Hook and Keeper for Enclosed Trailer Door - Zinc Plated

Hook and Keeper for Enclosed Trailer Door - Zinc Plated

Item # 383400

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Enclosed Trailer Parts

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Hook and Keeper for Enclosed Trailer Door - Zinc Plated Hook and Keeper 383400
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Product Images

In Use/Installed

Customer Photos


  • Doors
  • Door Hardware
  • Door Holder
  • Hook and Keeper
  • Polar Hardware
  • 4 Inch Hook
  • Steel
Call 800-298-8924 to order Polar Hardware enclosed trailer parts part number 383400 or order online at etrailer.com. Free expert support on all Polar Hardware products. Guaranteed Lowest Price and Fastest Shipping for Hook and Keeper for Enclosed Trailer Door - Zinc Plated. Enclosed Trailer Parts reviews from real customers.


  • All Info
  • Reviews (258)
  • Q & A (17)
  • Videos (2)
  • Photos
  • Why etrailer?

Polar Hardware Enclosed Trailer Parts - 383400


The hook and keeper is used to hold doors and windows open on your enclosed trailer.

  • One piece is mounted to the side of the trailer, the other is mounted to the door
  • Mounting hole spacing: 2-5/16" (horizontal) x 1" (vertical) - center to center
  • Zinc plated
  • Hook is 4" long


00009 Enclosed Trailer Door Hook and Keeper







Video of Hook and Keeper for Enclosed Trailer Door - Zinc Plated


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




Video Transcript for Redline Enclosed Trailer Door Hook and Keeper Installation

Speaker: Today on our enclosed trailer, were going to be installing the Redline Enclosed Trailer Door Hook and Keeper, part number 383400. Were going to be replacing these old broken hook and keepers here on this trailer. They have the old plastic style and they just dont hold up very well. As you can see here, this ones broken completely on the end, so its not even useable. Now, well first need to remove each side, which are held in by these 4 screws, 4 on this one, as well as 4 over here on this side. Ill go ahead and take the screws out first. Now with our 4 screws removed, we can take the old hook portion off the trailer.Now that we have both of the old pieces removed, well go ahead and wipe off the dirt before we install the new ones.

Heres our new keeper portion of the bracket and heres the new hook portion. Well be attaching the keeper to the rear door and the hook portion will go here on the side of the trailer. Were going to go ahead and reuse the screws that we removed from the old brackets.Well go ahead and put our keeper portion on the rear door, again using the same hardware that we removed. Now that we have all of our hardware tightened down, lets go ahead and show you how the hook and keeper work. Go ahead and push the door all the way open.

Well go ahead and take our hook here. Well lift it up, slide it into the keeper, slides down. Now you can see our door cannot come back closed. You can see here our door is secure in the open position. To undo the keeper, you simply slide upward, let it go back down and now your door is able to be closed.Thatll do it for our installation of the Redline Enclosed Trailer Door Hook and Keeper, part number 383400.

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Customer Reviews

Hook and Keeper for Enclosed Trailer Door - Zinc Plated - 383400

Average Customer Rating:  4.8 out of 5 stars   (258 Customer Reviews)


- 383400
by:

Excellent product. Quick delivery. Outstanding tracking site. I have a V-nose trailer so I had to do a simple modification to the hook in order to mount the latch to the trailer. Rivets were used to secure the hardware to the trailer. Excellent product and service. 37591



- 383400
by:

The initial part I received was broken. I sent an email expressing concern and just received a generic response. It appears that my 1st email went to the wrong address. I received a follow up email and etrailer sent a replacement with no questions asked. I replaced an existing door keeper and this one matched the holes perfectly. I don't know if it is alignment or the angle of the door but sometimes the hook does not want to drop right into the keeper. The part works and I did get great support from etrailer once I got to the right person. 205718



- 383400
by:

Holds door open during loading. Just what I wanted. Extra bonus, the moving part of the latch is spring loaded wo it stays flat when not in use and it does not rattle, or get in the way. 212628



- 383400
by:

Not really pleased with the finish. Spots on the product leads me to believe early stages of rust may be setting in. Would have preferred it to have been stainless. I would've gladly paid more for stainless. 162430



- 383400
by:

Great product and great service. 655810



- 383400
by:

Parts worked like a charm. As always, good reliable products are sold by this business! 650738



- 383400
by:

Great product. Great company...used it to hold outswinging shed door to 2x2 post..works great !!! 650033



- 383400
by:

Good and sturdy as I was hoping it would be. I painted it white to match siding on trailer where I installed it to make it more appealing. It replaced a plastic OEM type that cracked too easily. Yep it did what I wanted it to do. 649538



- 383400
by:

Great product and great service. 649509



- 383400
by:

Perfect match 637226



- 383400
by:

Great Quality!!! Fast Shipping!!!!! 636688



- 383400
by:

etrailer is one of my favorite companies to deal with. The shipment is always fast and the price is right. Best of all, extensive knowledge base available online makes it very easy to find the right part and the instructions how to install it. This purchase is just another example who etrailer is a great company. 636531



- 383400
by:

