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

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Retail:$2,943.01
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Gooseneck and Fifth Wheel Adapters
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Shipping Weight: 195 lbs
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RP94720 - Replaces King Pin Reese Gooseneck and Fifth Wheel Adapters
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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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  • Reviews (156)
  • Q & A (521)
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Reese Gooseneck and Fifth Wheel Adapters

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

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
  • Pivot tube helps to minimize jarring by allowing fore and aft movement
  • Simple, bolt-on installation
    • Mounting hardware included
  • Sturdy steel is powder coated for corrosion resistance


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 ensure that compression of the air bag occurs in a controlled fashion. This extends the life of the air bag.


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

Item # RP94720

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   (156 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:

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 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:

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:

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:

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:

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:

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:

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:

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:

The Reese Goosebox was simple to install and arrived in timely manner. I won't know until later next week how it tows. This is my second purchase from etrailer and they did not dissappoint.



- RP94720
by:

I installed the reese 20k goosebox yesterday by myself except for a small amount of help from my wife. Install was easy. Haven't had time to try it out yet.



- RP94720
by:

I have a flat bed f-450. It is a hydra-bed. I worked with etrailer, Lippert and Reese. They all gave good advice and made certain this would work. It did, it's done and I'm towing. This is not my first purchase from etrailer. Always good service.



- RP94720
by:

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



- RP94720
by:

This thing is a beast! Makes it so much easier and the ride quality is amazing. Much better than a 5th wheel. I added a AirLift compressor with a wireless remote to my RV to pump up and deflate the airbag without the need for a compressor.



- 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


- 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:

Satisfied with product. Did not come with instructions, but found them online. Installed on 36' Vortex with the Lippert #1716. I realize this is made to fit as many applications as possible, but I wish the connection was tall enough to utilize all the OEM mounting holes. The center two holes on each side are begging to be drilled through and bolted. OEM is 12 bolts vs 8. Could be 18, overkill I'm sure, but would make me happy. More hassle to hook up, but worth it, with no hitch in your bed when you unhook.



- 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.



- RP94720
by:

Fantastic option for a fifth wheel hitch. Best upgrade I ever made!!!!



- RP94720
by:

One of the best purchases I have ever made when it comes to towing a fifth wheel.



- 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.



- RP94720
by:

The product itself is exactly what I expected. Was a chore to install by myself but got it done. I honestly expected a more competitive price from etrailer. Was a little disappointed with the slow shipping but over all…



- RP94720
by:

Does not repeat not work with 60gallon rds 6-5 bed it will bend your tank in a tight bind you have to run the bds 4 inch ball adaptor like the one in the pic



- RP94720
by:

Installation went well and can't wait to give it a tug ! Great customer service and fast delivery. Installed on our 15 Montana 3750FL.



- RP94720
by:

As always, etrailer made this purchase simple and seamless. The price was competitive, and shipping was on schedule. This is my second GooseBox....I had such great comments about it to the buyer of my fifth wheel, he paid me extra for me to leave it attached. Therefore, I had to purchase another 20k Goosebox for my newest toy. It will change the feel of your tow.


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Ask the Experts about this Reese Gooseneck and Fifth Wheel Adapters

