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  1. 5th Wheel Pin Box
  2. MORryde
  3. Lippert 1621
  4. Lippert 1621HD
  5. 21000 lbs GTW
  6. Upgraded Pin Box
MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert 1621 and 1621HD
MORryde

MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert 1621 and 1621HD

Part Number: MR84VR
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$799.99
Retail:$965.98
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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 MR84VR 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 14K to 18K Trailers w/ Lippert 1621 and 1621HD. 5th Wheel Pin Box reviews from real customers.
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MORryde 5th Wheel Pin Box - MR84VR

  • 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.


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 14,001-lb - 18,000-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): 14,001 lbs - 18,000 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.


The internal rubber shear spring in this pin box is optimized for trailers that range from 14,001 to 18,000 lbs to ensure that it provides just the right amount of shock absorption for your application. If this pin box were to be used on a larger trailer, the spring would be too stiff to provide enough cushion. And if your trailer's GVWR was less than 14,000 lbs, then the spring would be too flexible to provide adequate support.


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-05 More Ride Fifth Wheel Rubber Pin Box Replacement for Lippert 1621 and 1621HD - 14,001 - 18,000 lbs GVWR

Installation Details MR84VR Installation instructionsAlternate Instructions MR84VR Installation instructions



Customer Satisfaction Score:

Ratings & Reviews

4.7

205 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.

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See what our Experts say about this MORryde 5th Wheel Pin Box

