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  1. 5th Wheel Gooseneck Adapter
  2. Reese
  3. 5th Wheel Trailer to Gooseneck Hitch
  4. Replaces Pin Box
  5. Shock Absorbing
  6. Adapts Trailer
Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - 22,500 lbs
Reese

Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - 22,500 lbs

Part Number: RP59KR
In Stock
$1,908.32
Retail:$2,452.80
You Save: $544.48
5th Wheel Gooseneck Adapter
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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. 1-800-940-8924 to order Reese 5th wheel gooseneck adapter part number RP59KR or order online at etrailer.com. Free expert support on all Reese products. Great prices and Fastest Shipping for Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - 22,500 lbs. 5th Wheel Gooseneck Adapter reviews from real customers.
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  • Reviews (324)
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Reese 5th Wheel Gooseneck Adapter - RP59KR

  • 5th Wheel Trailer to Gooseneck Hitch
  • Replaces Pin Box
  • Reese
  • Shock Absorbing
  • Adapts Trailer
  • 22500 lbs GTW
  • Fabex 600
  • Lippert 0719
  • Lippert 1621
  • Lippert 1716
  • Lippert Rhino
  • No Extra Clearance

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
      • Safety chains are required and sold separately


Specs:

  • Designed to replace Lippert 1621, 1716, 0719, Rhino, and Fabex PB 600 series pin boxes
  • Towing capacity: 22,500 lbs
    • Note: Towing capacity is reduced to 20,000 lbs when the Rhino bolt hole configuration is used
  • Tongue weight capacity: 4,500 lbs
  • Ball size: 2-5/16"
  • Limited lifetime warranty


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.



94980 Reese Products GooseBox - Fifth Wheel Trailer to Gooseneck Trailer Hitch Coupler - 22.5K

Replaces Reese 94716




California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

323 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.

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See what our Experts say about this Reese 5th Wheel Gooseneck Adapter

