1. Trailer Door Hinges
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  5. 8-3/16 Inch Long Hinge
  6. Weld On
Ramp Door Hinge - Steel

Ramp Door Hinge - Steel

Item # PLR1902
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Polar Hardware 4 Inch Wide Bracket Trailer Door Hinges - PLR1902
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Lowest Prices for the best trailer door hinges from Polar Hardware. Ramp Door Hinge - Steel part number PLR1902 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (126)
  • Q & A (27)
  • Videos (1)
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Polar Hardware Trailer Door Hinges - PLR1902

  • Ramp Door Hinge
  • Greasable Pin
  • 8-3/16 Inch Long Hinge
  • Weld On
  • Steel
  • Polar Hardware
  • 4 Inch Wide Bracket


Steel hinge for ramps or heavy access doors.

  • Plain finish for easier welding
  • Comes with grease fitting for long life & smooth operation
  • Made in the USA

Dimensions of hinge

1902 Polar Hardware Ramp Door Hinge - Steel





Video of Ramp Door Hinge - Steel

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




Video Transcript for Polar Hardware Enclosed Trailer Parts - Doors - PLR1902 Review

Today we're going to be taking a look at the ramp door hinge from Polar 00:00:05 hardware. This hinge is designed for ramps or heavy access doors on your trailers. It's made from a very strong and durable steel construction. It's going to have that plain or raw finish, which allows for easier welding for the installation. You'll notice that right here it does come with a grease fitting. That's going to allow for long life and smooth operation.

Once this is installed all you have to do is attach a grease gun to that, pump in some grease. That's going to lubricate the internal pin and it's just going to allow for really nice, smooth operation. Overall, it's going to increase the life of the hinge. A few measurements to go over with you real quick. The thickness of the plate right here is going to be 1/4-inch steel. Going this direction, that plate is going to measure 4-inches.

Going this direction, it's going to measure 2 1/4-inches. The length edge to edge, we're looking at a measurement of 8 1/4-inches. Then the ends are going to have a diameter of right around 1-inch. Really nice operation though. It's going to rotate all the way.

Very easy to do and again if that ever gets tight or whatever, hook up a grease gun, pump in the grease, it's going to lubricate the internal components. That's going to do it for today's look at the ramp door hinge from Polar hardware.


Customer Reviews

Ramp Door Hinge - Steel - PLR1902

Average Customer Rating:  4.9 out of 5 stars   (125 Customer Reviews)


- PLR1902
by:

My parts were promptly shipped, in good condition upon arrival. Perfect fit for my application, and have had no problems over the last year. Application was for a 2010 piece American car hauler rear door ramp hinges.



- PLR1902
by:

Exactly as advertised. I have yet to install but I am happy with the hinge purchase.



- PLR1902
by:

Shipped fast exactly what I ordered fix my trailer rear door . Heavy duty hinge awesome company to buy from thank you .



- PLR1902
by:

Great value on heavy duty hinges. I had a custom Bifold landscape ramp built. And used 8 of these hinges. Four at the body and four at the Bifold. Works great. Shipping was super fast. And packing was excellent. Looking forward to my next purchase with etrailer..



- PLR1902
by:

After having installed these hinges 1 year ago they still function great. I used the trailer for storing snowblower, walkway salt spreader and 4 wheeler for plowing sidewalks. They workes out great



- PLR1902
by:

Hinges are froze up (won't swivel) all 4 bad.


Comments
Thank you for your review. Were these used out in the elements? These items will need greased in order to keep functioning properly. If they are stuck I would spray lubricant like WD40 heavily on them over a period of a few days. If they are rusted then I would spray with anti-corrosive paint or lubricant. If they are deteriorating then they will need replaced.
-- Etrailer Expert Sierra K - 04/28/2021


- PLR1902
by:

Work awesome, just put them on a trailer used to haul larger mower .With the ramp they are perfect ! Thanks for asking !



- PLR1902
by:

Had to weld these to my frame, but over all very happy with this purchase!



- PLR1902
by:

I have ordered 2 of these hinges for my trailer. After 19 years, one of the original drop-down hinges finally gave out. Hopefully, with these hinges I can get another 20 years out of my trailer! They are stronger than the originals and should do nicely.