  • Can 20K Reese Goose Box Replace Lippert 1116 Pin Box on for 2020 Montana 3120RL
    Yes, the 20K Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720 can replace your Lippert 1116 pin box when the Spacer Kit # RP61301 is used as well.
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  • Reese Goose Box Bedrail Clearance Compatibility for Stock 2019 RAM 3500 HD Dually
    The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 and 0719 - 20,000 lbs # RP94720 is a direct replacement for the Lippert 1621 HD pin box you have. This adapter will give you the bed rail clearance needed for your 2019 Ram 3500 Dually. For your OEM gooseneck you will want the B&W Ball and Safety Chain Kit for Ram Underbed Gooseneck Trailer Hitch # BWGNXA2062 and the Reese Safety Chain Kit with Clevis Hooks - 44" Long - 20,000 lbs - Qty 2 # RP49151.
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  • Choosing Between the Reese 16K and 20K Goose Boxes
    In order to choose the correct Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter you'll need to first know which model pin box you have (1621, 1116, 1716 etc.) and then the weight capacity of the existing pin box. The part # RP94716 and part # RP94720 are both for a 1621 but have 16,000 lb and 20,000 lb weight capacities. I recommend going with the option that matches the capacity you have now but if you would like to go with a higher rated option for more of a safety margin...
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  • Lightweight 5th Wheel Hitch Option for a 2018 Ram 3500 Short Bed with the Factory Prep Package
    I do have a really good option for you but the two you listed cannot be done safely. The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part # RP94720 cannot be used on your 2018 Ram 3500 because it has a short bed. If you were to use the Reese Goose Box the loft of your trailer would likely come into contact with the cab of your vehicle causing thousands in damage. The Demco Recon Gooseneck-to-5th Wheel Trailer Hitch Adapter part # DM8550045 cannot be used with a rotating...
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  • Reese Goosebox Recommendation for 2019 Grand Design Solitude 310GK
    The correct Reese Goose Box for your 2019 Grand Design Solitude 310GK is the # RP94716 since I was able to determine the pin box type your trailer has is a 1621 and the GVWR is 15k. The 20k version part # RP94720 that you referenced would technically work too but it would have more weight capacity than you'd technically need.
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  • Can 20K Reese Goose Box Replace Lippert 1116 Pin Box on Keystone Fusion
    Yes, the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720 can replace your existing 1116 pin box on your Keystone Fusion if the Spacer Kit # RP61301 is used. Since your Fusion is rated at 17K the # RP94720 will be perfect, it's rated at 20K GTW and 4K TW. For a goose ball and safety chain kit I recommend B&W Ball and Safety Chain Kit # BWGNXA2061. It comes with a 2 5/16" ball, 2 safety chain anchors and a storage case for when you're not towing. The ball and...
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  • Recommended Gooseneck Pin Box To Replace Lippert 1621 On 5th Wheel Trailer
    Thank you for the picture! I reached out to my contact at Lippert and based on the serial number you provided I was able to confirm that your trailer has a 1621 pin box with an 18000lb rating. For a gooseneck pin box that will fit you will need either the Reese Goose Box - 20000lb # RP94720 or the Gen-Y 25000lb # GY38FR. Between these two options I recommend the Gen-Y # GY38FR due to it having a built in shock absorber feature that will give you a smoother ride, but also due to...
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  • Which Reese Goose Box Fifth Wheel Adapter Fits 2017 Keystone Montana 3950bh
    The Goose Box your 2017 Keystone Montana 3950bh needs is the 20k part # RP94720 with the spacer part # RP61301. Since your fifth wheel trailer has a GVWR of 16,885 lbs you have to go with the 20k version of the Goose Box and the spacer to fit the wider frame of the 1116.
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  • Gooseneck Hitch Ball for 2016 Ram 3500 With OEM Puck System and Reese Goose Box
    Both the B&W and Curt gooseneck balls for your 2016 Ram 3500 with the OEM pucks/gooseneck are compatible with the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720. The slightly higher B&W Ball # BWGNXA2062 can actually be beneficial over the shorter Curt Ball # C58CR or # C60618 because it can help ensure you tow level. Also, the B&W is a better hitch ball overall because of its locking handle that makes it much easier to use and secure to the hitch than the...
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  • Replacing Pin Box on 2020 Grand Design Solitude 5TH Wheel with Reese Goose Box 1621
    Yes, the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720 will replace the 1621 MORryde pin box that came on your 2020 Grand Design Solitude 377MBS. I do recommend double checking the sticker that is on the MORryde pin box for the 1621 as I have seen one off's that will sometimes have something different. You will also need the Reese Safety Chain Kit # RP49151 since you are switching to the gooseneck ball connection. And the B&W Ball and Safety Chain Kit # BWGNXA2061...
