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  1. 5th Wheel Pin Box
  2. MORryde
  3. Lippert 1621
  4. Lippert 1621HD
  5. Upgraded Pin Box
  6. Reduces Chucking
MORryde Cushioned 5th Wheel Pin Box for Up to 11.5K Trailers w/ Lippert 1621 and 1621HD
MORryde

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

Part Number: MR64VR
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5th Wheel Pin Box
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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 5th wheel pin box part number MR64VR or order online at etrailer.com. 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. 5th Wheel Pin Box reviews from real customers.
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MORryde 5th Wheel Pin Box - MR64VR

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


Features:

  • 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


Specs:

  • 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:  4.7 out of 5 stars   (192 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.

by:

Dramatically reduced chucking as hoped. There is more start/stop slop than I had expected but I'm guessing that is due to my trailer being at the top of the weight rating for the rubber block. I need to put a camera on it to verify my theory. All in all a huge improvement.



by:

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



by:

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.



by:

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.



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by:

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



by:

I ordered this for my Grand Design 337 5th wheel to help reduce the chucking. I will start this with the order. The Pin Box arrived in a very beat up box. After examining the unit I found that one of the bolt fins was bent about 1" inward, the carrier must have dropped this from a truck. I called E-Trailer support and spoke with a very nice gentleman who took my info and said this does happen occasionally. He set up an advance replacement and prepaid return which shipped 2 days later. The new one arrived in good shape.
I installed the unit today. I am extremely surprised how easy it went replacing the King Pin box. The MORryde box is heavy, using the bed of the truck and some 6x6's I got it the right height and really easy. I found cleaning the bit of rust the housing that the MORryde sits in and a little WD40 made this easier.
I have not connected to the hitch and pulled the camper yet but have heard great things about this unit. I have the PullRite Auto Slide hitch so I had to install the adaptor as well.
Many thinks to Etrailer for taking care the shipping issue and getting me a working unit, well done.



by:

Entirely better experience towing, my wife and I picked up our 1st 5th wheel toyhauler camper and towing it home it started jerking back n fourth, not knowing what the hell was going on she wanted to return it. I did some research and found this Moryde cushioned pin box and it’s super smooth. We’re both very happy and feel a lot more comfortable towing places.



by:

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.



by:

This kingpin box was promptly delivered after ordering. We installed the new Moryde today and it went on very easily. Although it is very heaving, I used my tractor with a front end loader to remove the old pin box and install the new which really made it very easy. I hooked up to my truck to test the level and everything was perfect. Very satisfied! Thank you etrailer.



by:

So far this is a welcome upgrade. Took it on a short trip over some rough road that normally triggers chucking on my F-250. This pinbox prevented it which was a welcome change. I’m looking forward to some longer trips.

Installation was straightforward. Removed the old pinbox which was fairly easy. Installing the new pinbox would’ve been a challenge had my buddy not had a forklift attachment for his tractor. I don’t know the exact difference in weight between the old Lippert pinbox and the new Moryde, but it is substantially heavier. I’d say 2 people muscling and one to install the hardware would still be a challenge. Forklift or similar is the way to go. Also, the new pinbox doesn’t come with new hardware. Got to use your old or make a trip to Lowe’s/Home Depot.

All and all I’m happy with the upgrade, but I thought it was pricey and don’t like the additional weight.



by:

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!



by:

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.



by:

It was a nice upgrade over the solid pin box my fifth wheel had. The MORryde pin box did improve the quality of the the ride in my tow vehicle. I would recommend it as a good value for the money.



by:

Good price and quick free delivery.
The
product is so much better than the stock pin box.
Very easy install and very happy.



by:

Installed this MORryde cushioned pin box on a 20K# toyhauler(from a solid pin). Comparing 9K miles before and 11K miles after, it made a remarkable improvement in the ride, especially on choppy, rough roads (think I-40 across New Mexico). Easy bolt-on installation. I consulted with the staff @ etrailer.com to ensure the correct hitch model was selected. Shipping was straight forward via truck freight. Excellent communication through the process.



by:

This MORryde pin box eliminated our chucking, which is precisely why I bought it. It also smooths out passing over bridge joints, potholes, etc. Definitely recommend.



by:

I received my order in a timely manner. Three or four days after submitting it. It was delivered by truck in a sturdy box strapped on a pallet. No damage to the box or contents. Installation was a breeze. Fitmant was perfect. Upon test driving after installation I was happy with the performance of the rubber pin box. Works as advertised.



by:

Product was received as expected. Installation went very well. I am eager to try it out this week on the road!



by:

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 !!



by:

just had it installed works great and looks good



by:

Probably the single best addition to my fifth wheel. We have a grand design solitude 2930. Connecting to the trailer is so much softer and taking off from stops is smoother. The chucking is all be gone. I’d highly recommend this as one of the first upgrades



by:

Not a very good ride, a lot of chucking sensation.. Should have kept my Rhino pin box.


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  • Is it Normal for Older King Pin to be Smaller in Diameter Than MORryde Pin Box for 1621 MR64VR
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Do you have a question about this 5th Wheel Pin Box?


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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