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  1. Trailer Door Latch
  2. Polar Hardware
  3. Cam Door Latch
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  5. 36 Inch Long
  6. Lock Not Included
Cam-Action Lockable Door Latch w/ 36" Pipe for Enclosed Trailers - Zinc Plated Steel

Cam-Action Lockable Door Latch w/ 36" Pipe for Enclosed Trailers - Zinc Plated Steel

Item # 305736
Retail:$72.30
Our Price: $61.99
You Save: 14%
Trailer Door Latch
Shipping Weight: 7 lbs
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Trailer Door Latch 305736 - 36 Inch Long - Polar Hardware
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Cam-action door latch with pre-installed 1" diameter pipe is ideal for side doors that are smaller than rear doors on your trailer. Double-action handle protects against jarring while driving. Non-removable pin helps keep your cargo safe. Great Prices for the best trailer door latch from Polar Hardware. Cam-Action Lockable Door Latch w/ 36" Pipe for Enclosed Trailers - Zinc Plated Steel part number 305736 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Polar Hardware Trailer Door Latch - 305736

  • Cam Door Latch
  • Latches
  • 36 Inch Long
  • Lock Not Included
  • Polar Hardware

Cam-action door latch with pre-installed 1" diameter pipe is ideal for side doors that are smaller than rear doors on your trailer. Double-action handle protects against jarring while driving. Non-removable pin helps keep your cargo safe.


Features:

  • Cam-action door latch with pre-installed pipe is ideal for side or small rear doors on utility trailers, vans, and trucks
  • Bridge-type hasp helps prevent accidental opening and ensures safe latching action
    • Can be locked with padlock (sold separately)
  • Double-action handle assembly ensures simple, secure latching and helps protect against in-transit jarring
    • Flip the handle keeper on the hasp up and lift the handle
    • Rotate the handle to either release or engage the cams
  • Non-removable pin ensures maximum security to keep your cargo safe
    • Helps prevent tampering and removal of door
  • Reversible design allows the latch to be used on left-hand or right-hand doors
  • Zinc-plated steel construction is corrosion resistant
  • Black vinyl handle provides a smooth and comfortable grip
  • Simple bolt-on installation
    • Mounting hardware not included
  • Made in the USA


Specs:

  • Hasp dimensions: 5-1/8" tall x 2" wide x 1-3/4" thick
    • Distance between mounting holes (center to center): 4"
    • Mounting hole diameter: 3/8"
    • Lock hole diameter: 1/2"
  • Bracket dimensions: 4-1/2" tall x 4-1/8" wide
    • Distance between mounting holes (center to center): 3-1/4"
    • Mounting hole diameter: 3/8"
  • Handle length: 14"
  • Pipe dimensions: 36" long x 1" diameter


Product shown with lock (lock not included)

Product shown with lock (lock sold separately).



3057-36 Polar Hardware Side Door Bar Lock Assembly Weldment w/ 36" Pipe





Customer Satisfaction Score:


Customer Reviews

Cam-Action Lockable Door Latch w/ 36" Pipe for Enclosed Trailers - Zinc Plated Steel - 305736

Average Customer Rating:  4.7 out of 5 stars   (521 Customer Reviews)

Cam-action door latch with pre-installed 1" diameter pipe is ideal for side doors that are smaller than rear doors on your trailer. Double-action handle protects against jarring while driving. Non-removable pin helps keep your cargo safe.

by:

Item was as described, well made and performs flawlessly. It matched the rear door latches and adds confidence that items being transported or stored in the trailer will remain secured. As others have stated use 5/16 carriage bolts. I found for my use 2-1/2" bolts were way too long. Therefore, I cut them flush and siliconed over them just for good measure. I used 5/16, 2" fender washers with nylon lock nuts. In addition, I reenforced the back walls and door with steel slotted flat bar. I drilled one hole over size to ensure fit between the mounting bolts. I highly recommend this product from etrailer. Always fast shipping and unmatched customer service. You can definitely buy with confidence from etrailer. Great company and staff!



by:

Thanks for the follow up. We just bought a Look 6' x 12' cargo trailer that only had the in-door lock on the side door. Of course we wanted to beef that up and in searching found your site. After reading the reviews we ordered the #305736 36" side door bar lock assembly on 1/20 and received it 1/22. Great! We installed it the next day in about an hour. It went on with minimal effort (drilling the holes was the worst) and looks as if it came on the trailer. We did install the hinge side over the door trim and used backer plywood inside with oversized washers and locking washers. We did the same for the door bracket. The pictures on your site from customers helped us, so we have attached a couple of our own. Thanks e-trailer! The Wheelers

The W.