- PLR1902
by:

Very strong and great quality hinge. Will likely outlast the trailer I installed them on


Comments
Hinges are still holding up great. Would definitely buy again
Christopher - 03/23/2020



- PLR1902
by:

Ordered these to use on a landscaping trailer for a rear ramp gate that will hold at least 800 pounds got 3 of them to spread the weight out, seemed heavy duty and they are, these are big hinges in a good way. The zerk fitting is a great plus! makes it easier than fabricating your own hinges. The square plate makes it easy to align and gives you enough material to weld to.Price was goog shipping was fast, customer service is always excellent.


Comments
One year later they are still working perfectly. They have stood up well, can be greased easily, hold a lot of weight, over 800 pounds at a time have gone up this ramp using 3 of these hinges, no issues.
GQ-ROD - 12/14/2017



- PLR1902
by:

Extremely well made, heavy duty hinge. Solid and reliable!



- PLR1902
by:

This was exactly what we needed to complete our custom landscape truck ramp.



- PLR1902
by:

Replaced old one piece gate with new two piece gate for loading Polaris. These hinges are heavy duty and worked perfectly.



- PLR1902
by:

been a year and they work great on our heavy trailer ramp.....



- PLR1902
by:

One of the hinges on my trailer had rusted apart and the door wasnt functioning correctly anymore. I purchased a set of these hinges to replace all of mine. They were easy to weld in and a year later still function perfectly.



- PLR1902
by:

Super fast delivery!



- PLR1902
by:

Quality product, delivered quickly, zero complaints! I chose these hinges because they have a grease fitting and ample welding area. Very pleased with both the product and etrailer.com's customer service. I definitely recommend with no reservations. Thanks etrailer!



- PLR1902
by:

very impressed with the quick turn around from order to my door and product was exactly what I ordered!!! I will be using Etrailer again! Thank you!



- PLR1902
by:

Owned these a year so far and have had no issues. They are heavy duty and perfect for my 8x4 trailer.


Comments
Still going strong!
Casey R - 09/19/2019



- PLR1902
by:

quick shipping. Parts look like good qu ality



- PLR1902
by:



- PLR1902
by:

I'm refurbishing an enclosed trailer and etrailer made it super easy. I ordered new fenders, marker lights and replacement ramp hinges. I couldn't be more happy with the quality of the parts, the customer service and the great prices. I almost forgot the free shipping promo! I have seven trailers and etrailer will be my "go to" place for parts and accessories!



- PLR1902
by:

Product as pictured. Easy purchasing. Tracking was a plus. The only thing I would be interested in but it isnt a huge deal for my purposes, would be a weight rating on the description.



- PLR1902
by:

perfect fit and shipping was fast!


