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MORryde Pin Box Adapter for PullRite SuperGlide Hitch

MORryde Pin Box Adapter for PullRite SuperGlide Hitch

Item # MR57ZR
Our Price: $136.12
You Save: $26.09
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Shipping Weight: 21 lbs
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This heavy-duty adapter plate allows you to connect a MORryde pin box to the PullRite SuperGlide hitch on your short-bed vehicle. 1-833-496-1390 to order MORryde accessories and parts part number MR57ZR or order online at Free expert support on all MORryde products. Great prices and Fastest Shipping for MORryde Pin Box Adapter for PullRite SuperGlide Hitch. Accessories and Parts reviews from real customers.
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  • Reviews (8)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

MORryde Accessories and Parts - MR57ZR

  • Fifth Wheel King Pin
  • Adapter Plate
  • MORryde

This heavy-duty adapter plate allows you to connect a MORryde pin box to the PullRite SuperGlide hitch on your short-bed vehicle.


  • Adapter plate lets you connect your MORryde pin box to your PullRite SuperGlide hitch
  • Easily bolts onto pin box with included hardware
  • Made in the USA
  • 3-Year limited warranty

RPB77-001 MOR Ryde Pull Rite Hitch Adapter for 5th Wheel Pin Box

Installation Details MR57ZR Installation instructions

Video of MORryde Pin Box Adapter for PullRite SuperGlide Hitch

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of MORryde Fifth Wheel King Pin - Pull Rite Hitch Adapter - MR57ZR

Hello everybody. This is Jeff at Today we're gonna take a look at this Mor-ryde pin box adaptor for the Pull Rite SuperGlide hitch. Now this adapter plate will let you connect your Mor-ryde pin box to your Pull Rite SuperGlide hitch. This is a nice heavy duty skid plate. You can see has the welded on wedge already.

And this well let you enjoy towing your fifth wheel RV with reduced chucking and jerking for a lot more comfortable in cab ride. This is a connection for all Mor-Ryde pin boxes. It is designed for short bed vehicles. It is a bolt on application. It'll easily bolt onto the pin box with the included hardware, which is the bolts, the nuts and the spacer blocks.

This part as made in the USA. Just to get a few dimensions on this. Width of it is right at 13 and a half inches. Total length it's right at 17 and three quarter inches. Total height on it from the very bottom to the very top is right at three inches.

And then the wedge that's already welded on that adds in about another inch of height to it. But that should do it for the review on the Mor-ryde pin box adapter for the Pull Rite Superglide hitch..

Customer Satisfaction Score:

Customer Reviews

MORryde Pin Box Adapter for PullRite SuperGlide Hitch - MR57ZR

Average Customer Rating:  4.8 out of 5 stars   (8 Customer Reviews)

This heavy-duty adapter plate allows you to connect a MORryde pin box to the PullRite SuperGlide hitch on your short-bed vehicle.


The adapter plate went on the MorRyde relatively easily. The whole procedure took just over an hour. I would make just three suggestions, though. First: I have a small hydraulic lift table on casters which I used under the combined weight of both plates (felt like 75 pounds or so). I used the hydraulics to support and position and raise into position the 'sandwich' - thereby saving both our backs. That worked like a charm. Second: when you replace the 7/16-14 nuts on the threaded studs (attached to the rubber shear spring) I found it impossible to reach in from the back to place the nuts (I have fat arms!). Instead I used an old trick of putting a dab of wax on the head of the nut which held it in the socket, And third: you'll need a socket extension to reach into the holes to tighten these nuts.

In conclusion, this is a well made heavy duty (and heavy) product. We're looking forward to using it on our next trip. And, as usual (ho-hum) etrailer was super prompt - I received the product in just a few days. I didn't need any technical help with this product, but it's always comforting knowing it's there if needed. This is not the first thing I've purchased from etrailer and it certainly will not be the last. Thanks folks!


The instructions were very clear, it was an easy and straightforward installation


Fit perfectly and easy to install if you are a handy type person with tools.


Part came in a timely fashion. Fit perfectly. Exactly what I was looking for.


Arrived ahead of schedule and in good condition very satisfied





See what our Experts say about this MORryde Accessories and Parts

  • Correct Pin Box Adapter for MORryde Cushioned Pix Box To Work With a PullRite SuperGlide 5TH Wheel
    Yes, the MORryde Pin Box Adapter # MR57ZR will fit a MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert 1621HD # MR84VR. This will allow for you to use your PullRite SuperGlide 5th Wheel Trailer Hitch to tow your 5th wheel trailer.
    view full answer...
  • Fabex 500 Pin Box Replacement And Pull Rite Hitch Adapter.
    If you're wanting to replace an old Fabex 500 pin box I recommend the MORryde Cushioned 5th Wheel Pin Box for 11.5K to 14K Trailers w/ Fabex 500 Item # MR76XR for trailers with 11,501-lb - 14,000-lb GVWR. If your trailer is 14,001-lb - 15,000-lb GVWR then I recommend the MORryde Cushioned 5th Wheel Pin Box for 14K to 15K Trailers w/ Fabex 500 Item # MR66VR. MoRryde has a plate adapter for Pull Rite hitches: MORryde Pin Box Adapter for PullRite SuperGlide Hitch Item # MR57ZR.
    view full answer...
  • How to Determine Which MORryde Cushioned Pin Box Fits on 2004 Monaco 5th Wheel
    We don't have specific information on what pin box is currently on your 2004 Monaco 5th wheel, so you will need to check the spec sticker on the pin box to find the model number. If you can't locate the model number on your existing pin box you will need to take some measurements; I've linked a helpful article that explains how to measure to determine what model pin box you've got and which replacements would work for you. For reference, the MORryde Cushioned 5th Wheel Pin Box for Up to...
    view full answer...
  • Replacement MORryde Cushioned Pin Box For a 2021 Grand Design Reflection 320MKS 5th Wheel Camper
    For your 2021 Grand Design Reflection 320MKS it appears that you currently have a 1621 Pin Box # LC1191191. You can verify this by checking the bolt hole dimensions on your Reflection. The horizontal bolt holes will be spaced 7-7/8" apart on center and the vertical bolt holes are spaced 2" on center. I have included an image with these dimensions. The MORryde Cushioned 5th Wheel Pin Box # MR74VR will be the correct pin box for your Reflection. This pin box is designed to be used with...
    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 Wilson B
Updated by:
Wilson B
Employee Mike S
Written by:
Mike S

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