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  1. Trailer Door Hinges
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  3. Piano Hinge
  4. Continuous Hinge
  5. Greasable Pin
  6. Aluminum
4" Wide Continuous Hinge - 6' Long - 3/8" Pin Diameter - Aluminum

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

Item # MA38JR
Our Price: $131.01
Trailer Door Hinges
Shipping Weight: 8 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. 4" Wide Continuous Hinge - 6' Long - 3/8" Pin Diameter - Aluminum part number MA38JR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (348)
  • Q & A (0)
  • Videos (1)
  • Photos

Marlboro Trailer Door Hinges - MA38JR

  • Piano Hinge
  • Continuous Hinge
  • Greasable Pin
  • Aluminum
  • 72 Inch Long
  • 3/8 Inch Diameter
  • 4 Inch Wide
  • 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 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



A12006472 Marlboro Piano Hinge - Door Hinge - Aluminum - 6' Long x 4" Wide - 9.5-mm Pin





Video of 4" Wide Continuous Hinge - 6' Long - 3/8" 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 - 4 Inch Wide 6 Foot Long Continuous Hinge - MA38JR

Hi there, I'm Michael with etrailer.com. Today, we're going to take a quick look at this six-foot long by four inch wide continuous hinge. This hinge is gonna provide a sturdy, continuous support for your door or tailgate under utility trailer. It does have 270 degrees of rotation for full opening and closing motion. And that six foot length is going to offer more support than smaller individual hinges and it's goNNA help reduce the stress on your heavier doors. This can be welded on or bolted on.

As you see the side plates here are solid materials, so you can drill the holes wherever you need them to be. If you're wanting to bolt this in place, does have an aluminum construction. So it is going to be very lightweight and rustproof. Each side is going to measure two inches. Can show you that here with a little ruler.

So if I hold that up, you can see up to the hinge there, right about two inches forget the right angle from my camera. The knuckles themselves are also right at two inches in length. So you can see the pin diameter inside there is gonna be 3/8 of an inch or about 9 1/2 millimeters. And this is made here in the USA, so you can trust, it's made to the high quality standards that we've come to know and trust for products that are made here in the US. So if you are looking for a four inch wide by six foot long continuous hinge for your trailer, this is going to be a great option for you.

That's going to complete our work for today. Again, I'm Michael with etrailer.com. Thanks for watching..

Customer Satisfaction Score:


Customer Reviews

4" Wide Continuous Hinge - 6' Long - 3/8" Pin Diameter - Aluminum - MA38JR

Average Customer Rating:  4.8 out of 5 stars   (347 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:

I didn't use it on a trailer, but the use of it is the best choice for the situation.



by:

The hinge appears solidly made. I welded it onto my project yesterday, there is zero flex. Happy with it so far.



by:

Great service and excellent products



by:

Exactly what I needed and thought I ordered. Thanks.



by:

High quality and very strong constructi on!



by:

Wrong item shipped, received 3” wide STEEL, not 4” wide ALUMINUM. I was forced to wait for the second item because it wasn’t in stock, now I’m waiting again, and having to return one item to UPS before the correct item is sent out. Please check stock and ensure it is the correct item



by:

just what i needed



by:

Exactly what we needed to repair the rear door on enclosed trailer. Great quality and easy to install.



by:

I have ordered a number of products from E trailer. All were very good. They have excellent customer service and I would buy from them again. One little thing they could use help on is packaging their products so they don’t fall apart on the way to the customer.



by:

George C.

8/31/2023

Although my trailer has been lightly used, the trailer door hinge has performed flawlessly



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by:

Very impressed with the quality this hinge. I had to repair my FlipBak tonneau cover. This hinge will provide superior security over the original piece of rubber that those tonneau covers use as a hinge.

Thanks for the excellent customer service.



by:

3 stars, due to packaging. Ordered 3 inch by 72 inch piano hinge. Packaging tube arrived without hinge, cap on end was missing.Went to post office to see if they seen it and they did. Brought it home and is in working condition.



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 tried ordering this same hinge through a hardware supplier and they couldn't get it. I found this on a web search and couldn't believe E-trailer had it in stock, it came within two days. Happy to get this project done!



by:

used cobalt drill bit drilled 4 holes in hinge on corners with paper to keep door space for future paint ,drilled holes in hinge only just touch wood ,undid 4 screws ,recessed wood with bur thing ,punched stainless hinge into wood, screwed in screws near flush ,very clean super price and strong ,thank you



by:

It arrived on time perfectly protected with no damage. This was a last minute project that was dropped on me and I was scrambling to to find the components. etrailer was easy to scroll through and easy to complete my purchase.



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:

Good hinge. Fast shipping



by:

Everything is working as it should. Way better than the aluminum ones that where on thereForsure.



by:

Worked out great for my trailer build and made thing a lot easier for making a heavy duty tool box door in the v of a tag trailer



by:

Was very surprised with the quality of the hinge for the price. etrailer went above and beyond with packaging and shipping. Was worried that hinge would be bent in shipping because of it size but it was packed in a really strong tube. Product arrived 2 days before the estimated date. Will definitely be a repeat customer. I’m glad I stumbled upon etrailer and look forward to using them a lot more for my business. Thanks etrailer.



by:

needed to build a few ramp door extensions. these hinges fit the bill and for a great price too.



by:

It was shipped in a timely manner safe and I damaged. I used it to replace a toolbox lid hinge. It was a little overkill on size but it has worked so far. Thank you for supplying me with a great product.


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See what our Experts say about this Marlboro Trailer Door Hinges

  • Availability Of 3" Wide 4' Long Aluminum Hinge With A 3/8" Pin
    It appears we do not carry a hinge that will fit those parameters exactly. We do offer a few 3" wide continuous hinges with a 3/8" pin like the # MA94ZR. This is a stainless steel hinge that measures 6' long overall. Unfortunately we do not offer anything in aluminum that will be 4' long. They will all be 6' or longer. So the # MA94ZR will be the closest thing that we offer.
    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...
  • Aluminum Piano Hinge for Outdoor Use That is 4" Wide
    We only have one piano hinge that is either 4" or 6" wide and constructed of either stainless steel or aluminum. That is the 4" Wide Continuous Hinge # MA38JR which is made of aluminum and 72" long with a 3/8" pin diameter. We do not have any that are 66" long. We have contacted the manufacturer in the past about cutting the hinges down to size and have been told it is ok. They said the hinge pin should not be able to slide out, but in the event it does try to slide you should peen the...
    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 Mike S
Written by:
Mike S
Employee Michael B
Installed by:
Michael B

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