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5th-Wheel-to-Gooseneck Coupler Adapter Mounting Plate for MORryde Pin Boxes
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MORryde

5th-Wheel-to-Gooseneck Coupler Adapter Mounting Plate for MORryde Pin Boxes

Part Number: MR37ZR
45 Reviews | 21 Questions
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$263.94
Retail:$336.36
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morryde accessories and parts 5th wheel pin box 5th-wheel-to-gooseneck coupler adapter mounting plate for boxes
morryde accessories and parts adapter plate mr37zr
morryde accessories and parts adapter plate mr37zr
morryde accessories and parts mr37zr
morryde accessories and parts adapter plate mr37zr
morryde accessories and parts 5th wheel pin box mr37zr
morryde accessories and parts adapter plate
morryde accessories and parts adapter plate
morryde accessories and parts 5th wheel pin box adapter plate
morryde accessories and parts 5th wheel pin box adapter plate 5th-wheel-to-gooseneck coupler mounting for boxes
morryde accessories and parts 5th wheel pin box 5th-wheel-to-gooseneck coupler adapter mounting plate for boxes

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Mount your 5th-wheel-to-gooseneck coupler adapter to your MORryde pin box by replacing the skid plate with this adapter plate. 1-800-940-8924 to order MORryde accessories and parts part number MR37ZR or order online at etrailer.com. Free expert support on all MORryde products. Great prices and Fastest Shipping for 5th-Wheel-to-Gooseneck Coupler Adapter Mounting Plate for MORryde Pin Boxes. Accessories and Parts reviews from real customers.
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MORryde Accessories and Parts - MR37ZR

  • 5th Wheel Pin Box
  • Adapter Plate
  • MORryde

Mount your 5th-wheel-to-gooseneck coupler adapter to your MORryde pin box by replacing the skid plate with this adapter plate.


Features:

  • Adapter plate lets you mount your 5th-wheel-to-gooseneck coupler adapter to your MORryde pin box so you can tow your 5th wheel with a gooseneck hitch
    • Coupler adapter (sold separately) either bolts or welds onto plate
  • Plate replaces the skid plate on your MORryde pin box
    • Installation hardware included
  • Made in the USA
  • 3-Year limited warranty


Note: Using a 5th-wheel-to-gooseneck coupler adapter may void the frame warranty of your fifth wheel. It is recommended that you contact the trailer manufacturer to determine whether an adapter can be used.



RPB77-006 MORryde Heavy Duty Skid Pad Adapter for Gooseneck Hitch

Installation Details MR37ZR Installation instructions





Customers Who Purchased This Accessories and Parts Also Bought...



Video of 5th-Wheel-to-Gooseneck Coupler Adapter Mounting Plate for MORryde Pin Boxes
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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 Adaptor - MR37ZR

Hello, neighbors and friends, welcome back. I'm Steven with etrailer.com. Today we're taking a look at our Fifth Wheel to Gooseneck Coupler Adapter Mounting Plate for the MORryde Pin Boxes. Now this adapter plate will let you mount your fifth wheel to gooseneck coupler adapter to your MORryde pin box, that you can then tow your fifth wheel with a gooseneck hitch. Now that coupler adapter is sold separately, and it's either gonna bolt or weld onto this plate. Now this plate, again, is gonna replace the skid plate on your MORryde pin box.

The installation hardware is included. It also comes with these nice, heavy-duty plastic blocks. That's what it's sliding on to give you that extra smooth finish you need. Nice, heavy duty material on those as well. This guy is super, super thick, heavy duty steel.

Nice powder coat finish. Made here in the USA. Let me try to flip it up here, give you a back view. And that's the back. Couple of studs here.

Again, you got the mounted hardware and everything you need included. Now obviously, I've got it upside down here on the plate. Again, this pin box will be flipped over for your fifth wheel attachment. It is made here in the USA. Again, all the hardware included.

A very nice three year limited warranty. That's our Fifth Wheel to Gooseneck Coupler Adapter Mounting Plate. I'm Steve with etrailer.com. Thank you so much for looking at this with me today. Have a great one.

Customer Satisfaction Score:

Ratings & Reviews

4.0

45 reviews
5 Stars
(22)
4 Stars
(10)
3 Stars
(6)
2 Stars
(3)
1 Star
(4)
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by:
This part is required for the Anderson Hitch to work with the MORryde pin box on my fifth wheel. I have had no issues .
by:
Quick shipping (as usual) and easy to install. You must have two people to assist with lifting the plate into place, OR some type of lift to hold it in place. Otherwise, pretty straightforward.
by:
Installed the Morryde pin box to improve the ride with our Andersen fifth wheel hitch. It works well. Satisfied with the results after over 12,000 miles of towing on county and state roads. Would recommend for smoothing out your tow experience.
by:
There was one good thing about this it actually was painted, not as the picture shows.

The bad, if you think it's going to be a breeze to install, per video think again. There are four blocks that come with this and because the top original part has welding slag in it that could not be removed one of the blocks would not slide in, so I had to us a dremel and cut out a divet in it to get it into place.

Then the four holes on the plate itself were so thick that it wouldn't slide in place. The old one you just held it up and it went right back on. Sooo, I had to grind down the metal on all four holes and because I didn't want to get carried away and weaken it I had to pound it into place once I got it ground down at least 1/4". Once I got all this done the project was finally finished although it took 3 people working on it for about four hours before the job was finalized.