Comments
Great!
Lisa - 11/04/2020

27
133
Show More Reviews

Ask the Experts about this Polar Hardware Trailer Door Hinges

  • Installation of Ramp Door Hinge Polar 1902
    The Ramp Door Hinge # PLR1902 does require welding of both portions. The tab gets welded as you stated to one side and the outside cylinders get welded to the opposite side. I've attached a couple pictures to assist.
    view full answer...
    Image 1 for Image 2 for
  • Does the Polar Ramp Door Hinge # PLR1902 Have 2 Plates for Welding
    The Ramp Door Hinge # PLR1902 that you referenced does not come with 2 of the plates for welding. You will weld the plate to one surface and the outside ends of the pin to the other for installation. For a hinge that has 2 of the plates you would want the Polar Butt Hinge # PLR1005.
    view full answer...
  • Replacement Ramp Door Hinge For 6 X 12 Enclosed Trailer
    Thanks For the photos of your hinges. That helps a lot when we are trying to find something for a customer. I have attached a photo of a hinge, part # PLR1902 that may work for you. You can check out the photo and see the dimensions for the hinge. The hinge measures 8-3/16 inches long, the end pieces are 1 inch in diameter, and the plate portion measures 4 inches wide by 2-5/8 inches deep. This hinge is made of steel and even has a grease fitting to keep it lubricated for smoother...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Recommended Hinges And Ramp Assist For Steel Ramp
    For your ramp, I recommend a hinge like the Ramp Door Hinge - Steel # PLR1902 or the Dump Door Hinge - Steel # PLR1904-Z. Both of these have a built in zerk grease fitting. Then you can use springs like # RS16933RH and # RS16933LH. If you want further help in lifting and lowering, I recommend the Rack'Em Double Barrel Utility Trailer Tailgate Lift Assist w/ Chain - 200 lbs # RA-27C that can be used on either side or both.
    view full answer...
  • Capacity of Polar Enclosed Trailer Door Hinge
    The Ramp Door Hinge # PLR1902 isn't tested for a specific weight capacity. However, it is intended to be used on heavy trailer doors.
    view full answer...
  • Replacement Ramp Hinge Recommendation for Trailer
    For a set of ramp hinges with a grease fitting the part # PLR1902 would work well for you. Overall the hinge measures 8-3/16 inches long, the end pieces are 1 inch in diameter, and the plate portion measures 4 inches wide by 2-5/8 inches deep. I attached a review video for this hinge for you to check out as well.
    view full answer...
  • Pin Diameter on Polar Ramp Door Hinge # PLR1902
    The Polar Ramp Door Hinge # PLR1902 referenced in your question has a 1/2 inch internal pin diameter. As you mentioned, the outer diameter of the hinge is 1 inch. The steel hinge also features a grease fitting to allow for a long life and smooth operation. I have attached a short video demonstration on this product that you can also check out.
    view full answer...
  • Diameter of Post on Ramp Door Hinge # PLR1902
    The diameter of the post on the Ramp Door Hinge # PLR1902 that you referenced is 1 inch. I attached a picture that has several other dimensions for you to check out as well.
    view full answer...
    Image 1 for
  • Is Hinge Pin of Polar Ramp Door Hinge # PLR1902 Removable?
    The Polar Ramp Door Hinge - Steel # PLR1902 is not removable as removing that pin would compromise the zerk grease fitting and seals related to it. I confirmed this with my tech contact at Polar.
    view full answer...
    Image 1 for
  • Dimensions of Polar # PLR1902 Steel Trailer Ramp Spring
    The entire hinge is 8-3/16 inches long by 1 inch in diameter. If you take a look at the photo I've edited for you, you can see all the dimensions of the Polar Steel Ramp Hinge, part # PLR1902.
    view full answer...
    Image 1 for
  • Would Ramp Hinges PLR1902 Work as Replacement for H and H Trailer
    The ramp hinges part # PLR1902 don't have a specific weight rating, but I can tell you that by the sheer size of these things and their steel constructions that three of them would be just fine for a 4,000 lb rated ramp.
    view full answer...
    Image 1 for
  • Recommended Ramp Hardware to Add Ramp to 2002 Sundowner Gooseneck Horse Trailer
    We do not have the Ramp you need, but we do have the hardware you would need to add a ramp to your 2002 Sundowner Gooseneck Horse Trailer. You will want a ramp door hinge like the Polar # PLR1902. You will weld the outside cylinders of the hinge to the trailer and the center section will be welded to the ramp you are adding. Another option is to use the 3" Wide Continuous Stainless Steel Hinge, 6' Long # SH300. To hold the ramp in place for travel, I recommend the 36" Lock Side-Door...
    view full answer...
  • Recommended Ramp Hinge to Support Weight of Ford 4000 Tractor
    I recommend looking at the Polar Ramp Door Hinge # PLR1902. This is a heavy duty steel hinge that features a plain finish for easier welding and also includes a grease fitting to allow for a longer life and smoother operation. This hinge does not have a specific weight rating, but 3 of the hinges on your ramp door will be more than enough to support the weight of your Ford 4000 Tractor. I have attached a short video demonstration on this product that you can also check out.
    view full answer...
  • Hinge Recommendation to Make Fold Down Stage on Trailer
    Yes, the hinge part # PLR1902 will work well for you. If you used 6 of these on a fold-out style stage it would have the capacity needed and would operate well for you.
    view full answer...
    Image 1 for
  • Are Ramp Door Hinges for Trailer Available?
    We do carry ramp door hinges though they are not made specifically for a Snowpro trailer. The ramp door hinge # PLR1902 is steel and gets welded on; I've added a photo showing the dimensions of this hinge as well as a link to a video review for you to take a look at and a link to our selection of hinges.