This worked out perfectly. Strong and robust. It fits really tight that it takes a little muscle, but all in all, it holds against the wind. 635605



- 383400
by:

Products came fast and were just as des cribed! 633574



- 383400
by:

Good retainer for door. 629016



- 383400
by:

Received parts for my enclosed trailer today. Very prompt. Well packaged. Thanks 609376



- 383400
by:

Yep I got it all good thank you!! 608644



- 383400
by:

Good product 606699



- 383400
by:

It was exactly the part I needed for my trailer. I didn’t need to drill new holes It fit perfectly. It was delivered in a timely fashion. Thanks etrailer. You are my go to every time. 594572



- 383400
by:

It does the job exactly as expected and does not break like the plastic stuff. 586101



- 383400
by:

I was tired of having to use my spare tire, or something else, to keep my trailer door from closing on me when loading or unloading. This will take care of that problem for me. Quality seems to be good and installation was a breeze. 585179



- 383400
by:

Very Good 581944



- 383400
by:

Very sturdy, easy to install. Perfect upgrade. Was able to pick up all the items I needed at etrailer.com. Quick and simple! 576146



- 383400
by:

Received product earlier than expected. Haven’t put latch on trailer yet but it is made of very good quality and I know will be an asset to my enclosed trailer. Will order from this company again! 574234



- 383400
by:

Great product. Perfect fit. Better than orig. 574069



- 383400
by:

Excellent service and rapid delivery. Product as described. 568849



- 383400
by:

Exactly what I needed! Excellent servic e! 567040



- 383400
by:

Three were great and one was very weak. 560781



- 383400
by:

perfect fit 559651



- 383400
by:

Perfect fit replacing my original hook on my horse trailer! 558810



- 383400
by:

Excellent quality and price. Timely del ivery. 556141



- 383400
by:

Had to convert back of trail from ramp to barn door style these guys had everything I needed and great service 554075



- 383400
by:

Fast service and good product 550492



- 383400
by:

These latches are better than expected for quality and size. 541103



- 383400
by:

Happy with product 526817



- 383400
by:

This hook and keeper will replace the chain on the top of the access door on our car hauler. This is one of the little things that makes life easier. 523000



- 383400
by:

Great product 518037



- 383400
by:

Works as advertised 514132



- 383400
by:

I had tried a nylon hook but it couldn't stand up to the wind. This galvanized steel hook and keeper will hold the door on the horse trailer so no more spooked horses. It's exactly what I needed. Easy to find at etrailer! 513515



- 383400
by:

Exactly what I was looking for and worked out great. 504904



- 383400
by:

Exactly what I ordered 500194



- 383400
by:

Transaction made easy! Googled the part your company popped up with the item right on the page, purchased it and had it in two days thank you. 498902



- 383400
by:

Good fit 496298



- 383400
by:

works great 485864



- 383400
by:

Product is doing its job like it's been there for years 485734


Comments

Everything is working great. Thanks

Tom - 03/18/2019

50682

- 383400
by:

Product was exactly what I wanted and the service was fast. I was replacing a similar item that had been ripped off the door. The new install worked perfect. 479738



- 383400
by:

good 477155



- 383400
by:

Let me get that door for you ma'am 471204


Comments

Holds door like it should

Moe - 01/29/2019

49023

- 383400
by:

Ordered 2 replacement ramp door latches and side door retainer bracket, very pleased in the packing and promptness of delivery. Installed the latches today fit perfectly. Thanks guys will definitely use your products again. 463810



- 383400
by:

Worked well and good price 461881


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Show More Reviews

Ask the Experts about this Polar Hardware Enclosed Trailer Parts
Do you have a question about this Enclosed Trailer Part?


  • Solution to Hold Swinging Trailer Doors Open
  • What we have is a Hook and Keepr # PLR9-SS in stainless steel, # PLR9-A in aluminum, and # 383400 zinc plated. These are used to hold trailer doors open similarly to how you are using a hook and chain. One piece is conneted to the side of the trailer and the other is connected to the door. The hook slides inside of the keeper when open to hold the door in place.
    view full answer...

  • Door Keepers for Enclosed Trailer Doors
  • We only have the door keepers available in 4 inch. We have the stainless steel # PLR9-SS, Aluminum # PLR9-A, and Zinc # 383400. We also have some plunger and socket and stem and socket options, but these have less space. I've linked the page to further assist.
    view full answer...

  • Installing Trailer Door Hook and Keeper # 383400
  • You will usually see the hook portion mounted on the trailer door, with the keeper connected to the side of the trailer, but there is no reason why you could not install it the other way, if you wish. Just to be certain, I checked with the manufacturer who told me the same thing.
    view full answer...

  • Why Doesn't Enclosed Trailer Door Hook and Keeper # 383400 Come with Install Screws
  • The Enclosed Trailer Door Hook and Keeper # 383400 does not come with new screws because different applications will require different fastener styles and lengths. So instead of giving screws that would end up getting misused in some applications they let the customer decide what would be the correct install hardware to use. I attached an install video for you to check out as well.
    view full answer...

