Side-Door Bar Lock Assembly - 55" Long
(180 reviews)
Price: $66.81
In Stock
Side-Door Bar Lock Assembly - 55" Long
Item # 3057-55
Retail:$70.95
Our Price: $66.81
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- All Info
- Reviews (180)
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- Videos (3)
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Polar Hardware Trailer Door Latch - 3057-55
- Cam Door Latch
- Latches
- 55 Inch Long
- Lock Not Included
- Polar Hardware
Cam-door style lock is ideal for use on trailer side doors that may be smaller than rear doors. Features 55" long pipe and rust- and corrosion-resistant zinc coating.
Features:
- Cam-door style lock is ideal for use on trailer side doors that may be smaller than rear doors
- Rust- and corrosion-resistant zinc coating
- Mounting hardware not included
- Overall pipe length: 55"
3057-55 55" Long Side-Door Bar Lock Assembly
Video of Side-Door Bar Lock Assembly - 55" Long
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Polar Side-Door Bar Lock Assembly Review and Installation
Hi there, trailer owners. Today, we're going to be taking a look at Polar's side-door lock assembly. These are available in three different sizes. You can get it at 36, 45 or 55 inches long. And just like the name says, this is a locking door latch assembly. It is mostly used for the side for your smaller doors, but on some of your enclosed trailers, you may have similar styles like this at the back as well.
We just got done replacing one that was originally on this trailer that had rusted off and our nice new one is holding it nice and tight. We've got considerably more pressure. So our door's not vibrating around as much as it used to. We'll be replacing the one on the other side here as well. But we wanted to give you a comparison of how your old ones might look.And with this old style here, you can see it's all rusted up, squeaks a lot.
It's kind of difficult to move. And on the other side, well, that one, the handle came completely off. Our new one's going to be nice, smooth, and easy to operate, simply unlatch it. It also offered more pressure than our other one did, which keeps our door closed. Previously, when we had both latches shut before our handle broke off, this door would kind of rattle around.
It really didn't stay very well shut with even just the new one on the one side, it's significantly stronger and feels more secure and shut. It offers a steel construction. So it's going to be solid and durable and to prevent rust and corrosion like our old one's had. It has a zinc plating on it, which is going to keep all that moisture off and give us a nice finish over it that's going to last a long time and they're also a fairly standard size.When we replace this one, our bar here was able to line right back up with the existing holes. It doesn't come with hardware, so you will need to reuse your old hardware or purchase new hardware if you want it to be nice and shiny.
I do highly recommend carriage bolts if you are replacing the hardware so that way it has a nice button look appearance. And when you go to tighten down the nut on the other side, it's being held out here. It also comes with a new lock side for your handle. It's got a nice, smooth pivot and holes in both the top and bottom. So you can put a padlock through when you've got it all latched and closed so nobody can get inside. It's a pretty straightforward and simple installation.In most cases, you won't have to do any drilling, but sometimes you will if there's a slight difference on yours. We're going to go ahead and show you how to install it now. One of the things you might consider, if you've got a enclosed trailer that you want to keep out, any moisture and stuff, maybe like a side door on a toy hauler or something. You may want to put some silicone or seal it on the backside of this to keep out any moisture. So you can see why we're going to be replacing our old one here. Rust has got the better of it. We're going to go ahead and take our old assembly off here and put a whole new assembly on. It doesn't come with new hardware so we will be reusing our old bolts and they come as a quantity of one.So we're going to go ahead and get two of them and replace both sides. That way we'll have a matching look here at the back of our trailer. And we don't have to worry about this happening to the other side as well. We're now here on the inside of our trailer, where we can see our hardware here. On some of your trailers you may have a trim piece here that you need to remove. Ours doesn't have any kind of enclosure on it, covering it up. And we're just going to remove these carriage bolts. There's a nut on that we're going to take off on each one and we're going to use a 1/2 inch socket to do so.And then we can just slide it off of here. And it's not a bad idea just to clean up the area behind where your old ones were, we're just using a little bit of alcohol to clean it up, but you could use soap and water and a brush, just like you clean your car. We can now take our new one and put it in place. We want to make sure that the hinge here is on the outside and we're going to just take our carriage bolt, slide it through and then slide it through here. You want to make sure that you're using carriage bolts because you see the holes here are cut out in a square. That way