  • Will A Rota-Flex Pin Box Provide A Better Ride Quality With A Curt CrossWing 5th Wheel Hitch
    If you have the Gooseneck versions of the Curt CrossWing ( # C92DR or # C32DR) you unfortunately would not be able to use the Rota-Flex with it. The pivoting head causing too much strain for the single point of contact you have with a gooseneck hitch. If you have the base rail version # C86JR with four points of contact then you would be able to use a Rota-Flex pin box. As for the ride quality, the pivoting head of the Rota-Flex can help reduce chucking so it would be worth considering...
    view full answer...
  • How Much Does The MORryde Cushioned 5th Wheel Pin Box MR84VR Weigh?
    The MORryde Cushioned 5th Wheel Pin Box # MR84VR weighs right at 190 pounds. Due to this, it will ship freight. Just in case you needed, this is designed to fit 14,000 to 18,000 pound trailers with the Lippert 1621 and 1621HD pin boxes.
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  • Will Gen-Y 5th Pin Boxes Void The Lippert Frame Warranty
    Hi James, To my knowledge the Reese Goosebox is the only replacement option that won't void the frame warranty. That being said, the frame warranty is typically only a year so you really aren't losing much voiding it, especially if you've had the trailer for over a year. To find the correct fit for your trailer you'll need to first determine the bolt pattern for your trailer and then measure for the fully loaded pin weight of the trailer. For example, the Gen-Y Hitch Shock Absorbing...
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  • Comparing The Reese Goose Box And Versus A Pin Box And 5th Wheel Hitch For Ride Quality
    Hey Mark, So Bud is correct but the Reese Goose Box # RP94716 is designed with a gas shock and air spring to provide a more comfortable ride. If it were a standard gooseneck hitch without any cushioning then yes, you would have ride quality issues. Owners of the # RP94716 praise the difference this pin box makes in ride quality, but the air chuck location is less than ideal on this model. It's on the bottom of the box so some people have a hard time connecting to it once coupled to...
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  • Recommended Replacement Gen-Y Pin Box for a Lippert 1621 Pin Box
    Hey Brian thanks for getting all that info over to us! I was able to forward this to Lippert and they let me know that you have a Lippert 1621 pin box so the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box # GY46FR would work great. This pin box will directly replace your 1621 pin box, has a 30,000 lb capacity, and has a 3,500 to 5,500 lb pin weight rating. What kind of trailer do you have? Any plans when the weather warms up a bit? Feel free to let me know if there is anything else I...
    view full answer...
  • Will the MORryde Cushioned 5th Wheel Pin Box Replace a Lippert 1621 Pin Box
    Hey Anthony, it sounds like your trailer's already got the Lippert 1621 pin box which means the MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert 1621 and 1621HD # MR84VR will work great as a replacement. As far as toque specs go, I've gone ahead and attached the table referring to which bolts require what for you to check out.
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  • How To Determine If A MORryde Cushioned Pin Box Will Fit Your 5th Wheel Trailer
    To determine if the MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert 1621 and 1621HD # MR84VR will fit your trailer you'll need to first determine your trailer's bolt pattern. There will typically be a sticker (pictured below) that lists a serial number, RPO number, and LCI item number that we can use to look up your bolt pattern. If you sticker is missing or has been painted over then you'll need to measure the bolt pattern using the attached guide below. The MORryde...
    view full answer...
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  • Is The MORryde Cushioned 5th Wheel Pin Box Compatible With Curt CrossWing 5TH Wheel Hitch?
    Yes, you can use the MORryde Cushioned 5th Wheel Pin Box # MR84VR with the Curt CrossWing Lightweight 5th Wheel Trailer Hitch # C86JR.
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  • Lippert 1621 Pin Box Upgrade for Better Turning Clearance and Ride Quality
    The 16K MORryde Orbital Rotating Pin Box part RTPB77-1622-03 you're looking for was actually discontinued back in 2021 so you're going to have a hard time finding that part. If you can let me know what pin box number you have though I can see if we have a similar pin box size with the rotating turret for better turning clearance.
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  • Replacement Shear Spring Options for a MORryde Trailer Suspension System
    We do a couple replacement shear springs available for you that may work depending on what you're needing. For instance, we do carry the Replacement #75 Rubber Shear Spring for MORryde Trailer and RV Suspension Systems # MR96UR, which will work with the MORryde LRE4000 Series trailer suspension systems with axle ratings between 8,500 and 10,500 lbs. We also carry the Replacement #20 Rubber Shear Spring for MORryde Trailer and RV Suspension Systems # MR79UR. This spring will work with...
    view full answer...
  • Correct MORryde Pin Box for Grand Design Reflection 337RLS
    The Grand Design Reflection 337RLS has a GVWR of 13,995 lbs. This is right in the middle of the MORryde Cushioned 5th Wheel Pin Box part # MR74VR for 11,501 lbs to 14,000 lbs or part # MR84VR for 14,001 lbs. If you wanted to do things completely by the book then go with the lesser rated model up to 14,000 lbs. This will work fine for you and is rated appropriately. That said, from our experience, customers tend to overload their trailer and it's worthwhile to have some extra margin of error...
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  • Can MORryde Pin Box be Used with Demco Hijacker Autoslide Fifth Wheel Hitch
    Yes, MORryde cushioned pin boxes like # MR84VR can be used with Demco Hijacker Autoslide fifth wheel hitches. There's even a capture plate from MORryde that was designed for this application with the part # DM6025.
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  • Is MORryde or Rota-Flex a Better 1621 Pin Box Replacement?