1/29/2015

This product still works great and looks like new! We will go to you first if we have any other needs.



by:

Cut up my wife’s cutting board to make a spacer for the side door, other than that piece of cake. Much better than the original latch with a padlock.



by:

I just attached the 36" latch bar. it only took about 30 minutes. Took longer to make sure it was positioned right and not to impede on the rv latch. I included a small bracket on the door as well. Latch hardware seems better the originals on back. 5/16" carriage bolts are needed. I used 2 1/2" then cut off anything past the nut. Pictures included.

Steve S.

12/9/2013

Michael,Im doing exactly what you did putting this bar lock over an RV style door. The door is about 12 from being flush with the trailer side and it looks like yours may be too. Did you bend the strap to get it to lay flat against the door? I thought of spacing out the hinge plates so theyre flush with the door but dont think that would look good.Also, did you remove the rear lip on the aluminum trim the hinge plates are mounted over, space under the hinge plates, or just mount over it?Thanks,Steve

Michael

12/27/2013

Steve,there is an aluminum trim around the rv door, I just bumped the hinge of the bar to the closest lip of that alum. trim to the door basically mounting over the top of the trim -so on top of the left side bump and bumped the right side if that makes sense. it kinda naturally fits. the bar lays nice and tight to the door by just mounting it ad is. Add some metal straps on iside of door mount to beef that up. I used 2 or 2.5 inch bolts with oversized washers on inside alum. jamb and cut off excess bolt and grindedsanded smooth to nut. I siliconed the gaps on the outside above hinge because it wont sit flat due to the alum. trim so water doeant get on by bolts. Hope that helps.

Patrick B.

12/28/2013

Thanks for coming back and following up!

Michael K.

10/24/2014

Working great. Would order from you again.

Scot S.

3/5/2015

Is there a weak point created when bolting the hinges so close to the edge of the door opening? Could you install one of these by moving the whole assembly to the left, thus creating room for hinge backplates? I guess you would have to lower the mount point as well, to avoid the doors backplate from hitting the factory lock and use a shorter but wider door backplate.I assume you feel your hinges are secure. I have yet to take ownership of my trailer so I dont know what kind of stud is framing the door.I am so happy this accessory is available. I really didnt notice the pitiful side door lock until after I purchased my trailer. A crowbar and about 5 seconds is all it would take to get inside!

Patrick B.

3/9/2015

Usually these latches are not positioned so closely to the edge of the door. Most of the time, the hinges of the handle side and the latch for the handle are set equidistant from the edges of their respective doors.


by:

E-trailer did an excellent job of shipping and handling of the product sent to me. It is of high quality and should last for years. It was delivered when they said it would be and I have installed it. Quite happy with it but wish that they would stock a 45" bar lock

Les S.

8/31/2016

The latch assembly is exactly what I needed for the shed that I built to house my small refrigerator. The critters or other unwanted cant get in.



by:

Should include hardware,especially since the bolt holes are not universal to all trailers. Plus had to put in a spacer because handle wouldn't shut properly.



by:

We recieved our door-bar on Thursday Evening, and Friday I installed it in about an hour. I purchased $7.50 worth of carriage bolts & washers & ny-lock nut. 2.5 carriage bolt for the 36" rod hinge & 2" for the door. Our older Aluma trailer door lock with the "rod & lever" closure was not keeping the door completely closed plus the keys are obsolete and needed a new key.
With this set up my doors stay sealed to keep out dirt & dust and I can use any heavy duty lock. (Lock upgrade purchase soon) Thanks for fast delivery service too. Odered on Monday & recieved on Thursday!
Plus we love our 1.25 receiver hitch for our VW Jettawagen which we use to haul our bicycles! (purchased in October). We Paid $75 to have it professionally installed but saved $100 on the hitch.