you don't have to hold it while you're tightening it down. And just put a few turns on it, you don't need to go crazy. It's just going to make, installing the rest of our hardware a lot easier if we don't have to hold it up.From here, we can just install the rest of our bolts by lining up the holes again and reinstalling the hardware. We can then go back and tighten our bolts down. So we're just going to take these off on the backside. Ours are nuts that have Torx bit openings in them, and we're going to use a T55 Torx for ours, but yours could potentially be something else. Now, the assembly might get a little stuck in there, that's no big deal. We can just knock it through with our hammer and an easy way to ensure you don't damage the threads. Now I know this is an old one, so we're not going to be reusing it anyway. We can thread our nuts on there, and that usually is enough to help us tap it, just to kind of get it started.We can likely now just go to the other side and pull the assembly office. We've made a little gap between the door and the latch assembly. So now we can easily just kind of work it out. If you have a lot of rust and stuff on here, sometimes it's easier to use an abrasive pad to remove the material rather than some alcohol on a cloth. So now we've got our new latch assembly and I went ahead and checked it with our old one and unfortunately our bolt holes aren't going to line up on this one. So we are going to have to drill a new hole for our new latch. So an easy way to ensure that it's going to line up properly we're just going to put it on our bar, push it in place.And then we're going to try to use one of the old holes as a template if we can. Looks like it's going to line up pretty good with that bottom hole. So since it's going to line up with our bottom hole, just fine, we're going to go ahead and use that bottom hole. Then we'll just set this thing up straight after running it through and use the top hole as a template. So I've gone ahead and just slid the bolt in. I didn't tighten it down yet. We're just using it again as a template. So we're going to line this up right below our other hole. And then we're going to go ahead and make a little pilot mark.We can move our bracket out of the way, and then just finish drilling this out. We're using a 5/16 drill bit. Once you get your top field out, we're just going to put that back in place. You don't want to put your lock assembly on it and slide your carriage bolt through. And we're going to walk around to the other side, to install our nuts onto our bolts. Here on the other side, we're just going to start our nuts, trying to be careful not to push the hardware back through. And then we can just tighten them back down.Now that we've got it tightened down and installed, let's go make sure that it's going to work properly. We've got a good tension on our door it's going to hold it shut, and our latch works properly. And you might be wondering what we're going to do about this hole here. And you've got a couple of options. You could run a nut in a bolt through it, but it looks like that's going to interfere with our latch mechanism. So we're just going to be filling it up with some silicone. You can get black silicone here at etrailer.com if you think you're going to need some. And we're just going to seal that up. You can also fill in the inside if you want to ensure that you're completely sealed. And that completes our look at the Polar side-door bar lock assemblies.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
- Wrong item was ordered
- etrailer mistake
- Product did not meet expectations
Customer Reviews
Side-Door Bar Lock Assembly - 55" Long - 3057-55
Average Customer Rating: 4.9 out of 5 stars (180 Customer Reviews)
Cam-door style lock is ideal for use on trailer side doors that may be smaller than rear doors. Features 55" long pipe and rust- and corrosion-resistant zinc coating.by: Chris B11/13/2022
Wow! Side door bar lock assembly arrived in great condition and much faster than I anticipated. I’m very happy with the build quality and high service level from etrailer. I highly recommend them.
by: Stuart02/24/2024
Purchased the side door bar lock after the original one got bent in an altercation with a gate post.
The bar fitted perfectly was easy to install and has given flawless service ever since.
Easy order process, quick delivery and well priced.
Thank you etrailer.
by: Ed M.03/19/2018
Overall a good product. I installed it over an RV style door on my enclosed trailer.
Cheap stamping of the latch itself and lack of quality control leaves me needing to dremel out the opening to correct the alignment of the hole so that a puck style lock can be used. A little disappointed here...
by: Theodore01/31/2024
Well, be honest, I am not real happy with it. I think the mechanism inside comes loose the remote quit working after a couple of months I am unhappy with it, but it does lock my trailer.
by: Jayme04/26/2023
Installed it the day I received it, nice heavy quality item!
Jayme
4/28/2024
Excellent! Easy install and holds up very well!
by: Bob L.07/20/2014
Great quality, and a fair price. Shipping is always a detriment these days. Still, it's exactly what I've been needing to secure my instruments. Clearly Etrailer, is seeking repeat customers with there heads up on back orders, and follow up E-mail.
