1. Fifth Wheel King Pin
  2. Reese
  3. Lippert
  4. 1621
  5. Reduces Bounce and Jarring
  6. 16000 lbs GTW
Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 - 16,000 lbs

Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 - 16,000 lbs

Item # RP94716
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Fifth Wheel King Pin
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Shipping Weight: 170 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 800-298-8924 to order Reese fifth wheel king pin part number RP94716 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 - 16,000 lbs. Fifth Wheel King Pin reviews from real customers.
  • All Info
  • Reviews (7)
  • Q & A (241)
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  • Why etrailer?

Reese Fifth Wheel King Pin - RP94716

  • Lippert
  • 1621
  • Reduces Bounce and Jarring
  • Reese
  • 16000 lbs GTW
  • Pin Box Upgrade
  • Cushioned
  • Fixed Turret

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 the following pin boxes:
    • Lippert 0719, 1621 and 1621HD
    • Fabex PB-600 Series
  • Towing capacity: 16,000 lbs
  • Tongue weight capacity: 3,200 lbs
  • Ball size: 2-5/16"
  • Limited lifetime warranty


Note: Traditional gooseneck coupler locks will not work on the Goose Box. A wheel lock should be used instead.


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.



94716 Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 - 16,000 lbs

Replaces Reese RP94622

Installation Details RP94716 Installation instructions




Customer Reviews

Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 - 16,000 lbs - RP94716

Average Customer Rating:  5.0 out of 5 stars   (7 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.

- RP94716
by:

The air ride function on the Reese Goose box makes pulling the camper very smooth. One of my favorite things is that I don't have to have a large 5th wheel hitch in my truck bed. 799739



- RP94716
by:

Installed on my Forest River XLR Boost in about an hour and works great with my GMC 2500. Ride was smooth and easy to connect/disconnect to the truck. 792250



- RP94716
by:

I haven’t installed it yet but it was packed well and did not have any damage. This is my second Reesebox. First one was damaged in the Easter Sunday tornado. They are an unbeatable product 790510



- RP94716
by:

Jenny B., customer service, did excellent job on order. Online category was easy to navigate and love online price match , look forward to making more purchasing with etrailer 786603



- RP94716
by:

Installed very easily on my Grand Design 31MB, Towing with a 2019 F350 short box and have about 7" of bed rail clearance once the box is aired up. Using the B&W 4" offset, can get close to 75-80 degree turns Hardest part was tracking down a 220lb torque wrench to get all the bolts secure. 772092



- RP94716
by:

I own a 2016 fifth wheel trailer. I have been dealing with the fifth wheel in the back of my truck, it takes up a lot of room and is not easy to remove. I purchased a 2020 Chevy 3500HD truck with factory prep for either fifth wheel or goose neck. I decided to purchase the Reese goose neck from etrailer and switch to goose neck towing. I was very nervous about it all working out. From the beginning to the end etrailer was absolutely fantastic, from questions to delivery on time. If you are thinking of switching to goose neck towing this is a great option. It works great, I would not hesitate to order this item. I was able to do all the work. 697936



- RP94716
by:

Excellent product, excellent customer service. I ordered this from another online company with a promise I would receive it within a week. That company didn't come thru but e-trailer did. We went on our first trip and this hitch it a MUCH smoother ride than our other fifth wheel adapter to gooseneck. Highly recommend! 644564


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Ask the Experts about this Reese Fifth Wheel King Pin

