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  1. Fifth Wheel King Pin
  2. Gen-Y Hitch
  3. Lippert 1621
  4. Lippert 1621HD
  5. 18000 lbs GTW
  6. Absorbs Road Shock and Reduces Chucking
Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621 and 1621 HD - 18,000 lbs - 3.5K TW

Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621 and 1621 HD - 18,000 lbs - 3.5K TW

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Fifth Wheel King Pin
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Gen-Y Hitch Lippert 1621,Lippert 1621HD Fifth Wheel King Pin - 325-GH-8040
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This shock-absorbing pin box provides a smooth, safe ride while you tow your fifth-wheel trailer. The all-in-1 box has no air bags to refill or small parts to replace. The weight scale lets you monitor your vertical load. 3.5K pin weight. 1-800-940-8924 to order Gen-Y Hitch fifth wheel king pin part number 325-GH-8040 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 Pin Box - Lippert 1621 and 1621 HD - 18,000 lbs - 3.5K TW. Fifth Wheel King Pin reviews from real customers.
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  • Reviews (6)
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Gen-Y Hitch Fifth Wheel King Pin

  • Lippert 1621
  • Lippert 1621HD
  • 18000 lbs GTW
  • Absorbs Road Shock and Reduces Chucking
  • Upgraded Pin Box
  • Gen-Y Hitch

This shock-absorbing pin box provides a smooth, safe ride while you tow your fifth-wheel trailer. The all-in-1 box has no air bags to refill or small parts to replace. The weight scale lets you monitor your vertical load. 3.5K pin weight.


Features:

  • 5th-Wheel king pin box upgrades the existing pin box on your 5th-wheel trailer
    • King pin inserts into your truck's 5th-wheel hitch
  • 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
  • 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
  • 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: 18,000 lbs
  • Pin weight capacity range: 1,500 lbs - 3,500 lbs
  • 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.

Calculated Tongue Weight Executive Tongue Weight Capacity Required
500-1,500 lbs 2,000 lbs
1,501-3,000 lbs 3,500 lbs
3,001-4,000 lbs 4,500 lbs
4,001-5,000 lbs 5,500 lbs
5,001-6,000 lbs 6,500 lbs
6,001-7,000 lbs 7,500 lbs
7,001-8,000 lbs 8,500 lbs

Built-In Shock Absorption for a Smooth Ride

Executive torsion

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. This allows for movement between the box, which attaches to your trailer, and the king pin, which connects to the fifth-wheel hitch in your truck bed. When your trailer bounces or jerks, the king pin 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 king pin moves, these inner bars twist inside of the tubes, attempting to follow the pin'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.


Easily Check Your Vertical Load

Executive scale

The vertical load, or pin weight, refers to the weight that a fully loaded trailer exerts downward on the hitch 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 mechanical scale so that you can check to see if your vertical load is too high or too low. The highest arrow on the scale indicates your maximum vertical load (3,500 lbs). The lowest arrow indicates no vertical load (0 lbs). A vertical load of at least 1,500 lbs is recommended for the built-in shock absorption to function effectively. This means that the scale's white indicator marker should be between the highest arrow and the middle arrow when you hook up your trailer to tow.



GH-8040 GenY Hitch Executive Fifth-Wheel King Pin Box with Torsion Shock Absorption - LCI 1621/1621 HD - 18K

Item # 325-GH-8040






Customer Reviews

Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621 and 1621 HD - 18,000 lbs - 3.5K TW - 325-GH-8040

Average Customer Rating:  4.8 out of 5 stars   (6 Customer Reviews)

This shock-absorbing pin box provides a smooth, safe ride while you tow your fifth-wheel trailer. The all-in-1 box has no air bags to refill or small parts to replace. The weight scale lets you monitor your vertical load. 3.5K pin weight.

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Review from a similar Executive in Fifth Wheel King Pin


Thanks again for the excellent, professional, knowledgeable customer service. It is refreshing to be able to talk to someone who is friendly and glad to help with specialized needs such as racks, hitches, etc. You won't find that kind of service in a lot of places. That is why I recommend etrailer to all of my friends.
The 2022 Hyundai Santa Cruz is getting very popular and lots of people are wondering when a truck rack, or ladder type rack will be available for it. It is a great truck but the roof does not allow larger items like longboard surfboards or SUP boards or kayaks to be installed on the roof. There just is not enough room for standard surfboard racks to be spread out long enough to safely carry these longer items. Thule says 27 1/2" is the standard distance between bars but all of us surfers, windsurfers know that one needs more distance between the crossbars to carry a 9' surfboard or greater. I was going to use the Thule racks I just ordered on my 2022 Hyundai Santa Cruz, but it seems there is just not enough room on the roof to get the distance needed. Plus, the roof is kind of rounded toward the front so the front bar will be down at an angle. I ended up putting the rack on my Hyundai Tucson. So, there is a need out there for a different system for the Santa Cruz. Any advice on a roof rack for the Santa Cruz would be appreciated. Maybe I am looking at it wrong and I don't need as much room on the roof as I think to transport a longboard. I know there is a lot of discussion on this subject on the Santa Cruz forums online. I use a 9', and 10' longboard (surfboard).


