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  1. Gooseneck and Fifth Wheel Adapters
  2. Reese
  3. Fifth Wheel Trailer to Gooseneck Hitch
  4. Replaces King Pin
  5. King Pin Adapters
  6. Adapts Trailer
Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 and 0719 - 20,000 lbs

Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 and 0719 - 20,000 lbs

Item # RP94720
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Retail:$3,060.73
Our Price: $1,595.35
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Gooseneck and Fifth Wheel Adapters
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Shipping Weight: 195 lbs
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Tow your fifth-wheel trailer with your gooseneck hitch and get the smooth, stable ride that only an air-ride-equipped coupler can deliver. This trailer coupler adapter has a built-in air bag that provides cushion and absorbs road shock. Call 800-298-1624 to order Reese gooseneck and fifth wheel adapters part number RP94720 or order online at etrailer.com. Free expert support on all Reese products. Guaranteed Lowest Price and Fastest Shipping for Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 and 0719 - 20,000 lbs. Gooseneck and Fifth Wheel Adapters reviews from real customers.
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Reese Gooseneck and Fifth Wheel Adapters - RP94720

  • Fifth Wheel Trailer to Gooseneck Hitch
  • Replaces King Pin
  • Reese
  • King Pin Adapters
  • Adapts Trailer

Tow your fifth-wheel trailer with your gooseneck hitch and get the smooth, stable ride that only an air-ride-equipped coupler can deliver. This trailer coupler adapter has a built-in air bag that provides cushion and absorbs road shock.


Features:

  • Air ride coupler lets you tow your 5th-wheel trailer with your gooseneck hitch
    • Goose Box replaces standard pin box on 5th-wheel trailer
    • Endorsed by Lippert Components Inc. - will not affect the warranty on their trailer frames
  • Fully enclosed air bag and dual shock absorbers provide cushion and absorb road shock
    • Improves handling and overall ride
    • Decreases both vertical shock (bounce) and longitudinal shock (chucking)
    • Limits strain on truck and trailer frames
  • Sturdy steel is powder coated for corrosion resistance
  • Pivot tube helps to minimize jarring by allowing fore and aft movement
  • Simple, bolt-on installation
    • Mounting hardware included


Specs:

  • Designed to replace Lippert 1621, 1621HD, and 0719 pin boxes
  • Towing capacity: 20,000 lbs
  • Tongue weight capacity: 4,000 lbs
  • Ball size: 2-5/16"
  • Limited lifetime warranty


Note: Lippert pin box 1716 will work with this goosebox, but a spacer kit (RP61301 - sold separately) is required.


Fifth-Wheel-to-Gooseneck Adapter

This unique coupler lets you tow your fifth-wheel trailer with your gooseneck hitch. It is air ride equipped to ensure that less stress is put on your trailer's frame than is typical with traditional king pin adapters. Simply replace your trailer's existing pin box with the Goose Box and you'll be ready to go.


Eliminate Chucking and Jarring

The Goose Box is designed to absorb road shock for a smooth, stable ride. The internal air bag can be adjusted to give you just the right amount of support, so you will lose the bounce but avoid the stiff, rigid ride that occurs when towing with an overinflated air bag. Also included in the Goose Box are dual shock absorbers, which extend the life of the air bag by ensuring that compression occurs in a controlled fashion.


Cutaway Diagram of Reese Products Goose Box
  1. The air bag can be adjusted to provide a smooth ride for both your truck and trailer. Because it is fully enclosed, it's protected from UV exposure and shielded from road hazards.
  2. Dual shock absorbers help to reduce bounce and relieve stress on your trailer frame.
  3. The integrated pivot tube allows the Goose Box to move fore and aft, minimizing chucking.
  4. The gooseneck coupler attaches to the 2-5/16 inch ball on your gooseneck trailer hitch.



94720 Reese Products GooseBox - Fifth Wheel Trailer to Gooseneck Trailer Hitch Coupler

Replaces Reese 94623

Installation Details RP94720 Installation instructions




Customer Reviews

Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 and 0719 - 20,000 lbs - RP94720

Average Customer Rating:  4.8 out of 5 stars   (200 Customer Reviews)

Tow your fifth-wheel trailer with your gooseneck hitch and get the smooth, stable ride that only an air-ride-equipped coupler can deliver. This trailer coupler adapter has a built-in air bag that provides cushion and absorbs road shock.

