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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 11.5K to 14K Trailers w/ Lippert 1621 and 1621HD

MORryde Cushioned 5th Wheel Pin Box for 11.5K to 14K Trailers w/ Lippert 1621 and 1621HD

Item # MR74VR
Our Price: $799.99
You Save: $563.30
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 MR74VR or order online at Free expert support on all MORryde products. Great prices and Fastest Shipping for MORryde Cushioned 5th Wheel Pin Box for 11.5K to 14K Trailers w/ Lippert 1621 and 1621HD. Fifth Wheel King Pin reviews from real customers.
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MORryde Fifth Wheel King Pin - MR74VR

  • 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 11,501-lb - 14,000-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): 11,501 lbs - 14,000 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 range from 11,501 to 14,000 lbs. A rubber spring built for 18,000-lb trailers would be too stiff to provide any cushion for an 11,500-lb trailer, while a rubber spring built for 11,500-lb trailers would be too flexible for a 18,000-lb trailer. To get the best results from this cushioned pin box, the sweet spot is a trailer in the 11,501-lb to 14,000-lb range.

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 Lippert 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-04 More Ride Fifth Wheel Rubber Pin Box Replacement for Lippert 1621 and 1621 HD - 11,501 - 14,000 lbs GVWR

Installation Details MR74VR Installation instructionsAlternate Instructions MR74VR Installation instructions

Customer Satisfaction Score:

Customer Reviews

MORryde Cushioned 5th Wheel Pin Box for 11.5K to 14K Trailers w/ Lippert 1621 and 1621HD - MR74VR

Average Customer Rating:  4.8 out of 5 stars   (136 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.


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 !!


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.

Todd T.


The MORryde Pin box has performed flawlessly and has made significant difference in our ride and towing. We tow tofrom Florida from Canada, the pin box has made the trip so much nicer and smoother

Etrailer Expert

Mike L.


@ToddT Given the condition of the highways in many states, we're sure it's a very welcome improvement! Glad to hear you're happy with your replacement pin box!


Although much heavier than the Lippert 1621, with two people, it was still manageable to install. Shipping was quick and it arrived undamaged.


The pin box all but eliminates the jerking that we were experiencing previously.


Worked as expected.


Delivered quickly and the shipping company was super friendly. Haven’t towed with it yet but I haven’t read a bad review yet


I ready like the ride it has produced. I was skeptic about much it could improve the ride, but Both my wife and I were extremely surprised on how it changed the ride. I'm glad I took the plunge to purchase this pin box. This will allow for longer rode trips in the future.


Item fit as described, delivery was quick and professional.


This is the second time I ordered something on the big side, thanks for great service.


Good quality. Easily installed. Product was well worth the money. Would buy this again. Thanks so much








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.


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.


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.


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.


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.


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

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
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Employee Jameson C
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