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:$2,572.57
Our Price: $1,516.74
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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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Reese Gooseneck and Fifth Wheel Adapters - RP94720

  • 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

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   (128 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:

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 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 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 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:

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:

Best Decision I've made! I have had alot of goose neck hitches but this is the one I will stick with.


Comments
Still the Best Decision!
Robert F - 06/18/2021


- RP94720
by:

the best decision I made on my 5th wheel!! we have tried adapters for goose neck but they strain the frame and cause bucking. this is not the adapter this is a design that changes the pin box once done we don't have a hitch in the back to worry about and the trailer pulls better than it did even with the pin box. it also clears everything in the bed and does not hit the top of the bed.



- 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:

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:

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:

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:

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.



- RP94720
by:

Very smooth ride, absorbs road bumps well. The air bags allows the driver to tune in the best ride possible. A fantastic upgrade to any fifth wheel.



- RP94720
by:

It is a dream to tow with the Reese Goose Box. The difference in the ride is unbelievable, the truck now rides as if the fifth wheel was not even there. It feels as if you were riding empty in the truck of how smooth it is. I installed the goose box and set off on a trip over 300 miles and when you look in the rearview mirror you can see the difference in the ride right away. The trailer would just glide behind the truck, you can see the minor ups and downs of the rv being absorbed by the air bags and there was no movement in the truck. The installation was super easy with two guys and it took us about 1.5 hrs. It feels much lighter than the 225lbs they state, it feels more like 160lbs or so. The Bulldog coupler definitely helps since it allows for some offset when hitching up.



- RP94720
by:

I'm very happy with the goose box. I really enjoy the not having to take the fifth wheel in and out of the bed of my pickup. I think there needs to be a better way to hook up the safety chains, that is the only complaint I have



- RP94720
by:

OMG! Get it and don't look back! I will never own a 5th wheel hitch again. Top quality. The only con is you have to lift your camper up a few more inches. Oh, and what was reese thinking putting the cable where you can't reach it and the air valve where it is. Reese, relocate them where an old man can pull the cable without climbing in the bed of the truck and same with the air valve. Even with these cons, tons better than traditional 5r hitch.



- 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:

Received in timely fashion. Works as it should. No problems with it at all.


Comments
Great
Patrick B - 06/27/2021


- RP94720
by:

This is an awesome product. I have had this for about a year now and already put several thousand miles on it. I pull about a 15,000 lb (loaded) 5th wheel trailer all over the country as I travel to different job sites for work. I chose the 20K over the 16K so I knew I wouldn't being cutting it close on the weight rating, plus if I upgrade to a larger trailer I can pull it off and throw it on the new one (hopefully). I installed it by myself with no problems at all; it was an easy job that probably didn't take me more than a couple of hours to remove the existing king pin box and install the Reese Goosebox. If you would rather keep a goose neck hitch in your truck than a 5th wheel hitch, I highly recommend this one. It pulls like a dream. There is little to know chucking unless it is a really rough road. I have never had any problems with the air leaking off of the airbag either. This is one upgrade that is definitely worth you money if you prefer the goose neck hitch!


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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.
    view full answer...
  • Recommended Safety Chains for 20K Reese Goose Box 5th Wheel to Gooseneck Air Ride Coupler Adapter
    The Reese Safety Chain Kit with Clevis Hooks - 44" Long - 20,000 lbs - Qty 2 # RP49151 is my recommendation for the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720. This chain kit comes with the hardware for installation to your Goose Box. I've attached a photo to assist as well as the installation instructions.
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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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  • 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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  • 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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  • 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...
    view full answer...
  • 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.
    view full answer...
  • 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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  • 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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    Image 1 for
  • 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.
    view full answer...
  • 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...
    view full answer...
  • 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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  • Comparing Reese Goose Box Pin Box to Andersen Ultimate for Ram 3500 Short Bed Turning Clearances
    The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720 for Lippert 1621, 1621HD, and 0719 pin boxes will not increase your turning clearances by itself beyond the Andersen Ultimate hitch you have. The distance from the center of the hitch ball coupler to the center of the first row of bolt holes is 17-3/4 inches. The biggest benefit is the air ride suspension along with one less moving part. The only way to increase this is to use an offset hitch ball like the...
    view full answer...
    Image 1 for Image 2 for
  • Can Goose Box be Used with Short Bed Truck
    The Reese Goose Boxes like the 20K Air Ride # RP94720 referenced in your question are pin box specific. This means they are designed to replace specific pin box models on the trailer so you will want to first make sure that it will be compatible. This particular unit is designed to replace the Lippert 1621, 1621HD, and 0719 pin boxes. The existing pin box on your trailer should have a sticker or plate on it that lists its model. Turning clearance may indeed be an issue with the Goose...
    view full answer...
  • 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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  • 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...
  • 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.
    view full answer...
  • 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...
  • 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.
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  • 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
  • How To Find the Correct Reese Goose Box for a 2006 Forest River Wildwood
    In order to confirm the correct Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter for a 2006 Forest River Wildwood 5th Wheel Trailer you will need to measure the pin box using the article I have attached for you below assuming the pin box sticker on the side of the pin box is no longer legible. The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part # RP94720 is the most likely candidate which fits Lippert 1621, 1621HD, and 0719 Pin Boxes which are most common.
    view full answer...
  • Reese Goosebox RV Warranty Implicatioins
    I don't have a listing by manufacturer, but Reese tells us that Lippert approves the Goosebox for most of their frames. You'd need to ask the RV manufacturer about which of their specific models use Lippert frames, and then find out if that specific frame warranty allows the use of the Goosebox. Unfortunately, the world of RV parts isn't as cut and dried as that of passenger vehicles. The Reese # RP94720 Goosebox is a replacement for the OEM Lippert 1621, 1621HD, and 0719 pin boxes. I've...
    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.
    view full answer...
  • 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...
    Image 1 for
  • Replacement Reese Goose Box for a Lippert 1621 Pin Box
    Using Item Number 2776782 on the tag in your picture I can tell you pin box is a Lippert 1621 series. So the correct 20,000 pound Goose Box is part # RP94720.
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  • 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...
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  • Replacing Lippert Rota-Flex with Reese Goose Box on 2018 Grand Design Solitude
    To replace your existing Rota-Flex 5th wheel pin box with the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94720, you'll need to confirm its model number and weight rating. This information is typically displayed on a sticker or plate on the pin box itself. Lippert makes three models of the Rota-Flex, so the weight rating on the label is enough to identify which of these three you have: -Model 1621 Trailair Rota-Flex 5th Wheel Pin Box 18,000 lbs # LC328330 -Model...
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  • Goosebox Compatibilty with Forest River Sabre 301BH
    You will want to confirm on your pin box, but it appears you have a Lippert 1621 pin box. If this is the case you can use the Reese Goose Box # RP94720. If you can't find the number on the pin box you can call the manufacturer with your VIN or you can take some measurements. I've attached an article to assist. If you have the more recent model with the Lippert Turning Point pin box, there is not a replacement option available as it is welded to its brackets.
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  • Could Short Bed 2020 GMC Sierra 3500 be Used with Reese Goose Box
    If the fifth wheel hitch you plan to tow with your 2020 GMC Sierra 3500 has a tapered nose designed for short bed truck clearance then you could get by with a Reese Goose Box like the part # RP94720. Otherwise you'd need to use a slider fifth wheel hitch like the B and W Slider Companion part # BWRVK3775 with the standard pin box of the trailer to ensure you have the turning clearance you'll need. Definitely not tired of questions like this though!
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