Thanks, Bob L.
by: Rich 09/13/2023
The product was delayed a few months because of the manufacturer, however Etrailer continued to send me updates through Email letting me know the status of my order. I never felt like I was left hanging. When the product finally did arrive It was well packaged and just what I ordered. I then recieved a follow up Email making sure it was what I ordered and delivered in good condition. I will continue to do business with Etrailer because of their excellent customer service and my trust in the products they sell.
by: Jen M05/20/2015
The service we received was excellent. Our Bar Locks arrived much faster than expected and were exactly as described. They were installed easily and a perfect fit. The only problem is now the shiny new bars don't match the rest of the rusty trailer.
by: Jacob 12/28/2023
Etrailer were the only people that had the rod length I need, and the assemblies came exactly as described. Order was also shipped swiftly, and I really appreciate it.
by: Joe D.04/14/2017
Product came very quickly. I had two barn doors on a dump trailer that I wanted more support for closing, so I used this instead of a clasp. There is pressure pushing out from inside, and this keeps it solidly closed. Also having the long handle gives a little more leverage to push up and allow it to open with the pressure against it. I would definitely recommend this product to someone looking for a longer, more secure door latch.
by: Kress10/22/2023
Not quite the same as the original. It does work. Mounting holes need to be enlarged.
by: Scott R05/01/2017
This was also used on our custom landscape truck to keep ramp door shut.
by: Mike05/05/2020
Fantastic hardware at an affordable price. Quality product. We have ordered 11 of these latches to weld onto a converted shipping container - turned storage units. We anticipate doing a bunch more orders of the same.
Very friendly staff that is quick to respond. Shipping was quicker than anticipated.
by: Sean02/28/2024
It was easy to install and works as it should.
by: Gregory04/21/2023
I like it! An excellent mechanism and easy install. I needed six 5/16 × 2 1/2" carriage bolts for my installation. I did use nylock nuts, but that is probably overkill. And I cut and drilled a metal backer plate for the inside of the door because it is hollow core.
In my installation, my door surface is slightly raised. I had to rebend the movable locking arm to accomodate the thickness. I anticipated this when I ordered the bar lock and it was straight forward with bending tools- not everyone will want to try this and it is not needed on a flush fitting door.
I installed the bar lock over my existing flush key latch, for additional security.
The attached pictures show the trailer/door before the install, and the door with bar lock after install.
by: Mark 04/11/2024
Good product, fast shipping, and fair p rice!
by: Matt01/22/2024
Still looks and works great.
by: Kenneth 03/16/2023
Website was fairly simple to navigate. Placed the order and recieved the product within a few days. Installation was simple and it appears to work great at this time.
by: Horatio10/30/2023
The quality of the product is excellent. It really surpassed my expectations by far.
by: Thomas 12/09/2023
Perfect fit, took minutes to install
by: Kevin j06/22/2017
Changed a front dropdown hybrid camper tent door from screw clamps to these normal door latches for better sealing.
Not quite as heavy metal as older latches, but adequate for task and thick enough to weld. Robot welding is beautiful, some spatter berries to remove. Plastic cover plugs on ends were distorted damaged and ugly so I tossed those. Overall good rpoduct and worked well for intended purpose. Good price for the quality received.
Kevin J.
6/24/2018
Replaced screw clamp latches on front of a fold out camper with these cam locks. Better seal and more secure. I had to cut and weld to get length I wanted but overall worked well. Still rust free. Needs some oil on hinges occasionally, as to be expected. Would buy again if needed.
by: Steve H07/29/2019
I purchased this enclosed trailer lock system to use on my tool storage shed after being broken into. This thing is great. It has secured my shed and the way it mounts, they'd have to tear the shed down in order to get into it. The parts arrived on time, they were complete and I've been using it for a year. I live in rainy country and there are no signs of rust or aging at all. Great part and great value.
Steve H.
7/31/2020
I love this lock system. I put it on a tool shed to prevent theft. It’s tough and smooth and easy to use. I live in the Pacific Northwest and it is holding up remarkably to our wet weather. Not a spec of rust anywhere.
by: Richardh09/21/2023
Great product and just what I needed at a great price. Highly recommended. Thanks
by: Chad 10/06/2023
Excellent communication and fast shippi ng
by: Tania08/08/2023
Receive promptly in great condition. Looked just like the pictures. Thank you
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See what our Experts say about this Polar Hardware Trailer Door Latch
- Does the 55 inch Door Lock Side-Door Bar Lock Assembly # 3057-55 Include Door Lock PlateYes, the door lock plate that you see in the pictures for the part # 305736 is included with the 55 inch version of the lock part # 3057-55.