- RP94720
by:

Overall a great upgrade, but not perfect. Happy to have gone this way from the previous 5th wheel hitch setup. Pros: * Having nothing in the bed of the truck, except when towing. * There is more room for a larger bed chest without the 5th wheel hitch (replaced a B&W Companion slider). * Air bag system seems less jarring on the frame of the 5th wheel than the B& W Companion / Lippert Rotaflex. * Seems to have reduced further what little "chucking" there was with the Companion/Rota-Flex setup. Cons: * Lining up to hitch is a PITA. Reese should really rethink this. * Towing is not as confidence inspiring. The trailer feels like it wallows in rough undulating turns in comparison to the 5th wheel connection. * Sits much lower than the 5th wheel pin box, so at level RV sites the bottom of the hitch is lower than the truck bed. That affects the length of RV site needed as the truck can't back under the trailer to park. * The pinbox structure requires more room in the bed, limiting what can be placed on the sides & rear of the bed. To help with hitching, I'm going to make a magnetic "sighting" system that can be seen through the rear window. something that can be tossed in the bed chest when not in use. Currently I'm using the bed camera (in the CHMSL) along with a camera that I set on the wheel well, and that is marginal at best. It still takes multiple attempts because of the limited tolerance. Once the bed chest is installed the camera will be pretty ineffective.



- RP94720
by:

IF you have a gooseneck ball and a fifth wheel RV, then this is the perfect match for your rig! The Reese Goosebox changes everything! Easier hook up and unhooking. Smooth ride and easy installation. etrailer has plenty of videos for review and installation, plus you can call them and ask about it if you have any questions. I have had it for a year now and just installed it on its second camper and I would have it any other way! It is exactly what you need!


Comments
Love it!
Jesse H - 05/20/2021


- RP94720
by:

This thing is great! Install was a breeze took about 2 hours to install taking my time and torque. All I did was sat the pin box up on cardboard and wooden blocks, then slid the pin box under the king pin when it was close enough. A buddy and I installed it. Towing is very smooth and nice and easy. No bucking. Everything is great with this gooseneck pin box. I'm extremely happy and I'm even at the camp site right now reviewing this! Thanks etrailer.



- RP94720
by:

Improved ride, no hitch in the box of my truck!



- RP94720
by:

This Goosebox is heavy but I was able to get it installed by myself with help from my wife while tightening the bolt. When UPS freight delivered this, the driver was kind enough to load it directly into my truck so I did not have to lift it up. Using my truck I was able to back it into position where it went in effortlessly. I first took the zirk fitting out so I did not break it. The Goosebox was shored up using 2X4 pieces and then strapped in place, so it was in position while backing it up to the fifth wheel. This is a well made and stout pinbox replacement. The one issue I do have is that the air inflation gauge is very hard to see. Basically it is a black bar inside a black hole. The next time I am hooked up, I intend to put some white or other bright colored paint on the bar for easier viewing. No more lifting the heavy hitch to of the bed to use the truck. As always etrailer is hard to beat, fast shipping, expert advice, great prices.



- RP94720
by:

When I attempted to install this the width was 1/2" smaller than the trailer original. It took me about 15 calls to etrailer, the distributor and back and forth. Finally the distributor gave me the name if the manufacturer. When the women from the manufacturer helping me said, "Let me look at he specs". I knew I had the right person. It was at the limit as far as installing on my trailer. Now that it's installed I love it.


Comments
Great
Albert - 05/06/2022


- RP94720
by:

After dealing with the awkward 5th wheel hitch and pin box for many years on several RV's, I decided to try the Goose Box. Absolutely the very best mod I've done on my 2019 Alpine 5th wheel.


Comments
Great. Best mod Ive made in a long time.
Sandy C - 06/20/2021


- RP94720
by:

I have no issues with etrailer, their service is great. Their front line people are very knowledgeable and give immediate answers your questions. They take your orders Leaving you feeling good with your interaction. My three stars are for their shipping. They ship with Estes and it took 17 days to get my product. etrailer, you can do better with your shipping.


