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  1. Fifth Wheel King Pin
  2. MORryde
  3. Lippert 1621
  4. Lippert 1621HD
  5. 21000 lbs GTW
  6. Upgraded Pin Box
MORryde Cushioned 5th Wheel Pin Box for Up to 11.5K Trailers w/ Lippert 1621 and 1621HD

MORryde Cushioned 5th Wheel Pin Box for Up to 11.5K Trailers w/ Lippert 1621 and 1621HD

Item # MR64VR
Our Price: $799.99
You Save: $201.82
Fifth Wheel King Pin
Shipping Weight: 190 lbs
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Upgrade the factory pin box on your fifth-wheel trailer to this cushioned model that dampens road shock and reduces back-and-forth chucking for a more relaxed towing experience. Unlike air bags, the internal rubber spring requires no maintenance. 1-800-940-8924 to order MORryde fifth wheel king pin part number MR64VR or order online at Free expert support on all MORryde products. Great prices and Fastest Shipping for MORryde Cushioned 5th Wheel Pin Box for Up to 11.5K Trailers w/ Lippert 1621 and 1621HD. Fifth Wheel King Pin reviews from real customers.
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  • Reviews (138)
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MORryde Fifth Wheel King Pin - MR64VR

  • Lippert 1621
  • Lippert 1621HD
  • 21000 lbs GTW
  • Upgraded Pin Box
  • MORryde
  • Reduces Chucking
  • Fixed Turret

Upgrade the factory pin box on your fifth-wheel trailer to this cushioned model that dampens road shock and reduces back-and-forth chucking for a more relaxed towing experience. Unlike air bags, the internal rubber spring requires no maintenance.


  • Cushioned pin box replaces your factory model for a smoother towing experience
    • Provides a more relaxed and comfortable ride when hauling your trailer
    • Limits the stress put on your trailer during long road trips
  • Rubber shear spring absorbs and dampens road shock and vibration
    • Reduces back-and-forth chucking while towing over uneven roads
    • Helps eliminate jerking when starting and stopping
    • Requires no maintenance, unlike internal air bags
  • Internal glide pads allow the skid plate to shift forward and backward and side to side
    • Allows for smoother maneuvering
    • Also helps to reduce chucking
  • Bolt-on installation no drilling required
    • King pin sits in same location as factory king pin
  • Made in the USA


  • Application: 5th-wheel trailers with up to 11,500-lb GVWR (maximum loaded weight)
    • Designed to replace Lippert 1621 or 1621HD pin boxes
  • Pin box weight capacity: 21,000 lbs
    • Do not exceed the GVWR that is listed in your trailer's manual
  • Spring capacity (for optimal ride): under 11,500 lbs
  • Fore-and-aft movement of skid plate: up to 3"
  • Side-to-side movement of skid plate: up to 1-1/2"
  • 3-Year limited warranty (or 70,000 miles)

Rubber Shear Spring Absorbs and Dampens Road Shock

Most standard pin boxes are constructed of steel and are built with the sole purpose of connecting your fifth-wheel trailer to your tow vehicle. There is no cushioning built in, so a factory pin box doesn't do anything to provide a comfortable ride when you're hauling your fifth-wheel trailer.

This MORryde pin box, however, is built with an internal rubber spring that absorbs road shock and vibration at the connection point. So if you're driving on unpaved roads or uneven pavement, this pin box will prevent any road shock and vibration you encounter from transferring from your tow vehicle to your fifth-wheel trailer and vice versa. In other words, the rubber spring takes the brunt of the impact so you and your towing setup don't have to. And because this unit uses a rubber spring instead of an internal air bag like some other upgraded pin boxes, there's no maintenance required.

Although this pin box can tow up to 18,000 lbs, the internal rubber shear spring is optimized for trailers that are under 11,500 lbs. A rubber spring built for 18,000-lb trailers would be too stiff to provide any cushion for a trailer under 11,500 lbs, while a rubber spring built for trailers under 11,500 lbs would be too flexible for a 18,000-lb trailer.

Less Chucking for a Better Ride

Chucking, the back-and-forth jerking movement you feel in your cab when towing, occurs most frequently during starts and stops and while making turns. A typical, factory pin box creates a rigid connection without much give. So when a harsh stop occurs, all of the trailer's forward momentum gets forced through that stiff connection, slamming the king pin in the hitch and jerking your truck around.