by:

Fit pretty well after some light modification but much better made than my factory 2023 Kauffman trailer came with.



by:

Used it on a enclosed trailer side door. Works perfectly.



by:

Installation was very easy. The handle is solidly built. Excellent addition for added security on my trailer



by:

Pretty nice product. Appears to be made in the USA by Polar. One of the welds is what I would call sub par, but the rest look OK. Easy install on my cargo trailer's side door. Takes 5/16" carriage bolts.



by:

One hinge was noticably crooked on one end of one side. Looked like [crap] on the trailer. I had to modify it to clean it up. Poor craftsmanship on that one.



by:

Well built unit. Every bit as good as the latches that came on the trailer originally.



by:

every order from eTrailer has arrived early and in perfect condition. The products always exceed expectations.



by:

here is a pic of the trailer I built, used the products from your place. started with a simple
utility trailer, and build this enclosed trailer.

Ryan

3/28/2016

Ed- awesome build. Im building something very similar. Where did you get the trim for the door so it can seal? Also what about the larger top trim?



by:

Never use U P S they did not come up drive to deliver they put it behind a tree rite at the road U P S are the Laziest people I ever delt with I have a business and Never will use them



by:

Came as described, and in the time frame described(less than actually). Good customer service!



by:

Great replacement super fast delivery! Broke both door locks end of last week and received them today!



by:

My trailer didn't come with one so I was always worried about the side door coming open. Not anymore!! This item is perfect for what I needed, easy install too. A LOT cheaper price then expected! Arrived sooner then was told.

Greg

6/11/2018

Loved your product! Easy to install, great price, and arrived earlier then expected! Piece of mind now going down the road. That side door is NOT coming open! Ill be back!

Greg

5/22/2019

Perfect! No issues....its strong and smooth operation....and PEACE OF MIND my sidedoor will NOT come open driving 65 on the highway.



by:

Received the item very quickly for having chosen the "economy" shipping. Installed on 2015 Haulmark Transport side door for additional security, used in conjunction with a puck lock. Install was easy with the help of the reviews from this site, particularly the one from Michael K. I attached mine in the same manner as Michael, on top of the aluminum trim and butted up against the lip. I believe it would be just as functional and still secure through a vertical post if secured at the edge of the aluminum trim, however there seems to be better door engagement with it on top of the trim. I've attached a close-up of the mounting, as the description in other reviews is lacking in clarity. The door is rather flimsy on the this model of trailer, as I'm sure is the same with most trailers, so some backing will be required inside the door for the mounting hardware to distribute the load. I used a 1/8"x2" strap steel that I found at the local hardware store. Very satisfied with the end result, quality product at a great price.



by:

Works great gives a good positive lock you don’t have to worry about the door opening when the trailer flexes



by:


My shed door didn't close well and
the shed was becoming a haven for wasps. After searching for a door latch that would seal the door I found your website and you had the perfect product for my project.

Your site was easy to navigate and simple to use. I was happy with the email updates on the shipping status and the latch arrived in good time and in good condition.

This might be the first time your trailer parts were used to fix a shed, so I'm including a picture.

All in all, a great experience.



by:

Thank you it is great



by:

It makes a big difference having one of these added to my side trailer door for security. Well built and was easy to install.



by:

Holds door securely shut. I added a custom bracket to stabilize the side of this homemade box, by using the back door as a shear wall. See special bracket just below top hinge, under rod. The right wall cannot vibrate when driving, or be pushed out by contents inside.


