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  1. Trailer Door Hinges
  2. Marlboro
  3. Piano Hinge
  4. Continuous Hinge
  5. Greasable Pin
  6. Aluminum
3" Wide Continuous Hinge - 6' Long - 1/4" Pin Diameter - Aluminum

3" Wide Continuous Hinge - 6' Long - 1/4" Pin Diameter - Aluminum

Item # MA74ZR
Our Price: $66.02
Trailer Door Hinges
Shipping Weight: 5 lbs
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Great for your heavy-duty utility trailer, this aluminum piano hinge provides uninterrupted support for your door or tailgate. The hinge rotates 270 degrees and contains no pre-drilled holes, so it can be welded or drilled to match your setup. Great Prices for the best trailer door hinges from Marlboro. 3" Wide Continuous Hinge - 6' Long - 1/4" Pin Diameter - Aluminum part number MA74ZR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (343)
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  • Videos (1)
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Marlboro Trailer Door Hinges - MA74ZR

  • Piano Hinge
  • Continuous Hinge
  • Greasable Pin
  • Aluminum
  • 72 Inch Long
  • 1/4 Inch Diameter
  • 3 Inch Wide
  • Weld-On
  • Marlboro

Great for your heavy-duty utility trailer, this aluminum piano hinge provides uninterrupted support for your door or tailgate. The hinge rotates 270 degrees and contains no pre-drilled holes, so it can be welded or drilled to match your setup.


Features:

  • Hinge provides sturdy, continuous support for the door or tailgate on your utility trailer
  • Continuous design offers more support than smaller, individual hinges and reduces stress on heavier doors
  • 270-Degree rotation for full opening and closing motion
  • Weld-on or bolt-on installation
    • Bolt-on installation requires drilling holes into hinge
  • Aluminum construction is lightweight and rustproof
  • Made in the USA


Specs:

  • Dimensions: 6' long x 3" wide
    • Each side of the foldable hinge measures 1-1/2" wide
  • Individual knuckle length: 1"
  • Pin diameter: 1/4" (6 mm)


Marlboro A09304872 Continuous Hinge Diagram



A09304872 Marlboro Piano Hinge - Door Hinge - Aluminum - 72" Long x 3" Wide - 6-mm Pin





Video of 3" Wide Continuous Hinge - 6' Long - 1/4" Pin Diameter - Aluminum

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




Video Transcript for Review of Marlboro Trailer Door Hinges - Barrel Hinge - MA74ZR

Hello everybody, this is Jeff at etrailer.com. Today, we're gonna take a look at this 72-inch-long, three-inch-wide aluminum piano hinge. Now this hinge will provide a nice sturdy continuous support along the length of your cabinet, your door or your panel. It's great for oversize doors, trailer doors, and entrance doors, and this will provide more support than multiple small hinges. You can see this hinge is a nice continuous design, so it does reduce the stress on the hinge when used with heavier doors. And this hinge does rotate about 270 degrees.

Just to show you what we're talking about, I wanna show you that one of the sides'll rotate back 90 degrees, and you can see, if you rotate it the other 180 degrees, gives you a grand total of 270 degrees of rotation for a nice full opening and closing motion. This is a nice durable aluminum construction, has a nice milled finish to resist corrosion. This is a weld-on or bolt-on installation, now to bolt it on, it will require drilling holes into the hinge. This part is made in the USA. Few specs on this, go ahead and take our tape measure.

And then we'll go from one end all the way to the other end. So total length, 72 inches or six feet. The width on it, and I have it in the fully opened position, you can see, so the widest it's gonna be, we'll zoom in again. So the total width on this is gonna be right at three inches. The knuckle length, in other words, each one of these knuckles right here, they're gonna measure one inch, and the pin diameter, in other words, that pin that goes through those knuckles that hold these two pieces together, that pin diameter is a quarter of an inch.

And again, you can see how it rotates. But that should do it for the review on this 72-inch-long, three-inch-wide aluminum piano hinge..

Customer Satisfaction Score:


Customer Reviews

3" Wide Continuous Hinge - 6' Long - 1/4" Pin Diameter - Aluminum - MA74ZR

Average Customer Rating:  4.8 out of 5 stars   (342 Customer Reviews)

Great for your heavy-duty utility trailer, this aluminum piano hinge provides uninterrupted support for your door or tailgate. The hinge rotates 270 degrees and contains no pre-drilled holes, so it can be welded or drilled to match your setup.

by:

Came a little bent from shipping but I can work with it , looks pretty strong will install hung this weekend. Thanks



by:

Great hinge for my tail gate flap



by:

Just what I needed, hinge description is spot on, easy to cut to length



by:

The hinges were shipped in a tube through UPS.
When they arrived, the tube was broken and both hinges were bent. The driver asked me if I wanted to return them.
Since I needed them now, and didn’t want to wait for new ones, I told the driver no, I would keep them.
Just thought you should know.

Etrailer Expert

Katrina B.

5/30/2023

I am sorry that they arrived in that condition! Since you were in a rush to get them, let me get you over to our customer service department for them to look into what they can do for you.



by:

Used the hinge to build a door for my race car trailer, worked perfect.



by:

Prompt delivery, packaged well. Great S ervice



by:

Correct item received, but tape gum on the hinge will require extensive cleaning before use. Was not necessary to be taped up, Or use painters tape the is easily removable leaving no film.



by:

Very happy with the E hooks.



by:

Worked great, just what I meeded



by:

great service



by:

good product at a good price.

Made
my Tailgate extension for enclosed trailer work great



by:

Really appreciated the packaging job done on the shipment. Liked that you used UPS.



by:

Nice hinge and shipped quickly!



by:

All good. Easy to figure out web site .



by:

Product as described, good quality and function
I



by:

Was sent wrong and when we called they reshipped out the correct part but we were a week behind on finishing a job because they would not ship any different than original even though it was not our fault. We called and spoke with a supervisor and she said there was nothing they would do. Your mistake and we are the ones that paid for it and the service we got was terrible



by:

Great service with this company emails are answered very quickly. Best place to order supplies. Keith Lange



by:

Everyone at e trailer is very helpful. I would recommend this company highly.



by:

Promptly shipped and packaged well. A quality product.



by:

Fast shipping, packaged safely! Will share photos when project is complete!



by:

Exactly what I needed!!! Looked for a year and here it was!! Installed and perfect!!



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Order received on time in exellent cond ition


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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 Eric H
Updated by:
Eric H
Employee Mike S
Written by:
Mike S

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