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  1. RV and Camper Hitch
  2. Ultra-Fab Products
  3. Frame Mount Hitch
  4. 47 - 77 Inch Wide Frame
  5. Weld-On
  6. 350 lbs TW
Ultra-Fab 2" Trailer Hitch Receiver for Trailer Frames

Ultra-Fab 2" Trailer Hitch Receiver for Trailer Frames

Item # UF35-946403
Our Price: $284.05
You Save: $148.06
RV and Camper Hitch
Shipping Weight: 54 lbs
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Use this receiver to carry a bike rack or cargo carrier on the back of your trailer. Do not use for towing. Unit welds onto I-beam, C-channel or rectangular fifth-wheel trailer frames. Great Prices for the best rv and camper hitch from Ultra-Fab Products. Ultra-Fab 2" Trailer Hitch Receiver for Trailer Frames part number UF35-946403 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (86)
  • Q & A (0)
  • Videos (1)
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Ultra-Fab Products RV and Camper Hitch - UF35-946403

  • Frame Mount Hitch
  • 47 - 77 Inch Wide Frame
  • Weld-On
  • 350 lbs TW
  • 2 Inch Hitch
  • Ultra-Fab Products

Use this receiver to carry a bike rack or cargo carrier on the back of your trailer. Do not use for towing. Unit welds onto I-beam, C-channel or rectangular fifth-wheel trailer frames.


  • Provides 2" x 2" trailer hitch receiver opening at the rear of your trailer
    • Perfect for mounting a bike rack, cargo carrier or other hitch accessory
    • Do not use for towing
  • Welds onto I-beam, C-channel or rectangular trailer frames
    • Gusset may be required to weld onto I-beam frames
    • Plate may be required to weld onto a C-channel frame
  • Constructed of heavy-duty, powder coated steel


  • 350-lb Maximum tongue weight capacity
  • Adjustable width: 47-1/8" to 77"
  • 1-Year warranty

35-946403 UltraFab Accessory Adapter for 5th Wheel Trailers

Installation Details UF35-946403 Installation instructions

Video of Ultra-Fab 2" Trailer Hitch Receiver for Trailer Frames

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

Video Transcript for Ultra-Fab Products RV and Camper Hitch - Frame Mount Hitch - UF35-946403 Review

Speaker 1: Today we're taking a look at the Ultra Fab 2" Trailer Hitch Receiver for trailer frames. This unit provides a 2" by 2" trailer hitch receiver opening at the rear of your trailer or RV. This is perfect for mounting the bike rack, cargo carrier or other hitch accessory. Please keep in mind that this is not to be used for towing applications.It welds onto I-beam, C-channel or rectangular trailer frames. Also keep in mind that a gusset may be required to weld onto I-beam frames. And a plate may be required to weld onto a C-channel frame.

Its constructed of heavy-duty, powder coated steel. Does a great job at resisting rust and corrosion. Features a 3500-lb weight load capacity and a 350-lb maximum tongue weight capacity. You always wanna be careful not to exceed the RV frame rating provided by the manufacturer. And one of the neat features about this unit is that it's adjustable.So it has these arms right here that can slide out.

It's able to adjust anywhere from 47-1/8" all the way out to 77". And it is a weld on installation. So these arms extend out. Really nice design. Same construction and same finishing as the main hitch.

And then it comes with some hardware here, and those are set bolts. So on the back side, once you have the arms extended where they need to be, you thread in the bolt here to kinda lock that arm into position. And again, it's a weld on installation designed to be welded onto the RV or trailer frame.Again, adjustable from 47-1/8" to 77". Right here you have a 2" by 2" opening. This will accept a standard 5/8" diameter hitch pin or hitch lock.

And then you have safety chain loops right here that provide a suitable point for securing any accessory that you might have if it has an accessory strap or a tie down strap or a cable or chain. That's what these are used for. Overall really nice design. And that's gonna do it for today's look at the Ultra Fab 2" Trailer Hitch Receiver for trailer frames.

Customer Satisfaction Score:

Customer Reviews

Ultra-Fab 2" Trailer Hitch Receiver for Trailer Frames - UF35-946403

Average Customer Rating:  4.8 out of 5 stars   (86 Customer Reviews)

Use this receiver to carry a bike rack or cargo carrier on the back of your trailer. Do not use for towing. Unit welds onto I-beam, C-channel or rectangular fifth-wheel trailer frames.


Had it installed on back of fifth wheel and it has held up very good carrying 2 70 lb electric bikes.
Much better than the bike rack attached to it has not handled the load as well. W
I would recommend tHis hitch!


We needed to add a bike rack to our Cougar 28sgs fifth wheel and felt the fifth wheel bumper would not be strong enough to support carrying bikes. We purchased this hitch and turned it upside down so it rested on top of the fifth wheel bumper and welded it to the frame of the fifth wheel for support. The hitch was a perfect width to reach the frame of the fifth wheel.

Marsha Z.


Great very sturdy and well made


Great experience!! The ad was clear with helpful pics and was accurate. The order shipped in one day and delivered within three working days. It is more heavy duty than I anticipated which is great. Workmanship looks excellent. I will have to hire a welder to attach it but it should be simple and work well. Exactly what I needed to be able to transport my ebikes on the back of my travel trailer when I go camping. I will keep this company on my recommendation list.


I purchased this hitch receiver so that I could attach a bike rack to the back of my camper. It was easy to assemble, adjust and install with the help of a friend who is a welder. It does add weight to the back of the trailer and load needs to be adjusted to reduce trailer sway in my case.