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Show More Reviews

See what our Experts say about this Polar Hardware Trailer Door Latch

  • Tips for Installing Trailer Cam Door Style Latch on Trailer With Door that Isn't Flush
    To use a cam door style trailer latch on a trailer door that sticks out 1 inch past surface you'd want to use a spacer behind the latch mechanisms that attach on the door. I'd also go with a setup like the part # PLR258-002-SS which allows you to provide your own bar. You could attach the latch on top of the bar so that you get more offset as well.
    view full answer...
    Image 1 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...
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  • Availability of Trailer Side-Door Bar Lock Assembly Like # 305736 in Lengths Other Than 36-Inches
    The Redline 36-Inch Lock Side-Door Bar Lock Assembly # 305736 that you referenced is one of two sizes offered by Redline. The other size is a 55-inch version that is being added to our website now; that part number will be # 3057-55 and this will be available for order on our site in a day or two. We also offer their Universal Cam-Door Lock for Enclosed Trailers # 383200 that does not include the required 3/4-inch inner diameter pipe. You can use this kit with a pipe length of your choice...
    view full answer...
  • Is Installation Hardware Included with the Polar 305736?
    With the Polar Hardware Side-Door Bar Lock Assembly # 305736 being zinc plated, you will want to go with zinc plated hardware as well. Though this does not include the hardware, we generally recommend using the existing hardware if you are replacing an older assembly. If this is not the case, or if the existing hardware is not in good condition, we recommend using 5/16 carriage bolts, lock nuts, and flat washers. This isn't a size that we carry, but can easily be found at most hardware stores.
    view full answer...
  • Are There Spacers For The Cam-Action Lockable Door Latch # 305736?
    While we do not have any spacers for the Cam-Action Lockable Door Latch # 305736 they can easily be made using steel plate from a local steel supplier or hardware store.
    view full answer...
  • Spray On Rubber Gaskets for Mounting a Cam-Action Lockable Door Latch on a Snowmobile Trailer
    I have a solution for you but we do not sell gaskets specifically for that purpose. Instead, you will want the Loctite RTV 598 High-Performance Silicone Gasket Maker item # LT37467. This will allow you to seal up any holes you have to drill. The Cam-Action Lockable Door Latch w/ 36" Pipe for Enclosed Trailers item # 305736 you were looking at is made of zinc-plated steel that is corrosion resistant. This will work great on your snowmobile trailer.
    view full answer...
  • What Size Pipe is Needed to Complete the Installation of the Door Cam Lock
    You will need 3/4 inch inside diameter pipe to complete the installation of the Universal Cam-Door Lock for Enclosed Trailers, item # 383200. Some welding is required for installation of this kit. We also have the 36 inch Lock Side-Door Bar Lock Assembly, item # 305736, that is ideal for use on trailer side doors that may be smaller than rear doors. This item does not require welding for installation.
    view full answer...
  • Type/Size of Hardware Needed to Install Side Door Bar Lock Assembly #305736
    Although there are no hardware kits available to install the Polar Lock Side-Door Bar Lock Assembly # 305736 we have found that you can use 5/16 inch carriage bolts along with some nuts and washers that are compatible with the bolts. All of which can be acquired at your local hardware store and should be bought with either a galvanized finish or stainless steel.
    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...
  • Availability of Strong Theft-Proof Latch for Recently Vandalized Enclosed Cargo Trailer
    We do offer a replacement door latch, part # 158-101. If you used the Blaylock Door Lock for Enclosed Trailers, part # BLDL-80 in conjunction with the latch, you would certainly provide additional theft deterrence. The lock will not turn away the most determined thief, but will likely make them move on to an easier target. You would need to replace your existing damaged keeper latch with the 158-101. Once installed, the lock would install over the keeper latch and protect it. We unfortunately...
    view full answer...
  • Availability of Cam-Action Door Latch with 55-1/4" Bar For Rear Ramp Door
    I do have an option for you. You'll need the Cam Action # PLR158 which you can use on the rear ramp doors, and this kit doesn't include the pipe so you'll just need to add whichever length (in your case 55-1/4") 3/4" diameter pipe to fine tune the kit to your trailer.
    view full answer...
  • Can 55 Inch Lock Side-Door Bar Lock Assembly be Used on a Right or Left Opening Door
    Yes, you can use the lock side-door bar lock assembly, # 3057-55, on a door hinged on the left or right. Just flip 'er over as needed! This version features a 55 inch long pipe. If you need a shorter version use # 305736 with a 36 inch long pipe.