    Hey Donald, thanks for reaching out! I recommend using the MORryde Cushioned Pin Box # MR84VR over the Curt Rota-Flex # LC328330 any day because it has better cushioning technology. Back in the day when the Rota-Flex was first released it was top-notch, and while it's still an effective pin box, the MORryde system performs better. The MORryde number I referenced above is for 14K - 18K trailers. If you have a different GVWR then you'll either need part # MR74VR for 11.5K - 14K trailers...
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  • Can A MORryde Cushioned Pin Box Be Used With A PullRite SuperGlide 5th Wheel Hitch
    If you're asking if the MORryde Cushioned 5th Wheel Pin Box # MR84VR would be compatible with a PullRite SuperGlide 5th wheel hitch you'll just need the correct adapter # MR57ZR. This adapter replaces the plate currently on the pin box with one that has a built in wedge so that you can lock the king pin into the jaws of the hitch. If you're wanting to replace your current pin box with the # MR84VR then you'll first want to determine the bolt pattern and GVWR. You can find the GVWR on...
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  • Recommended MORryde Replacement Pin Box For A Lippert 1621HD Pin Box
    Since you have a 1621 bolt pattern and 15,500lb GVWR the MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert 1621HD # MR84VR that you were looking at would be the correct replacement. To connect the MORryde pin box to your Demco Autoslide you'll just need to swap out the capture plate of the pin box with the Demco Autoslide Locking Plate for MOR/ryde Pin Boxes # DM6025.
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    Image 1 for Image 2 for
  • Rota-Flex Pin Box Upgrade for a 2022 Salem Hemisphere 369BL
    Thanks for the photo, David! The pin box on your 2022 Salem Hemisphere 369BL is a 1621 model with a 15.5K weight rating. To replace this with a Rota-Flex you need the part # LC328330. This is rated for 18K, but the extra bit of capacity won't be an issue. The Rota-Fle is more of a mid-tier pin box so if you wanted something with a better performance, then I recommend the MORryde Cushioned 5th Wheel Pin Box # MR84VR which has a better cushioning system. Attached are some pin box videos...
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  • Options For Lower The Nose Of Your Fifth Wheel Trailer To Ride Level
    The MORryde Cushioned 5th Wheel Pin Box # MR84VR you were looking at has a total height of 11.35" (pictured below) so you wouldn't see much of a difference from the standard pin box you currently have. Based on what you've stated and the pictures you've provided you're not going to be able to adjust the pin box or the hitch enough to lower the nose of your trailer so the only option would be to raise the height of the trailer. This can be done by replacing the leaf spring hangers with...
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    Image 1 for Image 2 for Image 3 for Image 4 for
  • Weight Of The MORryde Cushioned 5th Wheel Pin Box # MR84VR
    The MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert 1621 and 1621HD # MR84VR is listed as being 190lbs. You'll probably want to have three people to lift the pin box in place and get it bolted, unless you have access to a forklift like I did in the attached installation video below.
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  • MORryde Cushioned 5th Wheel Pin Box For Lippert 1621HD Pin Box on 15k 5th Wheel Trailer
    Thank you for that information with the photo, and I reached out to Lippert to find the pin box you have, and they told me that you had a Lippert 1621HD pin box. We do have the MORryde cushioned pin box that will work as a replacement with the following part: - MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert 1621HD # MR84VR This pin box is a really nice upgrade for your Brookstone trailer, as the MORryde has an internal rubber sprig which absorbs vibration and shock...
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  • Will The Curt Flex Air 5th Wheel Pin Box, # LC328492 Work For 2022 Landmark Newport
    Check the tags on the RV itself to verify but from an online search it appears that your RV has a GVWR of 18,000 lbs. which means the Curt Flex Air 5th Wheel Pin Box, # LC328492 will work. The Curt Flex Air 5th Wheel Pin Box, # LC328492 replaces Lippert 1621 pin boxes and is rated for use up to 18,000 lbs. the MORryde Cushioned 5th Wheel Pin Box, # MR84VR is listed to replace a Lippert 1621HD pin box and also rated for use up to 18,000 lbs. The difference between the 1621 and a 1621HD...
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  • Will the MORryde Cushioned Pin Box For Lippert 1621HD Pin Box Also Fit a Lippert 1621 Pin Box
    Yes. The MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert 1621HD # MR84VR can be used to replace a Lippert 1621 or 1621HD; this pin box replacement is designed for trailers with GVWR up to 18,000-lbs so it is rated properly for your 15,000 GVWR trailer.
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  • Correct MORryde Cushioned 5th Wheel Pin Box for 2021 Grand Design Reflection 367BHS
    The correct MORryde Cushioned 5th Wheel Pin Box for a 2021 Grand Design Reflection 367BHS is part # MR84VR. The Lippert 1621 and 1621HD are interchangeable.
    view full answer...
  • Replacement Pin Box Options For a 2022 Keystone Cougar 316RLS 5TH Wheel Camper
    Your 2022 Keystone Cougar 316RLS does have a Lippert 1621 Pin Box # LC1191191. You are able to upgrade this to one of the following pin boxes. MORryde Cushioned 5th Wheel Pin Box # MR84VR Trailair Rota-Flex 5th Wheel Pin Box # LC328330 Curt Flex Air 5th Wheel Pin Box # LC328492 If you are looking to use with a gooseneck hitch we have the Gen-Y Hitch 5th Wheel to Gooseneck Pin Box # GY58GR. Do remember you will need the Safety Chains # GY49GR if you are going to the ball connection.
    view full answer...
  • Correct MORryde Pin Box for Grand Design Reflections 337RLS
    The correct MORryde Cushioned 5th Wheel Pin Box for a Grand Design Reflections 337RLS is part # MR84VR. This pin box will do a wonderful job of helping smooth the ride due to the internal cushioning which reduces road shock.
    view full answer...


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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
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
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Employee Clayton O
Test Fit:
Clayton O
Employee Kevin C
Test Fit:
Kevin C

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