Comments
Thank you for your review. This item was too large for UPS so it needed to ship freight. Freight does take longer in shipping than UPS. Even if you choose an expedited shipping, our team will call you and let you know that it can not ship expedited.
-- Etrailer Expert Sierra K - 05/19/2021

Comments
Great, we truely do enjoy our Goosebox. One import point is remembering to inflate the pin box and grease the locking mechanism. We have had no problems at all. Very well built and easy to use.
Ernie - 04/13/2022


- RP94720
by:

I have completed the installation of the Reese Gooseneck pin Box 20K on my 2019 Columbus 1492 366RL. The installation went well for 2 people. The installation was done as suggested in the instructions, one step below the original fifth wheel hitch. That actually proved to be too high for my 2019 GMC DenaliHD 4x4 DRW so I moved the hitch to the same position as the original equipment and the height works much better. I was able to unbolt and reset the position of the hitch by myself using the truck bed as a "work bench" and raising and lowering the RV to align the holes. Haven't towed it yet but will soon and provide more info. As you can tell by the photos, the safety chain installation was very easy.


Comments
The Reese Gooseneck is awesome. Smoother pull and less bouncing. I recommend anyone with a fifth wheel to convert to a reese gooseneck.
John G - 04/04/2020



- RP94720
by:

Ordered this to replace OEM king pin on my 2019 Solitude 375RES. Due to it being delivered via freight it took a little longer than expected, had to make an appointment to have it delivered, not to big of a deal. The cardboard this comes in is very hefty, as it should be for the weight of the item. As stated by other, there was not any instructions included, easy to find online though. I am not the mechanical type but a little handy with basic tools and it took me about 2.5 hours, this includes taking the old pin box off. Watched a few videos on how people used wood blocks and used the tailgate of the truck to install. I was worried about braking the zerk fitting off so I attached the couple to my goose ball. I than used blocks of wood to shore it up and used the truck and the fifth wheel to line it up. Hooking up is easy. On my test drive I can tell this will handle better, did not have as much chucking as with the fifth wheel hitch. Looking forward to our next camping trip to give it a true test.



- RP94720
by:

Only made one trip so far but could definitely tell a better ride from my B&w companion and a lot easier to have a clean bed. It is harder and slower than the B&w fifth wheel to hook up to and unload but worth it



- RP94720
by:

I had changed from a 2500 to a 3500 DRW that happened to include the GM puck system. I was left with a choice: do I spend hundreds on a puck adapter system to allow my old industry standard rail fifth wheel hitch to work with my new truck? Or do I sell it for as much as I can, and change over to something like the Goosebox? In the end, I was able to sell my old fifth wheel hitch and purchase this Goosebox, and the difference cost about as much as the adapter would have cost. Furthermore, the bed of my truck is now eternally empty and usable without needing to climb in and disassemble a heavy hitch, and I even lost a bit of weight in the bed. Yes, the Goosebox is heavy, but it is certainly not heavIER than a normal pinbox plus the weight of my old hitch. If my guess is right, I probably lost 50-100 lbs. To add to that, once the bag is inflated, the ride is so smooth. It's easily one of the best upgrades I did to my truck and trailer setup. Yes, hooking up is SLIGHTLY more complex than a traditional fifth wheel, but the time difference is minutes at most. Less, once you get used to it, or you have a good spotter to help. I kept the old pin box around, because I will want to keep this setup if I ever change trailers!



- RP94720
by:

Installed on a 18,000 gvwr fifth wheel for use with a 2019 f350 drw. Install straightforward, I did need to shift vertically. I was able to borrow a friends gooseball which helped me pick out the best gooseball in terms of height (I ended up w the desired 7” clearance and the front of my fifth wheel about 1” high). Love the open truck bed and I’ve gotten used to centering the ball (at first I used some white electrical tape on the hitch to help me visually, but now I mostly rely on centering my dually with the fifth wheel sides. Nothing light weight about this unit! I picked up a mini grease gun that I use regularly. I adjust the air pressure to about 40psi, no issues with leaking when we are on the move. Very smooth ride.