view full answer... - Replacement Cam Latch Recommendation for Trailer with Damaged HandleI wish we had just the rubber cover of the cam door latch that you need, but the only solution we have would be a whole new door latch like the part # 3057-55.
view full answer... - Side-Door Bar Lock Assembly With Offset Handle AvailabilityFor an offset handle you will want to use the Cam-Action Lockable Door Latch Kit # PLR3057 that you can use to attach to a length of schedule 40 3/4" pipe. You will be able to have the hinges and latch welded in place where you need to ensure that the handle is where you want it.
view full answer... - Is 55" Lock Side-Door Bar Lock Assembly # 3057-55 the Same as # 305736 Except for Longer LengthYes, the 55" Lock Side-Door Bar Lock Assembly # 3057-55 that you referenced would be the correct replacement handle to replace what is on your trailer. Its the exact same thing as the # 3057-36 that you also referenced except with a 55 inch length bar instead of 36 inches like the # 305736.
view full answer... - Recommended Replacement for Imperial 55 Inch Side-Door Bar LockI do have an option for you but we don't carry Imperial products. That said, the Side-Door Bar Lock Assembly part # 3057-55 would be an excellent replacement for this. The only real difference is the mounting pattern is not the same so some small modifications will be needed but this is our best option for you.
view full answer... - Availability of a Door Handle for a 2007 Circle J Horse TrailerYes, we currently offer a couple door handles that could would work with your 2007 Circle J horse trailer. If you are looking for a rear door handle, the Redline lock bar assembly # 305736. It's has a 36 inch long pipe. Or the Redline # 3057-55. It will have a 55 inch long pipe. If you are looking for side door locks, the Redline locking steel flush door latch # L3980 is easy to install and has a rustproof finish. This handle will work on doors up to 1-1/16 inches thick and can be locked...
view full answer... - Does the Side-Door Bar Lock Assembly part # 3057-55 Come in a 65" LengthThe 55" Side-Door Bar Lock Assembly part # 3057-55 is the longest that I have available for this application. A possible solution for you would be to use the Bracket Assembly for Polar Economy Side Door Lock part # PLR3057-100 which would allow you to add your current length bar and handle to add to these and restore your factory set up. Since these are designed to hold the door shut it really doesn't matter if it is 65" or 55" as long as it holds the door shut. I do understand however...
view full answer... - Trailer Cam Door Handle that Uses Heavier Pipe than Stock SystemI actually have a better solution for you than using # 3057-55. You could instead use # PLR458-018 and then supply your own pipe. That way you can get as heavy as a pipe that the system will allow. Or a solid bar for that matter. The pipes on the pre-fab systems such as # 3057-55 are going to be the same as what you have now. On # 3057-55 the bolt holes at the hinges are spaced 3-1/4 inches apart on center. And the distance from the bottom hole on the bottom hinge to the top hole on the...
view full answer... - Carriage Bolt Size Recommendation for Cam Door 3057-55You will want to use 5/16 inch carriage bolts and matching washers and nuts to install the # 3057-55 that you referenced. Your local hardware store would be where you would need to go to find them. You will want to pick bolts based on the thickness of your trailer wall.
view full answer... - How to Prevent Yourself from Getting Locked in a Trailer that has a Cam-Door LockYou would just need to lock the latch shut after you opened the trailer. That way the only way someone could close the door and lock it would be to first unlock the latch. Most likely you were planning on using a padlock to lock the door closed like the part # 131D, so when the door is open you would just need to put the padlock back on the latch and you would prevent the latch from getting shut while you are in the trailer.
view full answer... - Replacement Lock Assembly with Keys for RetraxPRO Tonneau CoversWe do have the Replacement Lock Assembly with Keys for RetraxPRO Tonneau Covers item # RTX25QR that may fix your problem. If you could pull a model number off of your cover I would be able to confirm if this is the correct replacement part for your truck's cover. It fits all manual RetraxPRO MX and RetraxPRO XR tonneau covers.
view full answer... - Availability of 60 Inch Cam-Door Style Lock Kit The 55 Inch Lock Side-Door Bar Lock Assembly # 3057-55 referenced in your question is also available in a 36 inch size, with part # 305736, however there is not a 60 inch unit currently available. I instead recommend looking at the Polar Cam-Action Lockable Door Latch Kit # 383200. This steel cam-action door latch is a more universal design that does not include the 3/4 inch inner diameter pipe. This will allow you to use this kit with a pipe that features a length of your choice, as...