I'm sure I could have sent it back and etrailer would have sent me a different one, but I didn't really want to have to disassemble and reassemble everything and then do it all over when a new one came in.

This is very poor quality control on Morryde's part and in the future I probably would not buy another Morryde product, especially since they told me it wasn't their responsibility to notify anyone (dealer's) that this part was necessary when they installed an Anderson hitch for their customers. I only found this out after the fact. It was a toss-up whether to install this or buy a different system altogether. Now I wish that I had.
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by:
I needed this component to be able to install the MORryde cushioned fifth wheel pinbox (https://www.etrailer.com/p-MR55QR.htm). This part is an adapter and has fitted and performed exactly as advertised. I would use this product again. (See review on MORryde cushioned fifth wheel pinbox).
by:
The plate that you sent me was the exact same as the one I already had
by:
Good quality part, fast order processing and shipping.
by:
One of the holes that secured the cushion block was miss drilled and I had to drill a new hole.
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Katrina D. profile picture
Etrailer Expert

Katrina D.

10/21/2023

Do you by any chance have a picture of the spot where the hole was missing? I am a bit confused on what you mean by cushion box? Your pinbox? Please let me know, so I can further assist you.

Robert G. profile picture

Robert G.

11/4/2023

There wasn’t a hole where the bolts are.

by:
Fairly simple to install, definitely need second hand to get plate up and in place, and a Jack. Was all done then found the instructions,, checked them out and checked my torque specs All was good.
by:
Product Is Great, Website and Payment stated a delivery date that i wanted but after purchasing i was told that it would not arrive till a week later which has impacted my travel plans.
by:
It is a nice, heavy-duty hitch and works well.
by:
Ordering and Shipping through etrailer is always effortless. Ordered to install on my 33' Jayco Eagle HT MorRyde cushioned pin box. I use the Andersen Ultimate Hitch and after reading comments on forums, some say the adapter plate was not needed. After receiving the adapter mounting plate and comparing the two, there is a big difference on the manufacturing. The new plate has additional welding/plates minimizing the flex caused by the Andersen Hitch on the pin. The supplied nylon bushing blocks eliminates the side by side movement when towing. Installation was straight forward and took less than an hour, watch the installation video on the MorRyde website, it helps. If you are in doubt in purchasing as I was, order it from etrailer and you will not be disappointed and put your mind at ease when towing.
by:
The adapter plate I received is exactly the same as what was on the Morryde. The extra nuts were the same as I had. The only thing I got for




















The adapter mounting plate I received was exactly the same as the morryde one.The extra nuts I got were exactly what I had.


the only thing I got for $226.oo was the four plastic blocks. Why not just sell them? It is all installed and torqued to specs now. We'll see if this helps. Can I sell this extra plate?
Kate F. profile picture
Etrailer Expert

Kate F.

11/19/2025

I am very sorry that MORryde does not sell those separately Alvin! I once had a VW where this one plastic piece where the coolant went through kept cracking, they made me buy all the hoses and everything for $300, why could I not just buy that one piece I will never know.... I feel your pain.

by:
The parts that I did received were good,but I didn’t received all the parts that were supposed to be with the kit. I had to contact someone at etrailer and mortadella to get the remaining pieces needed to finish the job. Quality control is lacking.
by:
Hitch plate was in good shape, packaging the product could be a little bit better. The box was thrashed by the delivery guy. Other than that it was a perfect match, for my replacement.
by:
Well made with good powder coating. Was missing one washer, and bolt for the block. Picked up at local hardware store for 3$. Need to bag the hardware as it was all free to float around the box. Installed by myself in less than an hour.
by:
Haven't installed it yet, When i received the adaptor it was missing the hardware. I called customer service and received the missing parts promptly.
by:
Product was as advertised. Fast service. Will install tomorrow.
by:
Everything fit as advertised and installed without issue. The packaging was pretty torn up and looked like it was taped up somewhere along the way. The part is really too heavy for a simple cardboard box. Luckily the small parts didn’t escape the box.
Martha did a great job processing our order.
by:
Arrived quickly. Fit well. People at etrailer were very helpful and polite. When speaking to MORride directly, they were rude and obnoxious.
by:
The part seems great...the 3 star rating is because the part was delivered in a beat-up, torn-up (then obviously taped) etrailer box & parts were missing. I had to make a trip to the hardware store to get the bolts & washers that were missing.
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

3/7/2025

Hey Dean. I'm really sorry to hear that the hardware was missing. I'll get this taken care of for you.

by:
The original morryde box was damaged and taped up. the hardware was missingwhen I received it. Should have been checked at your facility before shipment.
by:
They only thing that I was not happy with is the fact that I bought it and then found out that I had to buy a different pin box plate to go with my anderson.
by:
Could you please send some instructions of how to put it on
Thanks
by:
This is an adaptor that is necessary if you have the MORryde Fifth wheel on your trailer and use the Andersen hitch in your truck. The box arrived crushed and damaged. When I opened the box, only the adaptor mounting plate was present and it had paint knocked off of two corners. It was supposed to come with the required stability blocks, flange nuts, bolting and washers (all missing). Etrailer did a good job of getting the missing required hardware to me within a few days. No instructions are included with the adaptor, but they are available on the Etrailer website and through MORryde. The additional lateral support provided by the plastic blocks provides peace of mind.
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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Steven C
Installed by:
Steven C
Employee Jameson C
Expert Research:
Jameson C
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Written by:
Mike S

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