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Ultra-Fab 2" Motor Home Trailer Hitch Receiver for 4" x 4" Bumpers

Ultra-Fab 2" Motor Home Trailer Hitch Receiver for 4" x 4" Bumpers

Our Price: $55.76
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RV and Camper Hitch
Shipping Weight: 8 lbs
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Bolt this receiver to the top of your RV's bumper to create a 2" x 2" receiver opening for bike racks and cargo carriers. Includes anti-rattle bolts for accessory receiver. Great Prices for the best rv and camper hitch from Ultra-Fab Products. Ultra-Fab 2" Motor Home Trailer Hitch Receiver for 4" x 4" Bumpers part number UF35-946401 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (391)
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Ultra-Fab Products RV and Camper Hitch

  • Bumper Mount Hitch
  • 4 x 4 Inch Bumper
  • Bolt-On
  • 100 lbs TW
  • 2 Inch Hitch
  • Ultra-Fab Products

Bolt this receiver to the top of your RV's bumper to create a 2" x 2" receiver opening for bike racks and cargo carriers. Includes anti-rattle bolts for accessory receiver.


  • Supplies a receiver opening at the rear of your motor home for hitch-mounted accessories like bike racks and cargo carriers
    • Do not use for towing
  • Bolts to the top of your RV's bumper
    • Zinc-plated hardware included
  • Sturdy steel construction
  • Includes anti-rattle bolts for accessory receiver


  • Application: 4" x 4" RV bumper
  • Receiver opening: 2" x 2"
  • Plate measures 6" x 5"
  • Bolt pattern: 5" on center x 4" on center
  • Weight capacity: 100 lbs
    • Do not exceed weight rating of your bumper
  • 1-Year warranty


  • For use with hitch-mounted, RV-approved accessories only. Not rated for towing.
  • Not for use on decorative aluminum bumper covers.

35-946401 UltraFab RV Bumper Receiver Adapter

Item # UF35-946401

Installation Details UF35-946401 Installation instructions

Customer Satisfaction Score:

Customer Reviews

Ultra-Fab 2" Motor Home Trailer Hitch Receiver for 4" x 4" Bumpers - UF35-946401

Average Customer Rating:  4.7 out of 5 stars   (391 Customer Reviews)

Bolt this receiver to the top of your RV's bumper to create a 2" x 2" receiver opening for bike racks and cargo carriers. Includes anti-rattle bolts for accessory receiver.


I ultimately had to return this item outside of the return window, but UltraFab exchanged the product with no problems. Currently using it on my rear bumper with a license plate frame holder.


I ordered and received two of these hitch receivers and installed them on the rear bumper of my camper to carry my 150 cc scooter. Shipping was great and parts mounted without any problem. All hardware was included and fits perfect. Have purchased other items from etrailer previously and look forward to additional items in the future. This company is great to deal with.

Mark H.


Did you end up having any problem with the weight of the scooter breaking the bolts..? I am buying 2 to do something similar...making a carrier for my generator and plan on using 2 hitches...



No problems at all. Used it several times already and works great. I mounted them at the frame extensions.


Has held up well on camper to hold bike rack and a carrier.


It works great I put a bike rack on it and it is fine .


I’m using this receiver a little differently than it’s intended purpose. After getting some longer bolts and drilling holes in some aluminum angle stock, I mounted it to the tongue of our trailer. Now I have a place to store the head of our weight distribution hitch when it’s not on the truck. I just slide it into this receiver and it’s up, out of the way instead of taking up room in a storage compartment or sitting on the ground. I have a locking hitch pin I can use for added security. A simple and cheap fix.


Fits great on the 4" bumper on our motorhome. Seems very sturdy and should work great for our 2 bike rack, without interfering with the trailer hitch.
I'd probably give it 5 stars, just haven't gotten to use it yet.


I looked at several options for attaching a bike rack to my camper and this was what I wanted. I looked at several similar items on Another online retailer that had complaints about the receiver falling off because of faulty welds. I am quite certain that this product won’t come apart, in fact, you could probably pick the whole camper up by it. It is built like a tank, and is incredibly easy to install. It was more expensive than the junk on Another online retailer, but I won’t be worrying about my bikes falling off going down the road


Ise this item on my travel trailer to keep my hitch out of the way,off the ground. Love it to store it so I don’t kick it on the ground.