  • Are the 16K Reese Goose Box and 20K Reese Goose Box Different Sizes
    The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part # RP94716 for 16,000 lbs or part # RP94720 for 20,000 lbs have the exact same overall dimensions. The 20,000 lb model has extra internal bracing to give it more strength. They are also both designed to replace the same pin boxes which is a Lippert 1621, 1621HD, and 0719. With that being said there are adjustments that can be made at the mounting location for the pin box so it is possible that a different set of...
    view full answer...
  • Will the Reese Goose Box 94716 Hit the Bed Rails On a 2013 Chevy Silverado 2500 While Turning
    I have attached a dimensional photo of the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part # RP94716 which you can use to determine your bed rail clearance but I would not be able speculate on this for you as there are just too many variables involved. That said, we do offer the 1" High-Rise Ball for B&W Turnoverball Gooseneck Trailer Hitch part # BWGNXA2050 and the 4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitches part # BWGNXA4085 which will both increase...
    view full answer...
  • Can the Reese Goose Box be Used on a Short Bed 2016 Ram 2500
    The correct Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter for a Lippert 1621 pin box is part # RP94716 for 16,000 lbs or part # RP94720 for 20,000 lbs. With that being said, it is not recommend to use the Reese Goose Box on a short bed truck due to limited turning clearance. They do make an offset gooseneck ball adapter for the Hide-A-Goose Underbed Gooseneck Trailer Hitch part # 9467 on your 2016 Ram 2500, the 5" Offset Ball part # 19308 but this still is more than likely...
    view full answer...
  • Correct 16,000 lb Reese Goose Box for Lippert 1621 Pin Box
    Thank you for those measurements, they were perfect, and we do have the exact Reese Goose Box you need. What your measurements show is that you have a Lippert 1621 pin box, so the 16,000 lb Goose Box you need is: - Reese Goose Box # RP94716 This Goose Box is going to be a great upgrade for your trailer and give you a way to very comfortably tow your fifth wheel with your gooseneck hitch.
    view full answer...
  • Locking a Trailer that has a Reese Goose Box Adapter/Coupler
    The design of the Reese Goose Box adapters, such as # RP94716, prohibits the use of locks designed for standard gooseneck couplers. They cannot grab onto the coupler like they are supposed to. To secure the trailer a wheel lock such as # WI490 or # RA-25 or something similar is recommended instead. I have linked some videos on these locks for you.
    view full answer...
  • How to Determine Clearance of Reese Goose Box
    If you have the factory gooseneck prep package on your 2020 GMC Sierra 3500 there isn't an offset ball that will work, though I can tell you how to determine if a Reese Goose Box will give you enough clearance to make a 90 degree turn with your truck. You will use this formula: (A + B) - C = Clearance A = Distance from center of gooseneck ball to truck cab B = Length of offset (this will be zero for the Goose Box and no offset ball) C = Width of trailer divided by 2 You want...
    view full answer...
  • Correct Reese Goose Box for Lippert 1716 Model Pin Box on Trailer
    The correct Reese Goose Box to replace the factory Lippert 1716 model on your Cedar Creek Trailer is the part # RP94716-61301, This is essentially the Reese # RP94716 Goose Box that you were looking at but with an added spacer kit to make it compatible with the Lippert 1716 brackets and bolt pattern. The spacer kit is also available separately with part # RP61301. I do understand the confusion over the different part numbers out there. The 94622 model that you referenced also seeing...
    view full answer...
  • Replacing Grease Zerk on Reese Goose Box 2nd Generation Hitch
    For your Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94716 or # RP94716-61301 the grease fitting is a standard grease zerk. You can use # GZERK as a replacement. The threading of the zerk is 1/4-28.
    view full answer...
  • Reese Goose Box Recommendation to Replace MORryde Pin Box SPB72-1621LD
    According to my research, your MORryde pin box SPB72-1621LD is modeled after and shares the same dimensions as the Lippert 1621. We've also had several customers indicating this. Therefore, I recommend the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 - 16,000 lbs # RP94716. This will work as a direct replacement and will provide a cushioned gooseneck coupler instead. I've gone ahead and included a photo with the dimensions and bolt pattern of a Lippert...
    view full answer...
  • Adding Air to Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter
    Adding air to the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP94716 is a fairly straight-forward procedure but there are some steps you need to take to add the air. Attached is a clip from the linked instructions but I am adding the text here as well: 1. Perform the hitching procedure before adjusting suspension air pressure, with the trailer loaded. 2. With trailer hitched to truck and landing gear / jacks retracted, add air to the air bag fill valve shown...
    view full answer...
  • Tailgate Hits Reese Goose Box When Coupling 5th Wheel with 2019 Ford F-350 Super Duty