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  • Best 5th Wheel Hitch and Pin Box Combination for 2020 Ford F-350 Short Bed With OEM Pucks
    Thanks for all the information. It gives me a couple ideas to throw your way to see what you'd prefer. The very best option in my opinion is to use the best hitch and best king pin option for the smoothest ride and turning clearances. That would consist of the B&W Companion # BWRVK3300 which installs in two parts so it can be a one man job, and then a Sidewinder pin box for your turning clearances. You can use the non-air ride # RP34FR or my preference the air ride # RP61422. I also...
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  • Suggestions For Helping with 5th Wheel Chucking with 2021 Forest River 2621WS Ultra-Lite
    I'll start out by saying that this is going to be fairly normal with a trailer that size and there's really not a way to completely eliminate chucking; additionally there aren't adjustments on the hitch or trailer that can be made to help curb this. However, there are components that are better suited to help reduce the effects than others and if you wanted to go about trying to reduce this as much as possible there are 2 routes you could go. Without knowing the exact hitch you're using,...
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  • Selecting The Correct Reese Goose Box For A Heartland Bighorn 3760EL
    The Reese Goose Box # RP94720 will fit on your Heartland Bighorn 3760EL. You have a Lippert 1621 pin box from the factory on your Bighorn. In looking up information on your Bighorn it looks like your GVWR is only 16,000lbs and your tongue weight is below the 3,200lbs which would allow you to use a Reese Goose Box # RP94716. You can still use the 20,000lb Goose Box and should use it if your tongue weight is over the 3,200lbs when you are fully loaded. This can also be transferred...
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  • Reese Goose Box for 2017 Fuzion Toy Hauler with MorRyde RPB72-1116 Pin Box
    For the Reese Goose Box that will work perfectly to replace the existing MorRyde RPB72-1116 model on your Fuzion Toy Hauler I recommend the Reese # RP94720 along with the Spacer Kit # RP61301 (which is what allows it to fit the Lippert 1116 wing brackets). This will bolt right up to the pin box brackets on your trailer, features a robust 20,000 pound weight capacity, and will allow you to easily tow your toy hauler with the gooseneck ball in your truck without voiding any warranties....
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  • Can I Put a Reese Goosebox on a 2019 Vanleigh Vilano 369FB 5th Wheel Trailer
    The Reese Goosebox you'll need and be able to fit on your trailer will depend on the actual trailer. In addition to the GVWR of the trailer, which will be used to determine the capacity you'll need (either 16k or 20k), you will need to know the pin box model number- either Lippert 1621, 1117, etc.. We do not have specific information on what pin boxes are used on particular trailers, so you'll want to check the pin box for the spec sticker, which should have the model number printed on...
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  • Is There a Reese Goose Box that Fits a Lippert TURNING POINT Pin Ball
    I have a couple solutions for you but no there is not a goose box that will work with your Lippert Turning point pin box. The Lippert Turning Point pin box has unique bolt hole configuration so it cannot be interchanged with another pin box. I recommend just installing a 5th wheel hitch on your 2021 Chevrolet Silverado 3500. The Curt A25 5th Wheel Trailer Hitch item # C16180 is a dual jaw hitch rated up to 25,000 lbs. This 2-Jaw locking system provides 360-degree jaw-to-king-pin contact...
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  • Best Towing Option For A 2022 Keystone Montana 3121RL Pulled With A 2021 GMC Sierra 3500 6-3/4' Bed
    The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720 is only going to be roughly 3/4" longer from the 5th wheel pin box that comes standard on your 2022 Keystone Montana 3121RL. For this reason I do not recommend using this when towing with your 2021 GMC Sierra 3500 with the standard length bed. To make it simple the rear axle center line is approximately 42" from the cab of your Sierra. The Montana is 8' wide, at a full jackknife turn 6" of your Sierra is going...
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  • Will Reese RP94720 Goose Box Air Ride 5th Wheel To Goosneck Adapter Replace Lippert 1621SHD Pin Box
    The only difference between a Lippert 1621 HD and SHD is the weight capacity. A 1621HD has an 18K capacity, while a 1621SHD has a 21K capacity. As far as the bolt-up goes, there is no difference. Long story short, as long as the as-towed weight of your 5th wheel is less than the 20K capacity of the # RP94720 Reese Goose Box, it'll work perfectly for you. You can see an installation of the Reese # RP94720 Goose Box by clicking the provided link.