I placed my order and had my part within a week. Now we can take our bikes with us wherever we go. Just moved the spare tire over and bolted the reciever right on. Thanks guys.


This product was very easy to install and will be perfect for holding our bike rack. Very heavy duty for the price, excellent quality.


Works great for our bike rack.

by: 10/04/2022

well built wouldn't work in my application would work good on square tube applications in my opinion


This was the product I needed to store an accessory from my truck on my fifth wheel camper bumper while not in use. I actually mounted this "vertical" to store my motorcycle carrier "out of the way". I could see mounting this normally to carry light weight accessories while trailering my fifth wheel.



After a year, product is still what I wanted and doing what I needed. Actually moved to a new fifth wheel in December and brought this forward to the new camper. Very handy!


I've used this to attach an aluminum basket as well as a bicycle carrier. It works perfectly


I got this product our RV rear bumper to put a bike rack forour two bicycles and I'm very happy with the hitch receiver it is well made and great item that I needed to carry our bike.I highly recommend this hitch receiver.

Tony M.


Great just what I wanted and needed, it was a easy installation and Im very happy with the results, thank you again for this great product I strongly recommend this product.


I received this product and immediatley installed on my camper bumper, while installing I found two of the 4 lock nut would not screw on to the "U" bolts provided. I then found two of the same size nuts in my toolbox and completed the install. After inserting the bike carrier one of the "U" bolts broke off, It looks as if the "U" bolts are made of a cheap material.I had to purchase a "U" bolt from the local hardware store to replace the broken one. I don't know if I would recommend this to anyonebecause of the faulty "U" bolt.



After replacing the cheap U bolts with new ones, so far the product is work well.


Thank you
Received my bracket on time,
great quality, easy to install, exactly what I was looking for.
Recommend this bracket to any RV person wanting to transport bicycles. Receiver is perfect for my Yakima bike rack...



Its Great! Thank you....


Exactly what I ordered and on time. E trailer is where I go to get stuff for my camper.


This product was perfect to attach to my hard shell trailer for our bike rack.
etrailer did a great job from the ordering process to delivery. Thanks for having a great process set-up to buy from you!

Jim O.


Your product has worked out very well, the metal gauge thickness is very strong!


Overall pretty good. four stars because I added jam nuts to the anti-wobble screws.


Attached easily to the back of my camper and my bike rack slipped right into the receiver. Overall, a good buy that met my needs.

Frank W.




I was driving back home after our
vacation and utilizing the bike rack, along with the hitch receiver, and adapter bars. 1/2 way through Nebraska, a Mustang pulled up while i was driving and yelled, "do you have a bike rack?" I said yes, and he yelled it had fallen off!

This was on interstate 80 going 70 mph. I pulled over, and the rack was gone. So we drove to the next exit and back tracked. I was just hoping nobody was hurt. About 7 miles back, we saw the bikes on the side of the road still attached to the rack. We went to the next exit, turned around, came back and gathered the bikes and real with the help of a state trooper. After looking at the rack, i could see it was still attached to the receiver i purchased, but the u bolts had snapped. 4 damaged bikes due to defective u bolts.



Very happy with the product we purchased for our RV. It fit perfect, and now we can transport our bicycles when we go camping! Now we don't have to take up space inside the RV or the back of the truck!! See attached photos.


They worked great for adding a platform and toolbox onto the back of my travel trailer. I know I couldn't have fabricated and added the hardware for the price!

Rich Z.


Been a year and lots of miles with bumps and potholes but the brackets have remained tight and working like they should. Thanks


I use this trailer hitch receiver to mount my bike carrier on the bumper of my travel trailer. I carry up to four bicycles and this hitch performs beautifully. It is heavy duty and easy to install.