    view full answer...
  • Can the Lock Side-Door Bar Lock Assembly Be Used On Double Doors
    Yes, the Lock Side-Door Bar Lock Assembly part # 305736 can be used to hold a set of double doors together. That said, you may also want to add some keepers on the top or bottom like part # F719-182Z104 for additional support but that is entirely up to you and how heavy/large the doors are.
    view full answer...
  • Is There a Solid Steel Bar Connection to Cam Holder for 10K Dump Trailer Available?
    It sounds like you are describing the 55" Lock Side-Door Bar Lock Assembly # 3057-55 or the 36" # 305736. These both have the pipe versus the solid steel round bar, so you may want the Economy Side Door Lock - Stainless Steel # PLR3057-SS where you supply the solid round bar to attach to the hardware.
    view full answer...
  • Tack Room Door Lock For A 2016 CM Dakota Horse Trailer
    What type of latch do you have on your tack room door? If it is a cam door style lock like the Lock Side-Door Bar Lock Assembly part # 305736 then you can use something like the Global Link Vise Lock for Cam-Action Door Latch part # 295-000025. If this is not the type of latch you have on your tack room then please send me a photo and I would be happy to let you know if we have any options. I see the hinge in the picture you included. So if it is the hinge you are looking to replace, I...
    view full answer...
    Image 1 for
  • Replacement Latch for Circle J Horse Trailer
    If you want an entire replacement latch assembly you could use the # 305736 you were looking at. I can't quite tell from the picture but it looks like that is the old pipe and what you really need is a handle to attach. The # 158-100 could be welded onto the existing pipe to replace your handle. If you want to replace the hasp as well then you could get the # PLR3057 instead.
    view full answer...
    Image 1 for
  • Parts Needed To Convert Double Door On Enclosed Trailer To Ramp Door
    There are options for you, and it really comes down to how much of the fabrication you are able to do yourself or if you are going to have to have someone do the work for you. The most cost effective way is reinforcing your double door and converting it to a ramp. You will need to change the hinge to one like the 3" Wide Continuous Stainless Steel Hinge # SH300 and then add a new latch like the # 305736 on each side to keep the door closed. You will then need to have a ramp door spring...
    view full answer...
  • Door Lock Assembly Recommendation for use with the Blaylock Lock BLDL-80
    The style of door latch that the BlayLock Door Lock # BLDL-80 is designed to work with is the cam door style of door like the part # 3057-55 which is 55 inches tall or the # 305736 which is 36 inches tall.
    view full answer...
  • Hardware Needed for 36" Lock Side-Door Bar Lock Assembly 305736
    To install the 36" Lock Side-Door Bar Lock Assembly # 305736 you will need 5/16 inch diameter carriage bolts to secure the latch to the trailer with nuts and washers. You can find these carriage bolts at your local hardware store.
    view full answer...
  • How to Install a New Side-Door Bar Lock Assembly # 305736
    Installing the Hinges on your Side-Door Bar Lock Assembly, item # 305736, is pretty much up to you and the construction of your trailer. You will need to purchase appropriate hardware to install the Side-Door Bar Lock that you purchased. It is best if you can find a sound structural support in the trailer framing to bolt the Side-Door Bar Lock to and still allow the bar to make contact with the face of the door. I have posted a photo of the # 305736 Side-Door Bar Lock, installed on another...
    view full answer...
    Image 1 for Image 2 for
  • Can the Length of the Pipe be Adjusted on 55 Inch Lock Side-Door Bar Lock Assembly
    The 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...
  • Replacement Door Handle for a Horse Trailer
    If you need the whole assembly and it is a cam-style door then # 305736 is a good option. I have linked a video for you. We have some other handles depending on what you need. I have included a link to them for you. If you just need the handle that for a cam door then use # 158-100.
    view full answer...
  • What Does the 36
    Yes, the 36" Lock Side-Door Bar Lock Assembly # 305736 comes with everything except mounting hardware that you would need to provide. It comes with pipe, brackets and hasp. Check out the review video I attached to see all of the parts laid out on our demo table.
    view full answer...
  • Is the 36 Inch Lock Side-Door Bar Lock Assembly, # 305736, Adjustable
    The Lock Side-Door Bar Lock Assembly, # 305736, is designed so that when it is installed, it pushes the door tightly closed. The unit is not adjustable. Attempting to bend or heat the components could compromise the structural integrity of the unit.
    view full answer...


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