Comments
I see that this kit that you just purchased is a confirmed fit for your 22 Hyundai Santa Cruz, as long as you have flush mount rails that run front to back. The square bars item # TH712300
Thule SquareBar Evo Crossbars - Steel - 50" Long - Qty 2
$110.95
you ordered are 1.25 inches wide and 7 eighths of an inch tall, so this is compatible with the maximum dimensions needed for the item # INA744
Inno Board Locker Surfboard Carrier - Locking - Clamp On - 3 Shortboards or 2 Longboards
$197.99
. You can also use these straps, item # TH531
Thule Express Surf Strap - Stretchable Tie-Down - Qty 2
$38.95
to hold your long boards down.
-- Etrailer Expert Sierra K - 12/28/2021

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Review from a similar Executive in Fifth Wheel King Pin


This is the 2nd large order (hitch components & roof rack) I placed within 2 weeks. Each was processed quickly and arrived ahead of the projected delivery date. Further, the website was extremely easy to use with excellent configuration and installation articles and videos. I dealt with Quinn, a phone rep, who did a great job answering my questions and configuring the equipment. I highly recommend doing business with etrailer.



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Review from a similar Executive in Fifth Wheel King Pin


This pinbox fixed two problems I was having. I can know turn 90 degrees and I have up to 10 inches of clearance from top of bed rail to 5th wheel overhang



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Review from a similar Executive in Fifth Wheel King Pin


Etrailer is an awesome website. They are very responsive to questions. Installation was simple and straightforward. I have not towed with this new pinbox as my rig is bedded down for a long winter nap in the northeast.



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Review from a similar Executive in Fifth Wheel King Pin


perfect fit, super snug ,so easy



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Review from a similar Executive in Fifth Wheel King Pin


Exactly what I needed at a great price! Great customer service and super fast shipping!



by:

Review from a similar Executive in Fifth Wheel King Pin


Great packaging!



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Review from a similar Executive in Fifth Wheel King Pin




by:

Review from a similar Executive in Fifth Wheel King Pin




by:

Review from a similar Executive in Fifth Wheel King Pin




by:

Review from a similar Executive in Fifth Wheel King Pin



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Ask the Experts about this Gen-Y Hitch Fifth Wheel King Pin