Show More Reviews

See what our Experts say about this Ultra-Fab Products RV and Camper Hitch

  • Will the Ultra-Fab 2" Motor Home Trailer Hitch Receiver Work for Motorhome Tire Carrier
    The Ultra-Fab 2" Motor Home Trailer Hitch Receiver for 4" x 4" Bumpers part # UF35-946401 has a 200 lb weight capacity so as long as the weight of the spare tire carrier and spare wheel/tire do not exceed this you will be good. That said, you also need to take the bumper's weight capacity into consideration and abide by the lowest rated component. There isn't any reason you couldn't use this for a motorhome wheel/tire so long as you be mindful of your capacity.
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  • Why Cant the Bumper Mounted Hitch Recevier UF35-946401 Be Installed on Decorative Bumper Cover
    The Ultra-Fab 2 Inch Motor Home Trailer Hitch Receiver # UF35-946401 is not designed for use on decorative aluminum bumper covers because the installation of the receiver and the weight of the accessory used in the receiver would likely damage the decorative aluminum cover. When the bumper cover becomes damaged, the receiver would no longer be installed securely enough on the bumper and could move while a hitch accessory is being used.
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  • Will the Ultra-Fab Motor Home Trailer Hitch Receiver in the Pictures Be the Same as What is Shipped
    Yes, what you see in the pictures for the Ultra-Fab 2" Motor Home Trailer Hitch Receiver # UF35-946401 is what will ship. There was a redesign of this product, some of the photos you are seeing in reviews may be of the previous model. We do our absolute best to keep our product photos up to date with the correct product model. It is important to note that when you use a hitch extender you will be cutting your tongue weight capacity by 50%. While Ultra-Fab may not be as well known to some,...
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  • Receiver Size of Ultra-Fab 2-Inch Bumper Mount Hitch # UF35-946401
    The Ultra-Fab 2-Inch Bumper Mount Hitch, part # UF35-946401, is only available with a 2-inch receiver opening. All of the RV bumper mount hitches will have a 2-inch size receiver opening. Trailer hitch receiver sizes are available in three different sizes, 1-1/4 inch, 2-inch, and 2-1/2 inch. The two most common sizes would be the Class I and Class II 1-1/4 inch, and the Class III and Class IV 2-inch. The Class V 2-1/2 inch size is used on heavy-duty trucks. I am including a link to a...
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  • Trailer Hitch for 1995 Chevy G20 Van
    There is a hitch receiver that could work for your 1995 Chevy G20 van, so long as your van does NOT have a step bumper. If so, I recommend the Draw-Tite # 75121 hitch, this is a 2" hitch that is a complete bolt-on installation so there will be no drilling required in your Chevy's frame. I have added a link to a video of this hitch being installed on a '94 van for you to check out so you can see the process involved.
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  • Installing Ultra-Fab # UF35-946401 Bumper Mounted Receiver on 2 x 2 Pipe Bumper on RV
    When you describe a 'pipe bumper' do you mean that its round, or is constructed of square tube? If it's a round pipe, I wouldn't recommend attaching a receiver to the bumper as any tongue weight (downward force applied to the receiver) would rotate the receiver tube downward. If you're talking square tube, the Ultra-Fab # UF35-946401 wouldn't be your best option as the threaded portion is about 1-3/4 of an inch long. It wouldn't cinch tight enough, plus the spacing between the legs of...
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  • Alternate Mounting of Ultra-Fab 2" Motor Home Trailer Hitch Receiver
    I contacted the Tech Rep at Ultra Fab Products, they stated that it can be mounted underneath but they do recommend it on top. The Ultra-Fab 2" Motor Home Trailer Hitch Receiver, # UF35-946401 is designed, tested and weight rated for an installation of weight setting above the bumper not below. Any alternate installation of product is determined by the purchaser with that understanding. They added that if you are going to be installing a bike rack on the hitch, be sure to pay very close...
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  • Mounting Ultra Fab # UF35-946401 Under Bumper
    It is acceptable to mount the Ultra Fab # UF35-946401 underneath the bumper. Make sure the 200 lb capacity of the receiver or the capacity of the bumper (whichever is lower) is not exceeded. This receiver is meant to mount to a 4 inch Steel RV bumpers, and not to a car or truck. It is not intended to be used for towing purposes.