Prompt delivery. Product is much more heavily made than expecting considering it’s not recommended for towing. Quality material and construction. I plan to mount it upside down to keep adequate ground clearance on the back end of my pop up camper.


I dont know how to weld, so I had my shop at work do it for me. Our welder had it done like like 40 minutes!

The build quality on this hitch receiver is top notch. It is very heavy, sturdy and well built. I have complete faith in the hitch itself. I plan to use a Lets Go Aero BikeWing T4 bike rack and one of my bikes is a $5000 bike, so I needed to make sure whatever I got would be sturdy and well built.


Installed this hitch along with a heavey 1/4" x 4'' steel rear costom bumper and attached them both to the frame and welded both together to make it even stronger to pull just about anything. Another trailer or a car dolly or cargo hauler.


Very heavy duty hitch. Easy to fit in between the frame of the Rv with the adjustable arms.


I can't rate this yet because the middle section was missing. Box had large holes torn and UPS tried to cover them with cardboard box and tape. Melissa gets 100 stars for helping me. Hopefully all the parts will make it here.


This is an excellent product. It was much stronger and better made than I anticipated. I had a certified welder come to my house and weld this hitch to my E-Pro trailer. I can now mount my bicycle rack to carry my two e-bikes safely while travelling. Recommended product.


Packaging had me very worried, because it was taped and repaired like it been through a war on both inside and outside boxes. I would have given 5 stars otherwise. Seems like a good quality hitch and fit my application. Thank you for finding a nice product for me!

Matthew W.


Still going strong after a year! Great hitch


Purchased the product and had it shipped to a courier pickup location. Packaging was a little beat up but no damage. Had the product installed on a 2018 36 ft fifth wheel. The product needs to be welded onto the frame and my installers had no issue with doing this. They did weld the adjustable sleeves together instead of using the bolt to tighten them together. Also had the receiver part of the hitch welded to the trailer bumper for extra support. Product is well made and the paint has held up well with no visible rust after over one year of use. Remember to paint over the weld areas. etrailer purchase was no issue and delivered on time.



Product is still holding up with no issues after one year.


I needed a trailer hitch for the rear of my 5th wheel toy hauler. I found this company on-line and after reading some really positive reviews I ordered one. The website was very easy to use, especially for a computer challenged user. E-mails came quickly that my order was placed and then shipped. The package arrived quickly. First thing I noticed was box was kind of, well not falling apart but kind of. Extra tape was used on both ends. When I lifted it I realized why, this thing was HEAVY! After cutting the box open and inspection I was really impressed. The paint looked good. I inspected the welds and they looked very good, very NICELY done. I will be taking my 5th wheel and this hitch to a local trailer shop for install. Overall I am very impressed with the on-line ordering, the hitch exceeded my expectation. I will be towing a small open trailer with my Side by Side on it.



Yes it’s been a year since I bought this hitch. I had it welded on the rear of my toy hauler. The shop I used made quick work of it, a job well done. It only cost $100.00 . That is as far as I’ve gotten with it. I am modifying a trailer to haul my RZR and don’t have it done yet so I have not pulled anything with it.


UF35-946403 ultra-fab weld on hitch install pics


Did the job perfectly!


Works great for what I purchased for, hauling pedal bikes. Was able to mount upside down so receiver goes over rear bumper, keeping hitch higher.


Well built hitch!


Bought this hitch to install on my toy hauler, worked out great. Had a mobile welder come to my rv site and install it, it allowed me to use the bike rack that I bought from etrailer.


This is my 2nd Ultra-Fab Trailer Hitch I have ordered and installed from
etrailer. There is a reason for that, it is a great product! I have never been
disappointed from any etrailer product. The service is next to none at etrailer!
The Ultra-Fab Hitch is very well made, with quality craftsmanship. I would
not hesitate to order again. (If I have to! Dang Hail Storms in Wyoming!)


Received the Ultra-Fab 2" Trailer Hitch Receiver for 5th Wheel Trailer Frame as promised. Installation was simple. Once positioned, clamped it and started welding. Centered the receiver and tightened the bolts then added a spot weld for backup.


Excellent product. Very tough, straight and true. Had it welded up onto my 5th wheel by a trailer welding shop for about $110. I use it for a bike rack only but an equipment rack would work also.


Excellent product! The item was out of stock but communication with ET was on great. They notified me of when the unit would be available and when it was shipped and delivered as well. It was in good condition other than being a bit scuffed up by the shipping company. It fit my 31' 5R just fine and the welder took only an hour to install it. Very sturdy product! It'll work perfectly for my bikes and would likely work just fine for a Moped as well. One word of caution; you will likely have to purchase an extension (mine is 8") for the receiver if you have a fiberglass body. It makes the bikes wobble a lot more so you'll have to use tie-down straps (a good idea anyway). Very happy with this.


We have received the package, which was in very good condition. I have recently had knee replacement surgery and have not had a chance to have the hitch installed.

Harry R.


Very well. It fit perfect and works great. Thank you.


As always Etrailer has come thru. I ordered this part from another vendor cancelled it because of delay and ordered from Etrailer and received it a day early. Thanks Lori

PS. Now my bike rack, my trucks 5th wheel hitch and my rv receiver hitch is thanks to Etrailer and my credit card. Etrailer is the most professional organization I have ever done business with.


I had this welded to my 40’ fifth wheel and using a Kuat bike carrier I hauled 4 large frame mountain bikes over 20 thousand miles and across the worst roads the US interstate system has to offer. It worked perfect.

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