Comments
We continue to be pleased with the Reese goosebox. The open truck bed is great to have. We have learned to keep an eye on potential jack knife situations where the goosebox could hit the side of our truck—part of that was learning that with our 39’ 5th wheel, there’s no reason to ever get the goosebox too close to the truck sides, since it’s not necessary to back into sites. Durability, smoothness of ride of the goosebox is as good as day 1.
Robert - 10/05/2021


- RP94720
by:

Four stars due to airbag and terrible location of grease zerk. We've towed nearly 10,000 miles in a year and I would never want to use a Fifth Wheel hitch. We love how we can put our gooseball under the back seat of the truck when we aren't towing. We love the cushioning provided by the suspension and the airbag, but not being able to set the air pressure until after hitching is far from ideal. The grease zerk is in a terrible location that makes it more or less inaccessible once hitched. We've taken to simply putting grease on the gooseball before hitching. It's a good hitch and I'd probably buy it again, though I'd strongly consider the Gen-Y option as it lacks an airbag.



- RP94720
by:

Ive had this on my 40' toy hauler for one year and it has been the best modification I have made to the camper so far. The airbag system works as it should and I like the adjustability with varying pin weights that occur in toy haulers depending on what you carry in the garage. I use my truck for work so not having to deal with the fifth wheel was worth it alone. Besides it also rides better than a standard rigid fifth wheel. The only downside is goosenecks are more difficult to hookup than a fifth wheel but this can be overcome with practice. [Online video] channel has some good info on the 2nd gen goosebox so worth a look if you are thinking of buying one it.



- RP94720
by:

I finally reached the point where I could no longer remove my standard fifth wheel hitch by myself. My only option was to leave my hitch in the bed of my truck for the entire travel season, April to October for us. Not a good thing when I needed my full bed. After hours of research the Goose Box seemed to be my best option. I had put the Box on our previous fifth wheel but didn't tow it much before we traded it for a 2020 Jayco Pinnacle. I had the dealer change the Box over to the new Jayco. It is by far the best towing, best riding and best handling fifth wheel/truck combo we have ever owned, and that has been a few. Our 2020 F350 has the camera system which makes hookup relatively painless. The 5 pound ball is so much easier to remove than a 200 pound hitch. Well worth the money and highly recommend it.



- RP94720
by:

We like the ride and convenience. If you would put that zerk grease fitting somewhere else it would be good. Broke ours off within the first trip. Also why can’t air stay in the bag?


Comments
To ensure that you are filling your air bag correctly, make sure your jacks are retracted, you are pushing the air valve into a hard stop to allow the system to take air which is approximately 0.25 inches, and you fill until the Goosebox is at its nominal position, as seen in figure 14 in the instructions. It may be helpful to put the tow vehicle in neutral to allow the unit to find its natural position and apply the brake. You can recheck the Air Inflation Indicator and the Goosebox is equipped with an automatic air relief valve to prevent overfilling.
-- Etrailer Expert Sierra K - 01/17/2022


- RP94720
by:

I installed this hitch, in less than 1.5 hours with a little help. hooked up to my truck and pulled my toy hauler. I could not believe the difference. the only complaint is there was only 4 bolt/nut/washer assy. which is legal, and plenty strong. so I used a couple of the old bolts. I did not like the 4 empty holes



- RP94720
by:

Was a little cumbersome to install. But very pleased with hitch. Will be taking the RV out at the end of the month and am hoping it improves the towing experience.



- RP94720
by:

We thought that this would be very hard to install since it is so heavy but it wasn't. Leave it in the back of your truck and let the RV do all the work. We love the fact of the airbags on the coupler. It makes the ride very smooth.



- RP94720
by:

Just what I needed to convert my 5th wheel toy hauler



- RP94720
by:

After one year of use the Goosebox has been a joy to pull with. Initial hookup is a learning curve compared to a traditional 5th wheel hitch but simple and quick after a few trips. Found a bed mounted camera eases the hookup process and love the open space of our truck bed when unhooked!



- RP94720
by:

So for I really like this product. I have taken several long trips with it installed. It takes all the shock between the truck and fifth wheel for a smoother ride. No problems at this time.



