1. Gooseneck and Fifth Wheel Adapters
  2. Gen-Y Hitch
  3. Fifth Wheel Trailer to Gooseneck Hitch
  4. Replaces King Pin
  5. King Pin Adapters
  6. Adapts Trailer
Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Lippert 1621/1621HD - 25K GTW - 4.5K TW

Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Lippert 1621/1621HD - 25K GTW - 4.5K TW

Item # GY38FR
lowest price pledge
Our Price: $1,651.48
Gooseneck and Fifth Wheel Adapters
This item qualifies for Free Truck Freight Shipping
Shipping Weight: 162 lbs
Quantity: 
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

This shock-absorbing pin box works with your gooseneck hitch to give a smooth ride while you tow your fifth-wheel trailer. The all-in-1 box has no air bags to refill or small parts to replace. Auto-latch allows for easy hookup. 4.5K pin weight. Call 800-298-1624 to order Gen-Y Hitch gooseneck and fifth wheel adapters part number GY38FR or order online at etrailer.com. Free expert support on all Gen-Y Hitch products. Guaranteed Lowest Price and Fastest Shipping for Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Lippert 1621/1621HD - 25K GTW - 4.5K TW. Gooseneck and Fifth Wheel Adapters reviews from real customers.
  • All Info
  • Reviews (21)
  • Q & A (8)
  • Photos
  • Why etrailer?

Gen-Y Hitch Gooseneck and Fifth Wheel Adapters - GY38FR

  • Fifth Wheel Trailer to Gooseneck Hitch
  • Replaces King Pin
  • King Pin Adapters
  • Adapts Trailer
  • Gen-Y Hitch

This shock-absorbing pin box works with your gooseneck hitch to give a smooth ride while you tow your fifth-wheel trailer. The all-in-1 box has no air bags to refill or small parts to replace. Auto-latch allows for easy hookup. 4.5K pin weight.


Features:

  • 5th-Wheel-to-gooseneck adapter box lets you tow your 5th-wheel trailer with your gooseneck hitch
    • 5th-Wheel pin box replaces the factory pin box on your trailer
    • Coupler attaches to your truck's gooseneck hitch ball
  • Shock-absorbing design ensures a smooth, steady ride
    • Technology functions like a torsion axle to limit transfer of road shock from trailer to truck and vice versa
      • Reduces chucking and rough fore-and-aft motion
      • Limits bounce and jarring up-and-down motion
    • No airbags to maintain and fewer moving parts to repair or replace than with other shock-absorbing solutions
  • Self-latching lever automatically engages when hitch ball is in socket
  • Cable latch allows you to easily uncouple from outside of your truck bed
    • Included cable attaches to lever - just pull on it to disengage the latch
  • Pin weight scale is built in to help you balance your trailer
    • Meter lets you know if your load needs to be adjusted before you tow
  • Cross-shaped holes provide attachment points for safety chains
  • Heavy-duty steel construction
  • Powder coat finish resists wear and corrosion
  • Simple, bolt-on installation
    • Mounts with existing bolts
  • Made in the USA


Specs:

  • Designed to replace Lippert 1621 and 1621 HD 5th-wheel pin boxes
  • Towing capacity: 25,000 lbs
  • Pin weight capacity range: 2,000 lbs - 4,500 lbs
  • Ball size: 2-5/16"
  • 5-Year limited warranty


Notes:

  • In order for the pin box's shock absorption to work correctly, make sure your pin weight is within the pin weight range.
  • Because the Gen-Y Hitch Executive is shorter than the Lippert 1621 or 1621 HD pin box, the clearance between your trailer and tow vehicle during turns might be reduced.

  • Fifth Wheel to Gooseneck Adapter

    Say your truck has a gooseneck hitch for towing your horse trailer, but you want to go camping with your new fifth wheel. You could outfit your truck with a new fifth-wheel hitch that attaches to your existing gooseneck hitch, but that means having to move a heavy, bulky hitch into and out of your truck bed all the time.