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  • Recommended Frame Mounted Trailer Hitch For A 73" Frame Width On A Springdale Summerland 2600
    The only hitch we currently carry that would fit a 73" frame width is the Ultra-Fab 2" Trailer Hitch Receiver for Trailer Frames Item # UF35-946403. It is a weld on and has a tongue weight capacity of 350lbs. It is not rated for towing. I do not recommend using any bumper-mounted hitch receivers like the Ultra-Fab 2" Motor Home Trailer Hitch Receiver for 4" x 4" BumpersItem # UF35-946401 you linked to unless you know the weight capacity of the bumper.
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  • Bumper Mounted Hitch Recommendation for a 2017 Starcraft Satellite 17RB Travel Trailer
    As long as the 4 inch square bumper on your 2017 Starcraft Satellite 17RB travel trailer is made of steel and welded its entire length then you would need hitch # UF35-946402 because it is the model for 4x4 inch bumpers. I have linked a video of this hitch for you. The combined weight of your carrier and the tote tank isn't very much but you will still want to check the trailer literature to make sure that the bumper is rated for carrying weight and. if so, the amount of weight it can handle.
    view full answer...
  • Can Curt Hitch 13703 Fit Keystone Passport SL 229 RK
    I looked up pictures of your Keystone passport SL 229RK and it looks like as long as the frame runs all the way to the back of the camper (it should) the Curt hitch # 13703 would fit and work great as it can install on standard RV frame styles that are between 22 and 72 inches.
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  • Rear Bumper Hitch Solution for 4 inch Bumper with Limited Clearance Above Bumper
    Due to the limited clearance you have above your rear bumper you'd need to install a bumper hitch that hangs below the rear bumper like the Buyers Products # 3371804060 as the # UF35-946401 needs to install above the rear bumper.
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  • Receiver Hitch Needed For Hauling Bikes On A 2018 Minnie Winnie Travel Trailer
    You would need to check with the manufacturer to ensure your bumper is rated to hold anything. Most bumpers are not reinforced to handle the weight of a bike rack and bikes so you'll most likely need to install a new receiver hitch to be able to haul your bikes. To determine the correct fitting hitch for your 2018 Minnie Winnie you'll need to measure from the inside of your trailer frame beam to the inside of the other frame beam. The Adjustable Width Trailer Hitch Receiver for RVs, 22"...
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  • Curt 13703 Hitch Dimensions from Frame Bracket to Hitch Opening
    I attached two pictures that detail where the hitch tube and opening are in relation to the bracket for you to check out. Hitch manufacturers basically refuse to get into the specifics of the hitch extender capacity reduction for fear of people assuming they can carry more than they should based on hypothetical math problems. Hitch extenders though are even more hard on hitches when installed at the back of an RV because trailers have much rougher ride qualities than vehicles. I really...
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    Image 1 for Image 2 for
  • Recommended Trailer Hitch for a 2011 Heartland Greystone 29MK
    I recommend going with the Curt Adjustable Width Trailer Hitch # 13703 for your 2011 Heartland Greystone 29MK. Trailer hitches for 5th wheel/travel trailers don't have specific fits but this is the most likely to fit as it is compatible with trailer frames that are 22" - 72" wide. This trailer hitch has a tongue weight rating of 350 lbs so you do need to keep that in mind (as well as any weight restrictions for your 5th wheel) when loading up a cargo carrier.
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    Image 1 for
  • Trailer Hitch Recommendation for Prowler Fifth Wheel
    Best solution we'd have is the Curt Multi Fit hitch part # 13703 which fits frame widths between 22 and 72 inches apart (outside to outside) and fits all frame styles. Only issue is this is a Class III hitch and we don't have any Class IV or V hitches available that are similar. This has a capacity of 3,500 lbs trailer weight. I attached an install video for more info for you to check out as well.
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  • Installation of a Ultra-Fab 2-Inch RV Trailer Hitch Receiver Part UF35-946401 on a 4-Inch Bumper