    It is very common to not be able to lower the tailgate all the way when towing a fifth wheel trailer. The Reese Goose Box 16k like part # RP94716 is height adjustable, you can adjust the height to allow more room for your tailgate to lower but you do want to make sure your setup remains level if you adjust the height. The air bag should be filled using the valve after the fifth wheel is coupled. There is an indicator that shows when the air is at the optimal level for ride quality. If...
    view full answer...
  • Recommended Goose Box To Replace Lippert 1621 On Trailer With 16100-Lb GVWR
    Since you have a trailer that has a GVWR of 16,100-lbs I recommend the Goose Box that is rated higher, part # RP94720. The goose box you came from has a weight capacity of 16,000-lbs. This goose box has a towing capacity of 20,000-lbs and a tongue weight capacity of 4,000-lbs.
    view full answer...
  • Will B&W Offset Ball Provide Enough Turning Clearance for 2019 Ford F-250 Short Bed Towing Trailer
    Since you have the short 6-3/4' bed on your 2019 Ford F-250 I highly recommend using something to help offset your trailer so that you lessen the chances of the trailer making contact with your truck cab during tight turning situations. If you already have a Reese Goose Box, like part # RP94716, installed on your trailer then the only thing that you can easily do is use the 4" Offset Ball # BWGNXA4085 that fits your B&W Gooseneck Hitch # BWGNRK1116. This won't likely give you enough...
    view full answer...
  • Mounting Hole To Hitch Ball Dimensions Of Reese Goose Box 5th Wheel To Gooseneck Adapter
    For the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter, part # RP94716, I have attached a photo that has the dimensions you may find helpful. The distance from the center of the hitch ball pocket tot he first set of mounting holes on the adapter is 17-3/4 inches. This adapter has the same dimension as the Lippert 1621 you are replacing.
    view full answer...
  • Recommended 5th Wheel to Allow Hitching Up and Unhitching at Tight Angles in Pole Barn
    If your current Lippert Pin Box is number 0719, 1621 or 1621HD then the Goose Box Air Ride Coupler would be a great option for your needs without sacrificing trailering performance and safety. The Goose Box # RP94716 is the option you will want when trying to hitch up and unhitch at a tighter angle, like in your pole barn. You are correct that it will allow you to hitch up at any allowed angle with the towing combination. The Goose Box has a capacity of 16,000lbs and a tongue weight...
    view full answer...
  • Determining Cab Clearance with Reese Goose Box and 2020 GMC Sierra 2500
    The 46 inch cab to gooseneck ball measurement that you mentioned for the new short bed 2020 GMC Sierra 2500 is quite a bit longer than on previous models. There is a decent chance that you will have sufficient cab clearance when making sharper turns using a standard Goose Box like the Reese # RP94716 that you were looking at. With that being said cab clearance is also affected by the trailer's width and nose design. If you already have a trailer you can use half of its width as part...
    view full answer...
  • How Much Does the Reese Goose Box # RP94716 Weigh
    The Reese Goose Box # RP94716 has a shipping weight of 170 pounds. You can subtract a few pounds for the shipping materials so it will weigh approximately 165 pounds.
    view full answer...
  • Compatibility of Goose Box Air Ride Coupler Adapter # RP94622 with a 5th wheel towing a Dodge Ram
    In order to ensure the Reese goose box # RP94716 will fit your 2013 Saber 36 foot fifth wheel you will need to check your pin box. You can either check the placard on the pin box or measuring to determine the correct replacement pin box. (See FAQ I included). It will fit the following pin boxes: Lippert 0719, 1621 and 1621HD and Fabex PB-600 Series. If your pin box is Lippert 0115, 1116 or 1716 I recommend Reese goose box # RP94716-61301. This trailer coupler adapter has a built-in air...
    view full answer...
  • Is it Better to Use B&W Turnover Ball and Companion Hitch or Just a Turnover Ball w/Reese Goose Box
    When towing a 5th wheel trailer the best hitch for it is going to be a 5th wheel hitch. Using a B&W Turnover ball gooseneck hitch with the Companion 5th wheel hitch is what I recommend. That way you are using the appropriate hitch to tow the trailer, whether it is a gooseneck trailer or the new 5th wheel. As far as adapters go though the Reese Goose Box such as # RP94716 is excellent and is my top choice if I was choosing an adapter to tow a 5th wheel trailer using a gooseneck hitch...
    view full answer...
  • Will the Reese Goose Box Gain Bedside Clearance
    I have attached a photo of the height measurements for the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part # RP94716 (16,000 lbs) which is the same as part # RP94720 (20,000 lbs). However, generally speaking after installing the Reese Goose Box you will lose bedside clearance. Have you tried to adjust the hitch/pin box to obtain the height you need? If you can tell me what you need additional bedside clearance for I would be happy to see if we have any other options...
    view full answer...
  • Will the Reese Goose Box Work On a Arctic Wolf 3660 with BAL NXG Frame