    You could also purchase an adapter that bolts onto your trailer's existing pin box. But adding a new component to your setup can keep your pin box from working how it was designed. King pin adapters can create a stiff ride and can even strain your fifth wheel's frame by adding too much height at the connection point.


    A better option is to use this gooseneck-compatible pin box to easily tow your fifth-wheel trailer with your truck's gooseneck hitch. The box replaces your trailer's existing pin box, which means it's designed to act as a part of your trailer instead of simply bolting over your king pin like an adapter does.


    Built-In Shock Absorption for a Smooth Ride

    Executive torsion with cable

    If you've ever towed a fifth-wheel trailer before, you're no stranger to road shock. Driving over uneven terrain can result in a rigid, bumpy ride. And uncomfortable fore-and-aft chucking can occur when you're starting and stopping. When all of the motions combine, the road shock can even potentially damage your truck or trailer.


    This Gen-Y Hitch torsion pin box is designed to absorb road shock at the connection point to create a safe, smooth ride. This is thanks to the internal construction of the box, which is similar to that of a torsion axle.


    Pivot points are built into the Gen-Y pin box adapter. This allows for movement between the box, which attaches to your trailer, and the coupler tube, which connects to the gooseneck hitch ball in your truck bed. When your trailer bounces or jerks, the coupler tube will move accordingly.


    torsion diagram

    Built into the Gen-Y pin box are tubes with inner bars that are surrounded by rubber cords. As the coupler end moves, these inner bars twist inside of the tubes, attempting to follow the coupler's motion. But the rubber cords prevent the bars from twisting too far. And as each bar turns, these cords compress to absorb the rough shock. This means that any shock experienced by your truck can be absorbed before it reaches your trailer, and the shock experienced by your trailer won't get transferred to your truck.


    Easy to Couple and Uncouple

    auto latch and cable

    The Gen-Y pin box adapter makes hooking up your trailer easy thanks to its automatic latch. When your hitch ball moves into the coupler tube, the latch instantly engages. No need to manually close the socket once the coupler is on the ball.


    Disconnecting is fast and easy too. This normally requires that you crawl into your truck bed to access and release the latch. But the Gen-Y adapter box can be disconnected from outside of your truck bed. The included cable attaches to the latch on the coupler's base. Just run the cable up your trailer frame and secure it in a convenient place. When you're ready to disengage the coupler, simply pull the cable to release the ball from the socket. No need to climb into your truck bed.


    Easily Check Your Vertical Load

    scale

    The vertical load, or pin weight, refers to the weight that a fully loaded trailer exerts downward on the hitch ball in the truck bed. Too little vertical load can cause trailer sway and too much can cause poor performance.


    This Gen-Y pin box has a built-in scale so that you can check to see if your vertical load is too high or too low. The top red mark on the scale indicates your maximum vertical load (4,500 lbs). The bottom red mark indicates no vertical load (0 lbs). For the built-in shock absorption to function effectively, the scale's white indicator marker should be within the green section when you hook up your trailer to tow.



    GH-8055AL GenY Hitch Executive Fifth-Wheel King Pin to Gooseneck Converter with Auto Latch Coupler - LCI 1621/1621 HD - 25,000 lbs






    Customer Reviews

    Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Lippert 1621/1621HD - 25K GTW - 4.5K TW - GY38FR

    Average Customer Rating:  4.8 out of 5 stars   (21 Customer Reviews)

    This shock-absorbing pin box works with your gooseneck hitch to give a smooth ride while you tow your fifth-wheel trailer. The all-in-1 box has no air bags to refill or small parts to replace. Auto-latch allows for easy hookup. 4.5K pin weight.

    - GY38FR
    by:

    Shipping was right on schedule it works excellent how had to buy a taller ball wish it was about 3 inches longer in length so I could clear my cab in tight terms



    - GY38FR
    by:

    The hitch just arrived. Shipping was fast and it was in perfect condition. I'll be doing the install on my Momentum m-class 381m later this week and then taking it on a short weekend trip. I'll update my review after all this is done.