To combat this, glide pads are built into the MORryde pin box that allow the skid plate to shift up to 3" forward and backward and 1-1/2" side to side to compensate for some of that violent motion so that you don't have to feel it in your cab.

Bolt-On Installation

How To Install MORryde Pin Box

This MORryde pin box is a direct replacement for your existing Lippert 1621HD pin box, so the installation is very straightforward. After removing your old pin box, the MORryde can be mounted into place using the same hardware and bolt holes used by the factory pin box.

MORryde Pin Box Bolt-On Installation

Because of the weight of the unit, you'll want a couple of friends to help you lift it into place during installation. Once the hardware is securely bolted down, you'll be ready to go.

RPB72-1621HD-03 More Ride Fifth Wheel Rubber Pin Box Replacement for Lippert 1621 and 1621 HD - Under 11,500 lbs GVWR

Installation Details MR64VR Installation instructionsAlternate Instructions MR64VR Installation instructions

Customer Satisfaction Score:

Customer Reviews

MORryde Cushioned 5th Wheel Pin Box for Up to 11.5K Trailers w/ Lippert 1621 and 1621HD - MR64VR

Average Customer Rating:  4.8 out of 5 stars   (138 Customer Reviews)

Upgrade the factory pin box on your fifth-wheel trailer to this cushioned model that dampens road shock and reduces back-and-forth chucking for a more relaxed towing experience. Unlike air bags, the internal rubber spring requires no maintenance.


King pin does what it suppose to, less jarring on rough roads and when stopping and starting.


Bolted Right up. Sure does take out the chucking to only a little bump here and there. Without this device, my coffee cup would hop out of the holder.

I bought and had one for my previous camper as well. I won't be without.


Just what I needed for my fifth wheel, haven’t pulled it yet. My friends all have them and say it takes the jerk out. Wife has neck problems, so I’m sure it will help.Shipping was quick and packaging was excellent.




I have not installed this part on my 2021 momentum 395MSR yet, but it was received in perfect condition. I had the same pin box on my Solitude390RKR and loved the way it handled. If the part does not perform as expected once installed and after I have some miles behind it i'll update my review.


This cushioned pin box is definitely worth the upgrade. Chucking is greatly reduced (There's no getting totally away from it) and the frequency of the chucking is tempered making the ride much more pleasant. There are times when you forget your towing it's so smooth on decent stretches of road. Delivery was quick (3 days early as a matter of fact) and driver dropped it in my garage. Plus the fitment was perfect, bolted on with no problem. Entire experience was good !!


After talking to your customer support staff and picking out the right pin box, I ordered it the next day on line. Shipping was fast and it arrived in good shape. The Pin box came with all the bolts and Hardware, it took about an hour to install on my 2024 Momentum M class RV. I took it for a 2-hour road trip and you cannot believe the difference in the ride. I am never disappointed when I deal with etrailer.


Fit perfect on my Grand Design Reflection 303RLS. Will be taking a long trip very soon and will let you know how it performs.


While not yet installed thought it worth commenting on the experience thus far - in a word “excellent”. Package was well packaged, the transporter was awesome and kept us informed of his delivery schedule, given the weight of the shipment.
Bottom line, the process to date has been outstanding and would highly recommend using etrailer for your rv needs.


The hitch is great. The fact that etrailer only offered one shipping method was disappointing. Upon placing the order, requested a faster more reliable shipping method. This was not an option. The item arrived the Thursday after the estimated Monday delivery. Tracking proved that the item sat in warehouse depots for 11 of the 14 shipping days. This was very frustrating.


Installation instructions were very good! It fits perfectly.
Beware when ordering a part this heavy, the shipper only delivers to the curb.


(Mrs. Brinkley) Our New Brinkley Z2900 couldn't be happier with Her new Pin Box from MORyde, the Chucking is a lot less noticeable and my F350 doesn't have to take the punishment either. Thank you etrailer and your support in helping me find the appropriate pin box need in our application. hope this helps others with the he most obvious decision if they want to improve their ride.