    You are correct. The Ultra-Fab 2-inch motor home trailer hitch receiver # UF35-946401 is designed to bolt around a 4-inch RV bumper and the receiver opening will be on the topside of the bumper. This receiver is designed for mounting accessories like a bike rack, and not for towing purposes. It has a 200 pound capacity. Make sure you do not exceed the weight rating of your RV bumper. So if the bumper has a lower weight rating, you will want to go by the lower weight rating.
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  • Bumper Hitch that Can Fit Bumper of 2011 JayFeather That's 4.5 inch by 1.5 inch
    The best solution we have is going to be the Ultra Fab hitch part # UF35-946401 which is designed to attach to a bumper that is 4.5 inches tall and 4 inches wide. Since your bumper is narrower you'd need to come up with spacers to take up the additional width. I attached an install video for this for you to check out as well.
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    Image 1 for
  • Hitch Availability for Rear of 2010 Carriage Carri-Lite 5th Wheel Trailer
    I was able to find many photos of your 2010 Carriage Carri-Lite 5th wheel trailer, but I was not able to confirm the specs for its bumper or frame width. We offer two types of trailer hitch for use on the back of an RV such as your 5th wheel, a bumper-mount type like the Ultra-Fab 2-Inch Motor Home Trailer Hitch # UF35-946401 (see linked video) as well as a frame-mount multi-fit receiver such as # UF35-946403, both rated for use with accessories, not towing. All options can be seen on the...
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  • Will Ultra-Fab Motor Home Trailer Hitch # UF35-946401 Fit a 2008 Chrysler Aspen
    The Ultra-Fab Motor Home 2-Inch Trailer Hitch, part # UF35-946401, is intended for installation on the rear of motor homes that have an exposed 4-inch bumper. Installation requires that the bumper be fully open in order to allow the U-bolts to attach securely. This hitch is not suitable for use on your 2008 Chrysler Aspen. The bumper on your vehicle is designed to protect the passengers in the event of an impact. Even if you removed part of the bumper cover to expose the bumper itself,...
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  • Can the U-Bolts On the Ultra-Fab Motor Home Trailer Hitch Receiver Be Turned
    The Ultra-Fab 2" Motor Home Trailer Hitch Receiver part # UF35-946401 has a bolt hole spacing of 5" front to back and 4" side to side so it does not sound like it would work for you. However, we do have the Stromberg Carlson 2" Motor Home Hitch Receiver part # BA-100 which has a bolt hole spacing of 5" front to back and 5" side to side so it does sound like it would work for you although I am not quite sure of the intended purpose.
    view full answer...
  • Hitch Receiver Size of Ultra-Fab 2-Inch Bumper Mount Hitch # UF35-946401
    The Ultra-Fab 2-Inch Bumper Mount Hitch, part # UF35-946401, is only available with a 2-inch receiver opening. All of the RV bumper mount hitches we carry have a 2-inch size receiver opening. We have the Brophy Hitch Reducer, part # HT02, that will reduce a 2-inch hitch to a 1-1/4 inch size, because it is a sleeve design it will not reduce the tongue weight capacity. Since you did not mention what you will be doing with the bumper mount hitch, I cannot for sure recommend the # HT02 hitch...
    view full answer...
  • Rear Hitch Receiver For 2020 Heartland RV Pioneer Travel Trailer.
    I like your style, golf carts make everything better, let me show you what we have below: **Adjustable Width Trailer Hitch Receiver for RVs, 22" to 72" Wide # 13703. *4-Pole Hardwire Kit with Circuit Tester # 18252. The adjustable width hitch receiver for RV's is going to be the way to go, it is completely adjustable and customizable to fit your set up. Just need to trim to fit and you can weld or bolt it in place for a solid fit. You will also need a connection for the trailer. Use...
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  • RV Bumper Hitch Recommendation that Can Mount Below Bumper
    I have a solution for you, but the RV Bumper 2" Trailer Hitch Receiver # S64025 that you referenced can only be used with the hitch opening on top of the bumper. Instead you would want the Ultra-Fab 2" Motor Home Trailer Hitch # UF35-946401. This hitch can be used with the opening on the bottom of the bumper. Be sure not to exceed the weight capacity of your bumper, check the owners manual of your vehicle for more info on that.
    view full answer...

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