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  1. Trailer Door Hinges
  2. Marlboro
  3. Piano Hinge
  4. Steel
  5. 72 Inch Long
  6. Greaseable Pin
4" Wide Continuous Hinge - 6' Long - 3/8" Pin Diameter - Steel
Marlboro

4" Wide Continuous Hinge - 6' Long - 3/8" Pin Diameter - Steel

Part Number: MA85VR
In Stock
$122.84
Trailer Door Hinges
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Great for your heavy-duty utility trailer, this steel 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. 4" Wide Continuous Hinge - 6' Long - 3/8" Pin Diameter - Steel part number MA85VR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (370)
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Marlboro Trailer Door Hinges - MA85VR

  • Piano Hinge
  • Steel
  • 72 Inch Long
  • Greaseable Pin
  • 4 Inch Wide
  • Weld-On
  • Marlboro

Great for your heavy-duty utility trailer, this steel 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
  • Steel construction is durable and long-lasting
  • Made in the USA


Specs:

  • Dimensions: 6' long x 4" wide
    • Each side of the foldable hinge measures 2" wide
  • Individual knuckle length: 2"
  • Pin diameter: 3/8" (9.5 mm)


Marlboro S12006472 Continuous Piano Hinge Diagram



S12006472 Marlboro Piano Hinge - Door Hinge - Steel - 6' Long x 4" Wide - 9.5-mm Pin





Customer Satisfaction Score:

Ratings & Reviews

4.8

370 reviews
Review sort icon
Great for your heavy-duty utility trailer, this steel 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:

Exactly as described, fast shipping and great packaging. will be doing business again.



by:

Im impressed by how those guys shipping so fast, securing the stuff and hinges are perfect, literally. Nice shop



by:

Heavy duty!!!Does it come in stainless steel too



by:

Fast shipping and great price



by:

Great product fast shipping fantastic customer service!



by:

It was exactly as depicted and described on the website. I wish it wasn't so hard to find sorting thru all of the other brands sizes and options by other companies. very heavy duty, perfect for what i needed thankyou



by:

I finally found what I needed. A heavy duty hinge. Not one of those flimsy one's you buy on Amazon. This will actually work. Thanks for the super fast shipping and a very good price on that item. Some people just don't know what heavy duty means.



by:

I needed a new hinge for my cellar door. This heavy duty, extra long hinge worked perfectly.



by:

Used this hinge to replace 2 frozen hinges on our 10 foot enclosed trailer. Because of the full length, we were able to bolt it on instead of welding. We cut the old ones off with a cut off wheel. It worked out great!



by:

Very well constructed as we needed a heavy duty weld on hinge and this was the only hinge in the market to meet our application.
Fast service great feedback and properly packed for safe delivery as we live in an industry where what arrives and in what condition is always an unknown.
I highly recommend this vendor. I will be purchasing more products from their large selection.
2 thumbs up!!



by:

I bought the Marlboro hinge to replace a hinge off my SXS trailer … To replace the stock hinge after it couldn’t hold up to the weight….. The Marlboro hinge has worked great and no signs of failure or anything to be worried with….



by:

Big beefy the hinge you want! !



by:

exactly what I needed thank you guys for the good product and fair pricing



by:

This is the 4 th one of these. Through bolt them and you’re DONE! Excellent product



by:

Very well made hinge. Has been working great.



by:

Product performs as a hinge should. Welding this piece was great and holds strong. Looking forward to many years of use.



by:

Product is as was described and works great for what we needed.



by:

Worked great!

Brooke M. profile picture
Etrailer Expert

Brooke M.

6/6/2025

Looks fantastic, Jeff! Do you install these for customers or is this on your own personal trailer?



by:

Thank you for the very fast delivery , just what I needed to up grade and complete my trailer. The hinge is nice and strong



by:

Worked perfectly! I used the hinge for a custom 3’ x 12’ attic staircase that uses a hoist to raise and lower the full size staircase.

Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

1/29/2025

That staircase looks awesome Russ. It looks like you may be doing a big reno project?



by:

Nice heavy duty hinge. We used them as a replacement for the rusted light duty hinge on our custom hunting camp trailer. Received them quickly and in time to installed before the 2022 deer season.



by:

Well made heavy duty hinge. My application is for a cargo trailer door ramp. I needed a HD hinge as I am loading very heavy items in the trailer



by:

heavy duty!



by:

This is the item I needed and it was sent out and received very fast, very pleased with the product here for my enclosed race trailer to help with my need after I had upgraded my trailer floors & ATP ramp door flap. Item was just as described in the video upon ordering off the website.