- RP94720
by:

We have a 2016 Grand Design Momentum 348M trailer, pulled by a C4500 Topkick with full factory air-ride suspension. This is my experience when I tried to replace the 5th wheel hitch with this Reese Goose Box hitch. The hitch performed OK when it was properly adjusted and there was no load in the toy-hauler section (no UTV inside). But we had to constantly check and re-check the hitch adjustment, or it would "buck" the truck around like a bronco. But when we added a UTV to the rear of the trailer, the hitch acted like a Bumper Pull trailer with ALL the weight behind the axles, and would "fish-tail" something terrible over 50 mph going down hill, and almost impossible to drive anywhere. We checked our hitch weight, and it was approximately 3,500 pounds. We found this unacceptable and impossible to correct or fix. So we bought a solid unarticulated Gooseneak Hitch, and the problems disappeared immediately and have not reappeared. We are VERY disappointed with your Reese Goose Box Gooseneck and Fifth Wheel Adapter hitch. In conclusion, it is my opinion that this hitch is NOT compatible with a factory air-ride suspension. Having been a heavy equipment and truck mechanic, I have never experienced anything like this with either a solid 5th wheel or gooseneak hitched trailer. It would be most helpful if we could return it for a refund, but at this point we are just trying to sell it to someone who does not have air-ride suspension on their tow vehicle.



- RP94720
by:

Received in good order. Easy to install, you do need two people to install . Heavy. one problem, the grease fitting was not installed properly . it came with an insert grease fitting. the whole was a threaded hole . I bought a Grease fitting and screwed it in. Before fixing it I called etrailer and told them about the grease fitting. they said it was a defective unit and they would ship me a new one. problem was I had already installed this one. I was not going to uninstall and reinstall another unit just for a grease fitting. this is why I purchased my own fitting and installed it.


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Ask the Experts about this Reese Gooseneck and Fifth Wheel Adapters