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  • 20k or 16k Reese Goose Box for Montana 3121RL Fifth Wheel
    To be on the safe side and be sure that you can use the full weight capacity of your Montana 3121RL you'd want the 20k Reese Goose Box part # RP94720 that you referenced.
    view full answer...
  • Could Reese Goose Box Be Used with Montana High Country 385BR and Ram 3500 Short Bed
    Since the Montana High Country 385BR has a tapered nose you'd have enough turning clearance with your 2020 Ram 3500 with an OEM gooseneck hitch using the Reese Goose Box part # RP94720.
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  • Recommended Reese Goose Box Fit for 2021 Wolfpack 365PACK16
    We've previously found that the 2021 Wolfpack 365PACK16 uses a Lippert 1621 pin box, which I can confirm for you if you can reply with a photo of the ID tag on your existing pin box. You can simply reply to this email address. If you do indeed have the Lippert 1621 OEM pin box, you'd use the 20K capacity # RP94720 Reese Goose Box. Many gooseneck adapters can damage the 5th wheel frame, but using the Goose Box won't have any warranty ramification, as Lippert has approved its use as a...
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  • Goose Box Fifth Wheel Adapter that Fits 2020 Grand Design Momentum 349M
    We have confirmed in the past that your 2020 Grand Design Momentum 349M has a Lippert 1621HD pin box so the correct GooseBox is the part # RP94720 and you'd be set!
    view full answer...
  • 20k Reese Goose Box that Fits Cyclone 3800 Heartland Toy Hauler
    The Reese Goose Box part # RP94720 does fit your Heartland Cyclone 3800 toy hauler as we've had previous customers with your 5th wheel give us the needed info to identify which Goose Box fits and this is the correct one. This part number comes with everything you'd need to install it so no other parts would be needed!
    view full answer...
  • How To Determine The Correct Reese Goosebox For a 2012 Keystone Alpine
    To find if the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720 will work on your 2012 Keystone Alpine 3555RL you will need to check your current pin box for a sticker that identifies what model it is. The Reese Goose Box # RP94720 is made to replace Lippert 1621, 1621HD, and 0719 pin boxes. If the sticker is missing from your pin box I included an article that will show you how to measure your pin box to find out which model it is.
    view full answer...
    Image 1 for
  • Correct Reese Goose Box for a 2018 Grand Design Momentum 398M
    The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part # RP94720 should be correct for a 2018 Grand Design Momentum 398M but I do recommend you confirm you have the Lippert 1621HD bolt pattern by looking for this number on the pin box itself.
    view full answer...
  • Reese Goose Box That Fits 2020 Dutchman Voltage Toy Hauler
    The 2020 Dutchman Voltage toy hauler you have has a Lippert 1621 Rota Flex pin box on it so the Goose Box part # RP94720 that you referenced would be the correct fit.
    view full answer...
  • Will the Reese Goose Box Fit a 2018 Grand Design Momentum 399TH
    The only Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter we have that is rated for the weight of your 2018 Grand Design Momentum 399TH is part # RP94720 which has a 20,000 lb capacity and is designed to be a replacement for Lippert 1621, 1621HD, and 0719 pin boxes. If you have one of these pin boxes on your trailer now then you can use the Reese Goose Box. If you do not know the model number of your Trailair Rota-Flex 5th Wheel Pin Box then you can look on the pin box...
    view full answer...
  • Reese Goose Box Recommendation for 2018 Grand Design Momentum 349M
    Your 2018 Grand Design Momentum 349m has a Lippert 1621HD pin box on it from the factory so the Goose Box part # RP94720 that you referenced would be the correct Goose Box to use.
    view full answer...
  • Determining if Spacers Are Needed to Install Reese Goose Box on Trailer Frame
    If the pin box bracket width on your trailer (where the pin box normally fits into) measures 12-1/2 inches then you'd need to use the adapter part # RP61301 with the part # RP94720. If instead it measures 12 inches no adapter would be needed. While you are out there measuring it though you should also check out the help article I attached that covers how to measure a pin box to determine it's model so that you can verify for sure what you need.
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  • Reese Goose Box to fit as Replacement for Lippert 1621 SHD
    The Lippert 1621SHD is basically a standard Lippert 1621 pin box so the correct fitting GooseBox would be the part # RP94720 which has a 20k capacity. As long as your trailer won't weigh more than 20,000 lbs when fully loaded this GooseBox would be exactly what you'd need.
    view full answer...
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Randy B
Installed by:
Randy B
Employee Jacob T
Video Edited:
Jacob T
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C
Employee Isabelle B
Updated by:
Isabelle B
Employee Shane H
Test Fit:
Shane H
Employee Alex H
Written by:
Alex H
Employee Aidan B
Video by:
Aidan B

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