  • What is the Pin Weight Capacity of the Reese Goose Box RP59KR
    Hey Barry, the Reese Goose Box part # RP59KR that you referenced has a pin weight capacity of 4,500 lbs. What is the pin weight of your trailer?
    view full answer...
  • Recommended Goosebox for a 2022 Grand Design Momentum 397 THS 5th Wheel Trailer
    Thanks for the picture Mark! Your Grand Design Momentum has a MORryde RPB72-FD, which fits a Lippert Rhino bolt pattern. The correct goosebox is going to be the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter item # RP85FR. f you don't already have them you will also need the Reese Safety Chain Kit item # RP49151. Gooseneck connections are required by law to use safety chains and the goosebox does not include them. What are you pulling your trailer with?
    view full answer...
  • What Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter do I Need for My Lippert 0516?
    Hello Kyle, Thank you for the pictures! I reached out to Lippert to get your Pin Box number and they informed me that it is a Pin Box that is no longer made, and weren't much help on a different one that will fit. In my research I found that it might compare to the Lippert 1621, but the only way for you to be sure is to measure the bolt holes (as you cannot believe everything you read on the internet, shocking I know). I attached an image with what the measurements should be. If things...
    view full answer...
  • What Gooseneck Pin Box do I Need for My 2025 Coachman Brookstone 374RK with 18" Clearance?
    Hello Keith, Wow, that is a really nice 5th wheel, congrats!! The Reese Goose Box # RP59KR is a great choice for replacing the factory Rhino-mount pin box on your 2025 Coachman Brookstone 374RK, particularly because of your need for a front bolt hole to center ball measurement between 16 and 18 inches. The Gen-Y gooseneck pin box designed for the Rhino mount, while heavy-duty, only offers about 14 inches from the front mounting hole to the center of the gooseneck ball. That falls short...
    view full answer...
  • Is There a Gooseneck Pin Box That Fits a Rhino Box and Has a 21,000 lbs Capacity?
    Hey Tony, congrats on the new 5th wheel trailer. That is correct when you use the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter item # RP59KR on a Rhino Box it does reduce the capacity to 20,000 lbs. The only other Reese option is item # RP85FR which is also limited to 20,000 lbs. For a gooseneck pin box that does have a 21,000 lbs capacity and fits a Rhino Box, I recommend the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box item # GY33GR. This one goes all...
    view full answer...
  • Which Reese Goose Box Fits 2024 Keystone Montana 3531RE
    Hey Steve, since we know your 2024 Keystone Montana 3531RE has a Lippert style pin box currently the Reese Goose Box part # RP59KR that you referenced would be correct for it. This has more than enough weight capacity so it should work great for you.
    view full answer...
  • Is Gen-Y Fifth Wheel to Gooseneck Adapter Safe on 2021 Montana 3761FL
    Hey Todd, officially Lippert has not endorsed the use of the Gen-Y part # GY58GR on your 2021 Montana 3761FL and the only one they'll honor the warranty with is the Reese Goose Box like the part # RP59KR. I've heard that the reason for not honoring the warranty is more political than anything else. It's not that it's more stressful but more that they have a great relationship with Reese if that makes sense...is price the reason you'd prefer the Gen-Y?
    view full answer...
  • Can Reese Goose Box Replace Curt Helux on Alliance Paradigm 340RL
    Hey Mike! To answer your first question yes, the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter # RP59KR can replace the Curt Helux. This is compatible with the Rhino bolt pattern which is the same thing the Helux fits. I don't see bed rail clearance being an issue on your 2024 F-350 but it doesn't hurt to check. The # RP59KR measures 20-1/4" from the center hole to the bottom of the gooseneck coupler. Once you have the trailer you can use this measurement to determine...
    view full answer...
  • Which Reese Goose Box Fits 2025 Montana 3915TB
    Hey Luke, yes the Reese Goose Box part # RP59KR is a confirmed fit for your 2025 Montana 3915TB. This fits basically all of the Lippert pin box styles including the one your Montana will come with. Congrats on the new camper! Looks like a really nice one!
    view full answer...
  • Which Reese Goose Box Fits 2023 Cougar 23MLE
    Hey John, yes the Reese Goose Box part # RP59KR does fit your 2023 Cougar 23MLE since we know you have a Road Armour Lippert 1621 pin box on your camper and that's what this is.
    view full answer...
  • Which Reese Goose Box Fits 2022 Cougar 364BHL
    Hey Russ, since we know that your 2022 Cougar 364BHL has a Lippert 1621 style pin box the Reese Goose Box part # RP59KR does fit it and will work great. As far as the turning radius goes I looked up pictures of your Cougar and it does have a tapered nose that was designed for sharp turning clearance for short bed trucks so I believe it will allow for tight turns but maybe not completely to 90 degrees. Do you commonly need the full 90 degree turn?
    view full answer...
  • Will Reese Goose Box Bind Up on Unlevel Ground Like Fifth Wheel Hitch Does
    Hey Clarendon, great question but no the Reese Goose Box part # RP59KR would not find up like your fifth wheel hitch does. The really great thing about gooseneck couplers is that due their design they just don't get bound up like fifth wheel hitches do. Overall in my opinion they are superior to fifth wheel setups in every way.
    view full answer...
  • Will a Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Work w/ a Short Bed Truck?
    It will but you're not going to be able to do a full turn. The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter item # RP59KR isn't any shorter than a standard pin box. If your F-350 has the puck system you can use the Gen-Y Hitch Gooseneck Trailer Hitch for Ford OEM Puck Systems item # GY43XR to gain 5" of offset. This adapter mounts in your puck system and pushes the hitch ball back 5" towards your tailgate. If you have any additional questions go ahead and throw them...
    view full answer...

Do you have a question about this 5th Wheel Gooseneck Adapter?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Steven C
Installed by:
Steven C
Employee Wilson B
Updated by:
Wilson B
Employee Katherine B
Updated by:
Katherine B
Employee Michael B
Updated by:
Michael B
Employee Amanda K
Written by:
Amanda K

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