  • Vertical Measurement from Bottom of Gooseneck Coupler to Lowest Bolt Hole on 20k Reese Goose Box
    I reached out to my contact at Reese, and the Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter 20K # RP94720 has a vertical measurement of 19.2 inches from the bottom of the ball connection to the lowest bolt on the pin box. You will want to measure your pin box as well to determine the clearance to that same bolt. You will want to make sure you have 5-6 inches of clearance from the top of your bed rails to the underside of your 5th wheel for turning clearance on hills. If...
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  • How to Select Reese Goosebox Trailer Coupler to Replace OEM Pin Box
    The way to find a correct matching Reese Goosebox pin box for your Cougar 5th wheel trailer is to confirm with pin box part number that is on the trailer now. The pin box number usually appears on the pin box itself (driver's side usually) and will be different than the trailer serial number or VIN. We have Goosebox replacement pin boxes for many OEM pin boxes. For example, for pin boxes 1621, 1621HD, and 0719 use part # RP94720 rated for 20K The linked article will assist.
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  • Available Reese Goosebox Replacement 5th Wheel Pin Box Adapters
    It sounds like you're looking to replace the standard 5th wheel pin box on your 5th wheel with a cushioned Reese Goosebox that will allow towing this 5th wheel trailer with a gooseneck hitch. We can help. On the linked page you can see all models the Reese Goosebox which are designed as direct bolt-on replacements for certain specific popular pin box models. In order to know if we have a compatible model you will need to know the part number of the standard OEM pin box that is on the trailer...
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  • Compatibility of Reese Goose Box for CM Flat Bed with Recessed Gooseneck Hitch Ball
    My contact at Reese says it will work fine in a CM Flatbed with the recessed gooseneck hitch. At 4 inches from the very bottom of the coupler where it connects to the gooseneck hitch ball, the clamp mechanism of the Goose Box # RP94720 (replacement for the RP9463) at its very widest point is just 7-1/2 inches. The Because that clamp mechanism will sit about 1-1/2 inches above the floor of the recessed area, the Goose Box will have more than enough clearance to work just fine in that 14...
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    Image 1 for Image 2 for
  • Recommended Routine Lubrication for Reese Goose Box
    Some amount of noise is to be expected in any towing system, but certainly in a high-weight-capacity 5th wheel towing setup. The psi pressure inside the goose box air spring can be set based on feel, but the 35-40-psi range is an appropriate starting point. You may simply need to do some of the routine lubrication recommended in the (linked) instructions for model # RP94720. This is covered on page 6 and indicates that before each use to grease the pivot shaft and to grease the goose ball....
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  • Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter RP94720 Wont Take Air
    Thank you for your recent purchase of a Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720. Some air chucks - the chuck is the valve on your compressor or other air pump - will have a size/shape that will not be compatible with the inflation valve on your Reese Goose Box. Some chucks have a shape that will prevent close enough contact to fully depress the pin inside the bag's inflation value. This would block air flow. Another less likely possibility is that there...
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  • How to Tow Both Gooseneck and 5th Wheel Trailers with 2015 Ford F-350 with Factory Rail Kit
    There are several ways to go about using your 2015 Ford F-350 short bed with factory rail kit to tow both gooseneck and 5th wheel trailers, but there is only one best way. The best option is to avoid use of hitch adapters that can cause extra trailer frame stress by installing on your 5th wheel a Goose Box replacement pin box that couples directly to a gooseneck hitch ball like # RP94720. Goose Box 5th wheel pin boxes are made in several models that are direct bolt-on replacements for...
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  • 5th Wheel Trailer Frame Stress from Using Gooseneck Adapters
    There are different types of 5th wheel/gooseneck adapters that do introduce different levels of stress in a 5th wheel trailer's frame. Some trailer makers may caution against use of certain types of adapters for this reason. The frame warranty may be voided in some conditions. The linked article on adapters explains the available types and includes information about the one type that adds no additional stress to the trailer frame, the replacement pin box type called a Goose Box, from Reese....
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  • Reese Goosebox Pin Box Replacement for Towing 5th Wheel Trailer with Gooseneck Hitch
    The only type of 5th-wheel-trailer-to-gooseneck-hitch adapter that does NOT add extra stress to the trailer frame (and potentially void the trailer frame warranty) is a replacement Reese Goosebox that bolts on to the 5th wheel trailer in place of the standard king pin. All other types of adapters introduce extra stresses to the trailer frame. All three Reese Goosebox couplers are shown on the linked page. These are direct replacements for specific pin boxes. For example, part # RP94720...
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  • Can Reese Goose Box Fifth Wheel Gooseneck Adapter be Used on Truck with 6-1/2 ft Bed
    If the fifth wheel trailer has a tapered nose it's pretty likely you could use a Goose Box like the part # RP94720 with a short bed truck that is 6-1/2 feet in length. There are a lot of trailers now that have noses that were specifically designed for use with shorter beds. If you can find a trailer with a Lippert frame and a tapered nose for short bed trucks a Goose Box like the part# RP94720 would be a great option. The other option you mentioned of a Sidewinder with a fixed hitch will...
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  • What Is the Difference Between the Reese Goose Box RP94623 and RP94720
    The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part # RP94720 is just simply the updated version of the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part RP94623. The new updated version features an improved airbag design that does not require there to be any pressure in the system to operate, a new schrader valve design to prevent leaks, and a sleeker look overall. The locking cable also has a bit more tension than the previous version which are...
    view full answer...
  • Comparing Reese Goose Box # 94720 and # 94620