    view full answer...
    Image 1 for
  • What Could Cause Ramp Door on Enclosed Car Hauler to Become Out of Line
    It is difficult to say what exactly may have caused the ramp door on your enclosed car hauler to come out of alignment. It could be a bad hinge or something could have been damaged on the door itself with the previous owner, which over time lead to the door coming more and more out of line. We do offer some ramp door replacement parts, such as the Polar Hardware Ramp Door Hinge # PLR1902 if you find that the hinges should be replaced. I have included a link that will take you to our...
    view full answer...
  • Dimensions of the Ramp Door Hinge part # PLR1902
    I went out into our warehouse to get the dimensions of the Ramp Door Hinge part # PLR1902 that you are looking for. Overall the hinge measures 8-3/16 inches long, the end pieces are 1 inch in diameter, and the plate portion measures 4 inches wide by 2-5/8 inches deep.
    view full answer...
    Image 1 for
  • Replacement Ramp Hinges for Enclosed Trailer
    If your trailer is brand new and recently purchased ideally you would return to the dealer to have the ramp corrected. The amount of misalignment you describe seems excessive for a brand new trailer. If the trailer is parked on uneven ground the ramp may tend to lean to the low side; this happens just from the weight of the ramp twisting the hinge. If the ramp leans over even on flat ground then there may be damage to the hinges that secure it to the trailer structure or the ramp itself...
    view full answer...
    Image 1 for
  • Door Hinge Bracket with 4 Inch Width
    We don't have exactly what you are looking for. The # PLR1904-Z you referenced is 3-1/8 inch without the strap. The best other option is the Ramp Door Hinge - Steel # PLR1902 which utilizes as different hinge style and welds flat. It is 4 inches wide but without the bend. These are the only ramp door and dump door hinges we carry.
    view full answer...
    Image 1 for Image 2 for
  • Ramp Hinge PLR1902 For Making Swing Out Trailer Barn Doors
    The Ramp Door Hinge # PLR1902 that you referenced could swing out as far as you are needing so it would work well for you. The slide door bar lock assembly part # 305736 can also be cut down as needed as well. Then for a mechanism to lock the door open you could use a rubber socket and plunger set like the part # PLR64-66.
    view full answer...
    Image 1 for
  • Ramp Door Hinges for Toy Hauler
    For your butt hinge, I recommend using the Paneloc 5 Knuckle Butt Hinge - 2-1/2" Long x 2-1/2" Wide - Stainless Steel # H674-200U. The pin diameter is 3/16 inch. You may want to use more than 5 depending on the weight you will be placing on that ramp door. For most toy haulers, a better option is to weld on the Polar Ramp Door Hinge - Steel # PLR1902, which has a built in grease zerk for easy maintenance. This is my recommendation for a stronger hinge for a ramp door.
    view full answer...
  • Is There a Weight Capacity for the Polar Strap Hinges
    I have reached out to my contact at Polar before asking about the weight rating of their straps, like part # 2512, and I have been told that they don't really have a weight rating. There are so many different variables into the equation that it is next to impossible for them to give an accurate answer. I can say that they have directed me towards the Ramp Door Hinge # PLR1902 for heavier duty applications though. This is a much better application for a ramp as the stap hinges are meant...
    view full answer...
  • Recommendation for Trailer Ramp Hinge that Can Handle a 500 Pound Motorcycle
    For your ramp and 500 pound motorcycle I recommend using a couple of ramp hinges, # PLR1902, sold in quantities of 1. This is a heavy duty ramp hinge and has a grease fitting so you can easily keep It lubricated. I am not sure how wide your ramp is or the available space you have to mount a hinge but the overall length of this hinge is 8-3/16. For something a little shorter we have dump door hinge # PLR1904-Z which is under 5 inches wide. I have linked videos on both of these hinges for you.
    view full answer...
  • I'm Looking At An Aluminum Butt Hinge For My Horse Trailer Ramp, Is This A Good Hinge?
    An aluminum butt hinge like Polar's # PLR1005 is a durable hinge that could work great on your horse trailer. My only concern with this hinge for your application is if your frame is steel instead of aluminum which could cause galvanic corrosion because they are dissimilar metals. If your frame is aluminum, I think this is a great choice and you will just need to be careful welding. I don't know how many you would need for your application, but most trailers use a minimum of 3 or 4....
    view full answer...
  • Will Polar Hinge # PLR2216 Support a Ramp Door?
    The Square Corner Hinge with Reverse Bracket - Zinc Plated Steel - 16" # PLR2216 are not rated for a weight limit. For a ramp door, I recommend instead using the Ramp Door Hinge - Steel # PLR1902 which is a much thicker metal and a stronger pin. This is designed for that function and needs to be welded in place. The Square corner hinge although easier to install would risk hardware failing as they aren't designed to hold weight beyond the door itself.
    view full answer...
  • Do Any of the Continuous Hinges Have a Weight Capacity
    Polar doesn't have any weight ratings on their hinges, but if you alternated the use of a continuous hinge, like part # H300, and a Ramp Door Hinge, like part # PLR1902, it should work well under the 800 lb load you mentioned. I confirmed this with my contact at Polar . Attached is a list of our available door hinges for you to reference as well.
    view full answer...

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Installed by:
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