    The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapters are not specific to any one trailer frame manufacturer. The Reese Goose Box part # RP94716 in particular will fit any frame with the 0719, 1621 and 1621HD bolt pattern and the Reese Goose Box part # RP94716-61301 will fit any frame with the 0115, 1116 and 1716 bolt pattern. The 0115, 1116, 1716, 0719, 1621 and 1621HD bolt patterns are industry standards and again not specific to any one trailer frame manufacturer. In order...
    view full answer...
  • Are the Reese # RP94622 and # RP94720 The Same Size
    Dimensionally speaking, the Reese # RP94716 and # RP94720 Goose Boxes are the same size. Side-by-side, you'd have a hard time telling them apart. To handle the additional weight, the RP94720 is about 10 lbs heavier to account for the extra internal bracing. I've confirmed this with my Reese representative.
    view full answer...
  • What are the Differences Among the Reese Goose Box 5th Wheel to Gooseneck Adapters
    There are actually 3 Reese Goose Box options. Each one fits different pin boxes. Goose Box # RP94716 fits Lippert 0719, 1621 and 1621HD pin boxes and Fabex PB-600 Series pin boxes rated up to 16,000 pounds. Goose Box # RP94720 fits Lippert 1621 and 1621HD pin boxes rated up to 20,000 pounds. And Goose Box # RP94716-61301 fits Lippert 0115, 1116 and 1716 pin boxes rated up to 16,000 pounds. The pin box manufacturer and model number should be on a sticker or plate on the pin box...
    view full answer...
  • Options for Towing 2020 Grand Design Reflection 303RLS w 2019 Ford F-350 Short Bed OEM Rail Kit
    The older and current generations of the Reese Goosebox adapter part # RP94716 that you referenced are compatible with the factory gooseneck hitch you have on order of the 2019 Ford F-350. That said, since you have a short bed truck you may find that won't have the needed turning clearance and you'd need a slider hitch to provide that. Best solution overall that I can guarantee will fit and work well is the B and W Companion fifth wheel slider hitch part # BWRVK3370 which fits directly...
    view full answer...
  • What Size Hitch Ball Will The Reese Goose Box 5th-Wheel-to-Gooseneck Adapter Work With
    Yes, the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part # RP94716 is designed to work with a 2-5/16" hitch ball. A better way to determine the clearance between the bed rails and pin box, is to install the pin box and adjust it to the appropriate settings. As most states require a set of safety chains to be used, I recommend the Tow Ready Safety Chain Kit with Clevis Hooks part # 49150 for your pin box. I have attached a photo of how the chains should be used for you.
    view full answer...
  • When to Adjust Air Spring Pressure of Reese Goosebox RP94716
    You will want to inflate your Reese Goosebox # RP94716 air spring AFTER you have hitched the loaded trailer and retracted its landing gear. The process is outlined on the linked page taken from the complete instructions; the complete instructions are also linked for you. The pressure setting is actually subjective and is based on feel. You'll start by filling the bag to the point where the Air Inflation Indicator looks like figure 14 in the linked diagram. Since the bag has an automatic...
    view full answer...
  • What are the Measurements of the Reese Goose Box # RP94716
    I spoke with my contact at Reese before in order to get some dimensions. A lot of the build information is proprietary so they will not release it to me but I was able to get 4 dimensions that should be helpful. From the center of the ball pocket forward to the front of the Goose Box it is 7-1/2 inches. The width at the front is 11-15/16 inches. From the ball pocket center back to the nearest mounting holes is 17-3/4. From the bottom of the ball pocket to the center of the lowest...
    view full answer...
  • How to Adjust the Air Spring on the Reese Goose Box 5th-Wheel-to Gooseneck Air Ride Coupler
    According to the manufacturers installation instructions, on the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler, like part # RP94716, the starting operating pressure on the air spring should be around 35-40 psi. The instructions explain that once the Reese Goose Box is installed, you can add or remove pressure to adjust to your ride quality preference. As long as you stay in between the 35-50 psi range and do not exceed 50 psi, you should be able to fine tune the air spring...
    view full answer...
  • Will the Use of Extensions and Gooseneck Adapters Void the Warranty on Lippert 5th Wheel Pin Box
    I spoke with my contact at Lippert and I have a solution as to how to maintain your warranty and still be able to pull your fifth wheel trailer with the gooseneck hitch. She said that the use of any extension or gooseneck adapter will void the limited frame warranty. To maintain the warranty, her recommendation was for the Reese Goosebox. It is an acceptable aftermarket replacement for Lippert pin boxes. When properly installed, this does not void the Lippert limited frame warranty. Reese...
    view full answer...




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Info for this part was:

Expert Research:
Mike L
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Edited by:
Lindsey S
Installed by:
Jeff D
Installed by:
Randy B
Written by:
Alexander C
Video by:
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Updated by:
Isabelle B

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