    The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part # RP94720 is just simply the updated version of the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part RP94623. The new updated version features an improved airbag design that does not require there to be any pressure in the system to operate, a new schrader valve design to prevent leaks, and a sleeker look overall. The locking cable also has a bit more tension than the previous version which are...
    view full answer...
  • Dimensions of the Reese Goose Box part # RP94720
    I attached a picture that has the dimensions of the Reese Goose Box part # RP94720 that you referenced. The vertical dimension is 19.2 inches and the horizontal dimension is 17.75 inches.
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    Image 1 for
  • OEM 5th Wheel Pin Boxes Compatible with Reese Goose Box RP94720
    Reese 20K Goosebox Air Ride Coupler # RP94720 is a direct bolt on replacement for three specific 5th wheel pin box models, the Lippert 1621, 1621HD and 0719. You'll just want to check the part number on your existing pin box to confirm which it is. If the pin box number is not clear you can send us a photo showing the information sticker so we can identify it or you can contact the trailer manufacturer with the unit's VIN and they can tell what which pin box they installed originally.
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  • How to Figure Out Which Reese Goose Box Fits Fifth Wheel Trailer
    If you check out the sticker or plate on the pin box of your trailer currently there will be a model number listed that will help us identify what pin box you have and then from there pick out the correct Goose Box. If not there is a way you can measure your pin box to determine what you have. I attached a help article that covers this. The two Goose Box part numbers you mentioned both are for the same fit, but the # RP94720 is the updated version of the 94623. Essentially it's a beefed...
    view full answer...
  • Determining Pin Box Model on 2006 Holiday Rambler to Find Correct Reese Goose Box Replacement
    There is a way for you to determine what model pin box you have on your Holiday Rambler Next Level 38CKS but unfortunately I wasn't able to find this information. I even reached out to Holiday Rambler but they were not able to give me any specifics regarding this trailer without the VIN. On your existing pin box there should hopefully be a sticker right on the unit itself that indicates its model. If you can't locate any information on the pin box then you can either take a few measurements...
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  • What Generation is the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler RP94720
    Yes, the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part # RP94720 is the 2nd generation which has an improved airbag design that does not require there to be any pressure in the system to operate, a new schrader valve design to prevent leaks, and a sleeker look overall. The locking cable also has a bit more tension than the previous version which are all complaints they had of the original and were then addressed with the new model.
    view full answer...
  • Correct Reese Goose Box 5th-Wheel-to-Gooseneck Adapter for Lippert 1621 Pin Box
    I reached out to Lippert and was told you have a Lippert 1621 pin box, so the correct Goose Box for your 2019 Grand Design Solitude is the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720, which has a 20,000 lb capacity. Additionally, you will not need to use the spacer kit to install this adapter. I have added a link to a video review for you to check out.
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  • Can Air be Left in Reese Goose Box When Trailer is Stored
    It's perfectly fine to leave air in the bags of the Reese Goose Boxes like the part # RP94720 when storing the trailer. It will not have any effect on the air bags or seals. You'd want to check the air pressure setting before towing like you normally would and inflate/deflate as needed when you take the trailer out of storage.
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  • Will Reese Goose Box # RP94720 Work on Flat Bed with Recessed Gooseneck Ball
    The Reese Goose Box # RP94720 that you referenced should work just fine with the recessed gooseneck ball on your flat bed truck but there are a couple of measurements I recommend taking to verify this. The Goose Box measures 7-1/2 inches at its widest point when taken 4 inches up from the bottom of the coupler (where it actually clamps around the gooseneck ball). You can use this information to make sure the recessed area is large enough to avoid any interference issues with the Goose...
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  • Locating Correct Reese Goose Box for 2010 Heartland Elkridge 5th Wheel Trailer
    The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720 referenced in your question is designed to replace certain model Lippert pin boxes. In order to see if this Reese Goose Box will fit your 2010 Heartland Elkridge 5th Wheel Trailer, you will just need identify the current pin box model on the trailer. This should be located somewhere on the pin box with a sticker or stamped into the unit itself. This Reese Goose Box is designed for the Lippert 1621, 1621HD, and...
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  • Locating Correct Reese Goose Box for Keystone Fuzion 5th Wheel Trailer
    The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720 referenced in your question is designed to replace the pin box on your trailer. In order to find out if this will work on your Keystone Fuzion, you will just need to determine the existing pin box model number. This information should be printed on a sticker or stamped onto the pin box itself. This Reese Goose Box is designed to replace the Lippert 1621, 1621HD, and 0719 pin boxes. If this is what you have on...
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  • 20k Reese Goose Box Recommendation for Trailer with Lippert 1621 Pin Box
    For your trailer that has a Lippert 1621 pin box the correct Reese Goose Box adapter is the # RP94720 which has a 20k capacity. Most flatbeds have a recessed portion where the gooseneck ball resides. It's hard to say for certain but you can measure your setup to get an idea. At 4 inches up from the very bottom where the Goosebox clamps around the gooseneck ball, the clamp mechanism is 7-1/2 inches at its widest point. You can compare that measurement to your setup to see if it would...
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  • Compatibility of Reese Goose Box with B&W Turnoverball Gooseneck Hitch
    The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720 will replace your RV's Pin Box and will work extremely well with any Gooseneck hitch. The B&W Turnoverball is a very high quality gooseneck hitch, so the combination of these two products will give you a very nice and smooth ride with the air ride shock absorption of the Goose Box.
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Info for this part was:

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Employee Lindsey S
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