  • Can Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box Fit with Pull Rite SuperLite 2600
    Yes the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621 and Lippert 1621 HD # 325-GH-8040 will work with your Pull Rite Superlite 2600.
    view full answer...
  • Minimum Pin Weight For Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box
    The Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box # 325-GH-8040 you referenced has a maximum pin weight of 3,500 lbs and is recommended that there is at least 2,000 lbs of pin weight for the shock absorption to properly work. It's designed to replace Lippert 1621 and Lippert 1621 HD pin boxes. So if your trailer has 1621, or 1621 HD pin box it will work, but you may not get all the benefits from the shock absorption since the pin weight is 1100 lbs. I attached a short review video for...
    view full answer...
  • What are Dimensions of Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box part # 325-GH-8040
    In general the height between the fifth wheel pin boxes aim for the same figures so that they don't cause the trailer to sit drastically different. I attached a dimension picture for the # 325-GH-8040 for you to check out and compare to what you have now though.
    view full answer...
    Image 1 for Image 2 for
  • Gen-Y Pin Box Compatibility With Andersen Ultimate 3220 Fifth Wheel Hitch
    The Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621 and 1621 HD - 18,000lbs - 3.5K TW has a standard king pin so you will have no issues coupling to your Andersen Ultimate 3220 Fifth Wheel Hitch.
    view full answer...
  • Does Gen-Y Hitch 325-GH-8040 Replacement Pin Box Have a Minimum Tongue Weight it Will Work With
    The Gen-Y Shock Absorbing Pin Box, part # 325-GH-8040 has a shipping weight of 126 lbs. Once the shipping packaging is removed, it'll weigh about 115 lbs. According to Gen-Y, the replacement pin box will work great for a 1625 lb fifth wheel pin weight, there isn't a minimum tongue weight. I've linked you to a product description video that you might find helpful.
    view full answer...
  • Is Item # 325-GH-8040 Compatible With A 2021 Highland Ridge Roamer 354 MBH
    The 2021 Highland Ridge Roamer 354 MBH comes with the Lippert 1621 or 1621HD pin box. Item # 325-GH-8040 is compatible and would not require any additional adapters to install it. It is as simple as removing your current pin box and bolting in the new one.
    view full answer...
  • Is The Gen-Y Shock Absorbing Pin Box A Factory Approved Replacement For Lippert Pin Boxes
    The Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box # 325-GH-8040 is an approved replacement for 1621 and 1621HD pin boxes.
    view full answer...
  • What is the Width of the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621 # 325-GH-8040
    The width of the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621 and 1621 HD - 18,000 lbs - 3.5K TW # 325-GH-8040 is 12". The best way to determine if that will be a fit to replace your current pin box on your 2020 Sandpiper is to find the pin box number on the current pin box. In order to determine what type of pin box you have on your Sandpiper 5th Wheel Trailer, you will need to locate the part number of the pin box. This number is usually located somewhere on the pin...
    view full answer...
  • Recommended Cushioned Replacement for Lippert 1116 OEM Pin Box
    The Gen-Y # 325-GH-8040 Replacement Pin box is only compatible with the Lippert 1621 and 1621 HD pin boxes. I'd recommend going with the Trailair Air Ride Pin Box, part # LC155943. This pin box uses both an air bag and a shock absorber to mitigate the chucking, banging and rattling caused by excessive up and down and side to side movement of the pin box in the 5th wheel hitch making for a more comfortable (not to mention peaceful) ride. Gen Y doesn't offer the 325-GH-8040 in a version...
    view full answer...
  • Will Gen-Y Pin Box bolt to Rockwood 2881S Trailer, and Will Gen-Y pin box connect to Anderson Ult.
    The Gen-Y Pin Box # 325-GH-8040 can use a 1621 or 1621HD bolt pattern to bolt to the mounting wings on your Rockwood 2881S trailer. You will need to determine the bolt pattern or the model number of the old pin box on your Rockwood now. Sometimes 1621 or 1621HD will be stamped into your existing pin box. It might also be found on the manufacture's specification plate attached to the trailer. These are the most common patterns and will probably fit on your trailer. I have attached an article...
    view full answer...
  • Cushioned Pin Box to Replace Lippert 1621 for use With PullRite Super Glide
    There is an option for a cushioned pin box you can use with your PullRite Super Glide, but based my research there aren't any compatible capture plates for the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621 and Lippert 1621 HD - 18,000 lbs # 325-GH-8040. So you would need to go a different direction and also get a new capture plate designed for use with the specific pin box. The one I know will work for you as a replacement for the Lippert 1621 is the Trailair Flex Air 5th...
    view full answer...
  • Comparison Between Trailair Flex Air and Gen-Y Executive Replacement Pin Boxes
    Because it's lighter, less expensive, has fewer moving parts and is mechanically less complicated I'd recommend going with the Gen-Y # 325-GH-8040 shock absorbing pin box versus a Trailair Flex Air like part # LC328492. The Trailair features a pin box that cushions most of the bouncing and jarring forces. Over time, air bags can become brittle and puncture while the Gen-Y uses technology that's similar to torsion axles, using internal bumpers that limit bounce and help to isolate the tow...
    view full answer...
  • How Much Does the Gen-Y Shock Absorbing 5th Wheel Pin Box Weigh
    The Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621 and 1621 HD - 18,000 lbs - 3.5K TW # 325-GH-8040 weighs 125-lbs. However, after speaking with the tech and warranty department over at Lippert, the Gen-Y pin boxes are not "endorsed" for use on a Lippert chassis. I don't recommend this for a new coach with the warranty still in tact for that reason. If you wanted to replace your Lippert 1621 pin box with a pin box that would give you an upgraded ride quality then I recommend...
    view full answer...