Thanks



by:

This was a repair hinge for a 16' cargo trailer ramp. We, the Genoa Fire Department, use the trailer for moving our cooking grills, tables, supplies, etc for fundraising events. The hinges we bought are much heavier-duty than the original ones that pulled out of the plywood ramps. We are very pleased with them. I drilled and lagged the hinges, didn't weld then. We are happy with the results.

Jim profile picture

Jim

5/23/2026

These hinges are working great on our cargo trailer ramp filler flaps when moving our BBQ equipment gor the Fire Department events. They are uch better than the OEM hinges that they replaced.


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See what our Experts say about this Marlboro Trailer Door Hinges

  • Weight Capacity for Steel Continuous Hinge
    Hi Justin, Thanks for your question. The manufacturer of the 4" Wide Continuous Hinge - 6' Long - 3/8" Pin Diameter - Steel # MA85VR does not publish a maximum weight capacity. In fact, that's common with continuous hinges—none of the continuous hinges we carry are assigned a specific weight rating. The amount of weight a continuous hinge can support depends heavily on the application. Factors such as the length of the hinge being used, how it's mounted (welded or bolted), the strength...
    view full answer...
  • Replacement Hinge for Storage Door
    I would be happy to help you but I do not have any way of knowing what hinge is currently on your 2019 Forest River Sandpiper. A lot of our hinges are similar to the item # MA77ZR or item # MA85VR. If you could email me a picture of what your hinge looks like along with some measurements I would be more then happy to look for one that'll fit your 5th wheel.
    view full answer...
  • How To Pick Out the Correct Replacement Piano Hinge for a Cargo Ramp Door
    The main factor in choosing the correct replacement piano hinge is pin diameter which then in turn, denotes capacity. The hinge width and material are also all worthwhile contributing factors. The Continuous Piano Hinge part # MA85VR for example uses a 3/8" pin, measures 4" wide, and is made of steel. The length is 72" but this can be cut to fit your exact specification, just make sure to do so at an intersection. I have attached below our full list of piano hinges you can choose from...
    view full answer...
  • Solution for Needing Replacement RV Cargo Door Hinge
    Usually RV cargo door hinges are piano style hinges that are between 3 and 4 feet like the part # MA85VR which is 4 foot long. This could also be trimmed down as well.
    view full answer...
  • Can The 4" Wide Continuous Hinge Be Cut Down To A Different Length?
    Yes, the 4" Wide Continuous Hinge # MA85VR can be cut down to 16" or 18" like you're wanting to do. This hinge measures 6' long, 4" wide, has a 270° rotation for full opening/closing and is made in the USA. Attached is a review video for you to check out as well.
    view full answer...
  • Replacement Clearance Lights and Compartment Door Hinges for a 2014 Keystone Apache
    It looks like the 4" long x 1-1/2" tall x 15/16" thick Optronics LED Trailer Clearance and Side Marker Light w/ Reflex Reflector # MCL44AB would be a good replacement option for the clearance lights on your 2014 Keystone Apache but you'll want to confirm the dimensions with what you have to make sure they match up. When it comes to the compartment door hinge replacement, we do have a handful of hinges but they are more of a utility trailer style like what you see with the part # MA85VR....
    view full answer...
  • Can the 4" Wide Continuous Hinge MA85VR Be Cut To a Different Length?
    Yes, the 6' Long, 4" Wide Continuous Hinge # MA85VR can be cut down to the length needed. It is a 270 degree hinge that will allow you to use it as an extension on your ramp door.
    view full answer...
  • Does The 4" Wide Continuous Hinge Have A Rust Preventative Coating?
    The 4" Wide Continuous Hinge - 6' Long - 3/8" Pin Diameter # MA85VR is made from mill finished steel with a commercial die cut quality, however they are not coated with any rust preventative. With that being said, it would absolutely be a great idea for this hinge to be painted over with some rust-preventative paint. Attached is a product overview video for you to check out as well.
    view full answer...
  • Does The Marlboro Continuous Hinge Come With Pre-Drilled Mounting Holes
    The 4" Wide Continuous Hinge - 6' Long - 3/8" Pin Diameter - Steel # MA85VR does not come with pre-drilled mounting holes because the manufacturer wanted to provide a universal fit hinge. You will have to drill out the holes on your own. The hinge has a weld-on on bolt on installation and is made out of a steel construction which is durable and long lasting. The hinge rotates 270 degrees for full opening and closing motion. I attached a review video link below.
    view full answer...

Do you have a question about this Trailer Door Hinge?


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

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