Towing our 36' toy hauler with this pin box is much less jarring than the original pin box. It definitely isolated the movement of the trailer from the truck.


This is an excellent pinbox and hopefully I’m saving some wear and tear on my trailer. We have a Superglide auto slide hitch and the Morryde adapter sure beats the capture plate I had before. No more chancing a broken foot when it accidentally falls off.


Freaky fast delivery!! Lol you must be eating jimmy John's.
I can confirm it fits a 2010 jayco eagle. 351 rlsa.
Although it's a 11k to just uner 15k gross the 14k to 18k rating shuld do well.
Thanks for the chat input in researching my choices.


Love the new pin box. It has performed as advertised and provides a much smoother ride!


Ordered the Morryde pin box to replace the Rhino pin box on a 2022 Riverstone Reserve. Shipping from Etrailer was right away but had a little delay with the shipment because the semi truck could not get up my road. Taking off the Rhino pin had a little trouble as one of the bolts was cross threaded, which I have read from others also having the same issue. The Morryde came with all the hardware and with two people had it changed out in about an hour. Took it for a small drive and really seems to make a big difference, will get it out for a longer drive soon on my next trip. The new pin box went in the same position as the old one and did not change my level or bed clearance.


The king pin box was delivered in perfect shape. Metal banded, strapped to a wood pallet in a card board box. Upon installation it fit perfect.
The customer support was excellent throughout the whole process from the ordering, making sure the correct king pin box was selected, to follow up, due to the long wait. The long wait was due to Covid 19. I am a happy camper and cannot wait to try it out on the road soon. I will send a follow up review. Thanks etrailer and especially Christina J. she answered all my questions and followed up on time every time.


MORryde makes a fantastic Pinbox! I have been a e-trailer customer many times over and always find the customer care from start to finish is great. We recently purchased a 2024 Brinkley Z3100 which came with a Rhino Pinbox.
I hated it! Lots of chucking. Our other 5th wheel a King of the Road has the MORryde on it and pulls like a dream. I had asked the dealer at time we made our new purchase about putting on the MORryde on it and I was told it could not be done.
Don’t ever take just one persons word as gospel and further looking into it, there is definitely a conversion available and thanks to the folks on my Brinkley Owners page and the folks at e-trailer, I ordered it and it is a perfect fit. Definitely takes 2 guys to put it on but I’d say its a 2-3 hour job.
Our install took us about 5 hours as one of the original bolts with the Rhino was cross threaded. Can’t wait to get out and tow with our new MORryde!! They are the best!! Thanks e-trailer for your help!


So far 5 stars. I have not towed with it yet. Install took about 2 hrs and not to bad. Pin box weighs probably double the LCI. Very sturdy and is expected really help the towing experience.


This hitch is awesome. It works much better than expected and makes towing our 5th wheel a very pleasant experience.


Great ride when pulling my camper takes out almost all the chucking. Highly recommended.


Replaced the stock Rotoflex pin box on my 2020 GD Momentum toyhauler. What a difference! No more chucking and the ride is so smooth it's easy to forget I'm pulling 20K lbs. Easy to install with a little help.


All was good except it was short on hardware. 8 bolts, 10 washer 5 nuts, 6 lock washers. I needed 10 of everything. Rino box's have 6 bolt that go into welded nuts and only 4 bolts with nuts. Even using those I'm still two short. 50 miles to a hardware store in search of 3/4 nuts.
Sad day.

Show More Reviews

See what our Experts say about this MORryde Fifth Wheel King Pin

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    King pins do wear out over time which causes them to get slightly smaller in size. Especially if the hitch they are used with allows more movement like your Pro Series hitch. So the MORryde part # MR64VR would work great and you have nothing to worry about. This would create a tighter fit like you mentioned as well.
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Do you have a question about this Fifth Wheel King Pin?

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 Jeff D
Installed by:
Jeff D
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Kathleen M
Updated by:
Kathleen M
Employee Leah S
Updated by:
Leah S
Employee Wilson B
Updated by:
Wilson B
Employee Jonathan Y
Video by:
Jonathan Y
Employee David F
Video by:
David F
Employee Mike S
Written by:
Mike S
Employee Clayton O
Test Fit:
Clayton O
Employee Kevin C
Test Fit:
Kevin C

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