    - 325-GH-8045
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters


    Installation was very straight forward, it is heavy so you need something to prop it up for you while you get at least one bolt started in each side. I used the bucket on my tractor to hold it up. I only have one tow in so far for about 50 miles so still early to review. It certainly works as advertised for taking out a lot of the trailer feedback on rough roads, uneven transitions, etc. It is an improvement in ride quality and makes towing a big fifth wheel more comfortable. Necessary? Probably not but it does spoil you a little bit. One problem though that Gen-Y is working on fixing is the ball to pinbox is a little bit longer and I did hit the bed cap at about 60 deg of turn while backing in at an angle. It cleared when I tested it in the flat driveway, but not by much. They are going to come up with a fix. I'm at 7 1/2" clearance from the overhang to the bed caps sitting flat. This is with a '18 Chev Silverado HD 8' bed and a '19 Momentum 351M



    - GY66FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters


    I put a flatbed on my truck so I could load my side by side and go wherever we want. This meant I had to figure out a new way to pull my toyhauler. I had a ford factory fifth wheel prep package with the reese hitch. With the flatbed I cant use this hitch anymore. I was planning to use the Anderson ultimate fifthwheel hitch but would have to change the pin box on my toyhauler as well since it was a flexair and Anderson says not to use a pin box that pivots. Sooo......I started searching for a new pin box and came across this hitch. This solved all my problems! Don't need an Anderson hitch as this pin box will attach to the ball on my flatbed. I called and talked with Chrissy who was super helpful. I ordered the pin box and it arrived yesterday. With some help I got it installed in less than an hour. (2 or 3 person job). It looks great and I'm excited to test it out. Fast shipping and great packaging. Thanks etrailer.com!



    - 325-GH-8045
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters


    Super fast delivery with not one but 3 emails from 3 different people keeping me informed of where my order was and down to the minute of when it was delivered to my door! I will continue to use them for all my RV needs! Thank you for making things happen instead excuses for why it’s not delivered yet! I have heard more “pandemic “ excuses from folks taking advantage of the situation! etrailer stepped up and knocked it out the park! Thank you for everything you have done!



    - GY66FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters


    Very good replacement for a 5th wheel Received in 2 days which was impressive



    - 325-GH-8045
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters


    Love this hitch great quality ! Easy to install as well! Makes pulling my camper much easier!



    - 325-GH-8045
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters


    Great product and amazing customer service. The first hitch was delivered damaged but etrailer resolved the issue and my new I damaged hitch showed up 2 days later.



    - GY66FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters


    I will be installing this tomorrow and am looking forward to how it performs.



    - 325-GH-8045
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters


    Great item easy to install, has worked flawless.



    - GY56FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters


    Loved the way this fit was direct bolt in



    - GY56FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters




    - GY66FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters




    - GY66FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters




    - GY66FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters




    - GY56FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters




    - GY56FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters




    - GY56FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters




    - GY56FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters




    - GY56FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters




    - GY56FR
    by:

    Review from a similar Executive King Pin in Gooseneck and Fifth Wheel Adapters



    21
    21

    Ask the Experts about this Gen-Y Hitch Gooseneck and Fifth Wheel Adapters

    • Goose Neck Pin Box Compatible With A 1621 SHD Pin Box
      According to Lippert the only difference between the 1621 HD and 1621 SHD pin box is the HD has an 18,000 lb capacity and the SHD has a 21,000lb capacity. Since your current pin box is a 1621 SHD I would not recommend the Reese Goose Box 5th-Wheel-to-Gooseneck Item # RP94720 as it only has a capacity of 20,000 lbs. Both, Item # GY38FR and Item # GY66FR, have a 25,000 lb capacity so either would be suitable as far as weight limitations. Both have auto latches and will replace a 1621 SHD...
      view full answer...
    • Replacement Pin Box For Gooseneck Connection On a 2006 Keystone Raptor 3612 Toy Hauler
      For this we will need to confirm the pin box that is currently being used on your 2006 Keystone Raptor 3612. I believe it will be the Lippert 1621 # LC1191191 but you will either need to confirm this with either the sticker/plate on the pin box itself or by using our guide that I linked below in the "4 STEPS TO CHOOSING YOUR FIFTH WHEEL PIN BOX". The Lippert 1621 box will have 5/8" bolt holes that are 7-7/8" horizontally separated and 2" vertically separated. The box is 12" wide and...
      view full answer...
    • Lippert 1716 Fifth Wheel to Gen-Y Gooseneck Hitch for 2015 Elkridge Camper
      Gen-Y # GY38FR is a confirmed fit for your Lippert # LC1324791 fifth wheel hitch on your 2015 Elkridge camper. Gen-Y # 325-GH-8045 is not a confirmed fit due to the offset and hole positions on the side plate of your fifth wheel.
      view full answer...
    • Gen-Y Shock Absorbing Pin Box For 2018 Heartland Fuel 352 Toy Hauler
      It appears that your 2018 Heartland Fuel 352 uses a standard 1621 pin box. You will want to confirm this by either the sticker on the pin box or the bolt hole measurements for the pin box. If you do not have a sticker the bolt holes are going to be 7-7/8" on center from the front holes to the center of the back holes. The vertical holes will have a 2" on center separation. The Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box # GY38FR is the one I recommend for your Fuel with...
      view full answer...
    • Gooseneck Coupler Solution for Trailer with Dexter Pin Box
      Since the only pin box replacement gooseneck adapters out there will work to replace Lippert pin boxes the best solution for your Dexter pin box is a Convert a Ball like part # CAB-C5G which attaches to the king pin and provides a gooseneck coupler.
      view full answer...
    • 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...
      view full answer...
      Image 1 for
    • Determining Which Gen-Y 5th Wheel To Gooseneck Pin Box Fits Keystone Montana
      I would be happy to help you determine which Gen-Y Hitch Shock Absorbing 5th Wheel To Gooseneck Pin Box will be correct for your Keystone Montana 5th wheel trailer, but you will first need to determine which pin box is installed on your trailer. To do this you will need to look on the pin box for a four digit model number such as 1116 or 1621. If you cannot find the model then just send me a picture of the sticker on the pin box that has the serial number and item number so I can identify...
      view full answer...
    • Recommended 5th Wheel Trailer To Gooseneck Hitch Adapter For Fabex 730 Pin Box
      I do have a few options for you, but there is not a Goose Box or Gen-Y gooseneck pin box that will be an exact replacement for your Fabex 730 pin box. The first option is using the Gen-Y # GY38FR. You will need to drill a few holes in the brackets to match your trailer, but as long as you don't drill a bunch of extra holes or drill into any existing holes you will not void the warranty of the pin box. This is quite a bit of work so I recommend having a professional do this for you if...
      view full answer...

    Do you have a question about this Gooseneck and Fifth Wheel Adapter?




    • Why etrailer.com?

      At etrailer.com we guarantee:
    • Highest quality gooseneck and fifth wheel adapters for the best price.

      Our Lowest Price Pledge ensures you will never overpay for the parts you need.
    • Real product know-how.

      We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
    • Most detailed, accurate gooseneck and fifth wheel adapter information available.

      Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
    • Installations, made easy.

      We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
    • Fast shipping.

      Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
    • Personalized service for life.

      We provide one-on-one, personalized service from the ordering process through the life of your product.
    • Trusted since 1946.

      We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
    • Returns Policy

      Need to return an item? No problem. Please read our Returns Policy for more information.

    Info for this part was:

    Employee Lindsey S
    Edited by:
    Lindsey S
    Employee Jameson C
    Expert Research:
    Jameson C
    Employee Chris R
    Video Edited:
    Chris R
    Employee Alexander C
    Written by:
    Alexander C
    Employee Mike S
    Updated by:
    Mike S
    Employee Michael B
    Installed by:
    Michael B
    Employee Clayton O
    Test Fit:
    Clayton O

    At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.