories and Parts

< Previous
123. . .4

Do you have a question about this Accessories and Part?

Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Jeff D
Installed by:
Jeff D
Employee Adele M
Updated by:
Adele M
Employee Kristina F
Updated by:
Kristina F

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

Product Experts Available Now!
Call 1-800-940-8924