  • Gen-Y Hitch Pin Box Compatibility With A Demco Hijacker Autoslide 5th Wheel Hitch
    Yes, the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621 and 1621 HD - 18,000 lbs - 3.5K TW Item # 325-GH-8040 is compatible with a Demco Hijacker Autoslide hitch like the # DM8550024.
    view full answer...
  • Taller Fifth Wheel Hitch that Fits 2022 Ford F-350 with OEM Rail Kit
    The Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621 and 1621 HD # 325-GH-8040 that you referenced was not designed to give additional vertical height over a standard pin box so it would not necessarily be the solution you need. Instead you might see if you can lower your current pin box in the mounting brackets to give you additional height. Or another option would be to go with a taller fifth wheel hitch like the B and W Companion part # BWRVK3300 which can be used at a...
    view full answer...
  • Comparing Gen-Y Hitch Gooseneck Pin Box 325-GH-8040 and GY66FR
    The Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621 and Lippert 1621 HD - 18,000 lbs # 325-GH-8040 you were looking at is rated for 18000lbs trailer weight and 3500lbs pin weight, so this will likely be the best option for you as long as your current pin box is a Lippert 1621 or 1621HD. If your loaded trailer has a pin weight that exceeds the 3500lb maximum when loaded stepping up to the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Lippert 1621/1621 HD - Auto...
    view full answer...
  • Replace RotoFlex with Pin Box That Stays Away From Bed Rails
    Most standard pin boxes will not make a 90 degree turn in anything less than an 8 foot truck bed, but that is due to being too close to the cab - not the rails. You mentioned you wanted to replace the Rota-Flex with the Gen-Y hitch. Your old pin box and your new pin box must have to be the same bolt pattern (Like #1621) which dictates how big those mounting wings are. I don't think this is a solution to your need. This will just be another pin box that does not fit. The best solution...
    view full answer...
  • How To Use Gen-Y Pin Box With PullRite SuperGlide 5th Wheel Hitch 2714
    The Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box # 325-GH-8040 is going to be what you want. This is a direct replacement for the Lippert 1621 Pin Box. The Gen-Y has a built-in shock absorber that limits bounce and jarring up-and-down motion. This has a towing capacity of 18,000 lbs and a pin weight capacity of 3,500 lbs. My contact at Gen-Y confirmed that it will work with the Pullrite slider hitch, however, you may need Gen-Y Capture Plate for PullRite 5th Wheel Sliding Hitches # GY98FR...
    view full answer...
  • How Can I Identify My 5th Wheel Pin Box.
    If you can't find the labels or stickers, the manufacturer of your 5th wheel should be able to tell you which pin box you have if you provide them with the VIN. If they are unable to help I will also link some guides to help you identify your 2008 Extreme Megalite 28SF pin box. Some of the more common OEM parts are the Lipper 1621/1621HD and the 1716 pin box. If you have either of these then I recommend the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1116 and 1716 - 18,000...
    view full answer...
  • Replacing A MORryde Pin Box With A Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box
    To know what pin box will replace your MORryde pin box you'll first need to identify the bolt pattern. To do this you can follow the steps in the attached pin box identification article. This article will show you the different styles of pin boxes and from there the different bolt patterns based on their spacing measurements. Some of the most common bolt patterns used by manufacturers are the 1621, 1116, or 1716. The Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box # 325-GH-8040 will fit...
    view full answer...
  • Replacement Bearings and Seal for Dexter #11 Torflex Axle
    According to my research you have a Torflex #11 axle which means you should be able to use the Bearing Kit # BK3-300. This kit has the inner bearing # 25580, outer bearing # LM67048, and a grease seal with a 2.250 inner diameter. If you pull your hubs you should be able to confirm on your end that this is what you have. Attached is a video where we show how to do the installation as well.
    view full answer...
  • Will Demco Hijacker Autoslide 5th Wheel Hitch Work with Gen-Y Hitch Shock Absorbing Pin Box
    The Demco Hijacker Autoslide 5th Wheel Trailer Hitchs like part # DM8550035 are compatible with the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Boxes like part # 325-GH-8040 which fits a Lippert 1621 pattern. That said, you will need an adapter for this, the Gen-Y Capture Plate part # GY98FR but that will be all. This is a great combo which provides both cab clearance and a cushioned ride. Please note, in order to use the Demco Hijacker on a 2020 Chevrolet Silverado 3500 with OEM Prep Pkg...
    view full answer...
  • Will the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box Cause the Trailer To Be Nose High
    The Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box part # 325-GH-8040 will have dimensions similar to the Lippert Trailair RotoFlex so you should not have an issue with the trailer not being level if you did not before. That said, I have attached a photo with the dimensions of the pin box for you if you want to confirm beforehand. If the trailer was nose high after installing the pin box and making your adjustments, there is always the option to raise the trailer like with the Dexter Trailer...
    view full answer...
    Image 1 for
  • B&W Companion 5th Wheel Trailer Hitch w/ Slider with Sidewinder or Revolution King Pin Box
    If you have the Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches, # BWGNRK1116-5W and the B&W Companion 5th Wheel Trailer Hitch w/ Slider, # BWRVK3400-5W you can not use a rotating turret type king pin such as the Revolution/Sidewinder. B&W clearly states that this fifth-wheel trailer hitch is not compatible with Sidewinder or Revolution king pins. and to not use any device that changes the pivot point of your trailer's king pin with this hitch. You will 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 Lindsey S
Edited by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Written by:
Alexander C
Employee Michael B
Installed by:
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