view full answer... - Can the Length of the Pipe be Adjusted on 55 Inch Lock Side-Door Bar Lock AssemblyThe pre-assembled cam door lock # 3057-55 is already all put together and can't easily be modified and you may end up having to weld anyway. So I would just go with the universal one, # 383200, and having someone weld it all up for you for a nominal fee. There is likely a machine shop or muffler shop that can do that for you. The other option is to go shorter, # 305736, which is a 36 inch bar.
view full answer... - Cam Door Lock Solution for Trailer RampYou could use a cam door style lock like the part # 3057-55 with the pad lock # ML40D and you'd be set.
view full answer... - Availability of Polar Hardware 55 Inch Lock Slide-Door Assembly in Black The Polar Hardware 55" Lock Side-Door Bar Lock Assembly # 3057-55 that you referenced is not currently available in black. This assembly, along with the other door lock parts from Polar Hardware, feature a rust-and corrosion-resistant zinc coating. I have attached a short video demonstration on this product that you can also check out.
view full answer... - Replacement Rear Cam Door Lock Recommendation for a 2012 Voltage 3900If you have a bar style door like the part # 3057-55 that you referenced on your trailer you could pretty easily replace it with the # 3057-55. The hinges may match up but we don't know that for sure. You can check out the picture I attached that has all of the dimensions of the lock for you to check out as well. If you wanted to provide your own pipe so that the lock you get matches the same length as what you have you could use the part # 383200 instead. You would need a pipe with a...
view full answer...
- Distance From Mounting Holes To Center Of The Vertical Pipe on Side-Door Bar Lock Assembly 3057-55The mounting holes to the center of the vertical pipe on the Side-Door Bar Lock Assembly # 3057-55 is roughly 1-7/8" Do note that since this is a welded assembly you may see slightly different measurements on your exact item.
view full answer... - Availability of Mounting Hardware for the 55" Lock Side-Door Bar Lock Assembly # 3057-55We actually don't carry the mounting hardware for the 55" Lock Side-Door Bar Lock Assembly # 3057-55. The reason being that there are so many different applications it wouldn't be beneficial to have one set of hardware for all installations so we leave that up to the discretion of whoever is doing the installation.
view full answer... - Availability of a 55 Inch Side Door Bar Lock AssemblyWe do indeed have 55 inch bar locks, part # 3057-55. You can order them using the provided link.
view full answer... - 55 Hinge Door Lock Assembly For Left and Right Side Of Haulmark Enclosed 16 TrailerThe 55" Side-Door Bar Lock Assembly # 3057-55 you found can be used on either the left or right side. If you are looking for something different please let me know and pictures are very helpful.
view full answer... - Mounting Bracket Width of the 55" Lock Side-Door Bar Lock Assembly # 3057-55I went and measured the mounting bracket of the 55" Lock Side-Door Bar Lock Assembly # 3057-55 that you referenced and found that the actual bracket is 1-1/4 inches wide, but if you count the hinge portion that sits a bit above bracket the overall width is 2 inches.
view full answer...
- Cam Door Lock For Use On Workshop DoorsA cam-door lock will work great for what you are building. The 55" Lock Side-Door Bar Lock Assembly, # 3057-55, will only give you a portion of the assembly you need. I recommend the Universal Cam-Door Lock for Enclosed Trailers - 1" Keeper, # 383200, for your application. This will give you everything you need other than the 3/4" inner diameter pipe. That will allow you to customize the locations for the cams to best fit your doors. These locks do not come with the bolts to secure...
view full answer... - Mounting Hole Spacing Between Cam Door Lock # 3057-55 and Existing Door Lock Don't Match UpAcross different brands and sizes of bar lock assemblies, such as # 3057-55, I am certain there is more than one possible bolt pattern. What I recommend is a version that does not come with a bar such as # PLR158 so you can provide your own bar at the appropriate length. Otherwise you could line up either the top set of holes or bottom set of holes on the door and then drill new ones for the other bracket for # 3057-55.
view full answer... - Mounting Hole Dimensions for the 55" Lock Side-Door Bar Lock Assembly # 3057-55 I went and pulled a 55" Lock Side-Door Bar Lock Assembly # 3057-55 from our warehouse to get the dimensions you requested. The length from the top mounting hole of it down to the bottom mounting hole is 53-1/2 inches, the distance between the holes of the mounting brackets is 3-1/4 inches, and the distance from the center of the handle to the top mounting hole is 26-3/4 inches.
view full answer...
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Chris B.
11/14/2023
Excellent quality. Still looks and works like new!