  • Hook and Keeper on Side Door of Haulmark Trailer
  • The Zinc Plated Hook and Keeper # 383400 is a universal fit so it will likely work on your Haulmark trailer. It's a 4 inch hook with mounting holes that are spaced 2-5/16 inches horizontally and 1 inch vertically.
    view full answer...

  • Availability of Brackets that Hold Trailer Doors Open
  • We have brackets that hold trailer doors open like what you mentioned. We have the part # 383400 for a metal bracket style. Or if you wanted a plunger style that would just require you to push the door in place you would want the part # DH39R.
    view full answer...

  • Replacement Latch Part for 1994 Fleetwood Bounder Motorhome
  • RV makers do not maintain any specs on smaller items like door hardware they install on their motorhomes so we have no way to look that up for you. Since I don't know which particular type of latch you need to find a replacement part you can use the linked pages that display the various door parts we offer, such as Hook and Keeper # 383400. If you like you can email me your photos of the door/compartment for which you need the latch part and I will be glad to help you find the right item.
    view full answer...

  • Holding Trailer Doors Open Using Plungers or Hook and Keeper Holders
  • Regarding the man door and the awning, is there any way that you can attach the plunger style holder, # DH605, to the support are for the awning that is causing the interference? Otherwise, you could use something like the hook and keeper, # 383400. If they were placed near the door hinges you could probably configure it to hold the door open where it will not interfere or shut. The same thing for the rear barn doors. The stress on the door keepers would be greater the closer they are...
    view full answer...

  • What are the Dimensions of the Enclosed Trailer Door Hook and Keeper # 383400
  • I went out to the warehouse and pulled Enclosed Trailer Door Hook and Keeper # 383400 to measure it. First, the mounting holes are 2-5/16 inches across on center and 1 inch top to bottom on center. The mounting plates for both pieces are 3 inches by 1-3/4 inches. From the center of the hook piece to the end of the hook is 4 inches. The hook piece sticks up 1/2 inch from the mounting surface. The keeper piece sticks up 3/4 inches from the mounting surface. I have also included...
    view full answer...

  • Recommended Door Holder for Fender Mounting
  • The Plastic Stem and Rubber Socket Door Holder - 2" Long Stem # DH39R can be installed onto your fender if desired to allow your door to be secured open. You can alternatively use a Hook and Keeper for Enclosed Trailer Door # 383400 in another location like mounted to the fender to give you a similar option. There is not an option we carry that is long enough to allow connection to the main trailer wall when the fender is making contact with the door.
    view full answer...

  • Trailer Door Holder that Won't Accidently Release the Door
  • I do not have a way to test how much force it takes to pull the rubber stem from the socket # DH39R (no force gauge available) but having used this type of door keep before I can tell you that it usually takes a good jerk to free it up. When you want to be positive that the door is going to stay open I recommend using a hook and keeper such as # 383400. I have linked a video review for you.
    view full answer...

  • Bolt Hole Dimensions for the Enclosed Trailer Door Hook and Keeper # 383400
  • I attached a picture that has all of the mounting hole dimensions for the Enclosed Trailer Door Hook and Keeper # 383400 that you referenced. You would need to compare them to what your trailer has to see if it would bolt right up.
    view full answer...

  • Trailer Door Hook and Keeper are Not Lined Up Properly on a Outback Enclosed Trailer
  • So when you open the door and swing the hook part out to meet the keeper the door hits the fender before the 2 can reach each other? If that is the case then I would agree that somewhere along the line a mistake was made. The only hook and keeper we have is # 383400 and the hook is just 4 inches long. The best solution is to move the hook and/or keeper. It sounds like the screws used are Torx style or something similar. A hardware store should have the appropriate tool to remove and...
    view full answer...

  • Latches for Securing Ramp on Open Landscaping Trailer
  • Without knowing the dimensions and weight of your ramp it is hard to make a specific product recommendation but we do offer all sorts of trailer hardware. You might do well with an inexpensive hook and keeper like # 383400 or # PLR9-SS, or a spring latch like # SL716. I recommend using one latch on each side of the ramp.
    view full answer...

  • Recommended Strap Hinges For 4 x 8 Foot Doors for Enclosed Trailer
  • What you're planning sounds like it would work, but you'll need to be sure you have some cross members in the door where each hinge mounts. Since the doors are large and are likely pretty heavy, I'd use the biggest hinges you can. If you were wanting the hinge to swing all the way up against the side of the trailer, I'd recommend using # 2212. A hook and keeper, part # 383400 would hold the door open for you as you load/unload. If you only need the door to swing 180 degrees, use #...
    view full answer...

  • Will Enclosed Trailer Door Hook and Keeper 383400 Work on a Heavy Horse Trailer Door
  • Even though the door on your horse trailer is heavy the door keeper # 383400 will still hold it open. Nearly all of the door's weight will be on the hinges and the keeper is just preventing it from closing. The keeper is not really supporting any weight so it will work well for you. I have linked a video showing an example installation.
    view full answer...

  • Can a Horse Trailer Back Door be Left Open or Will it Damage the Hinges
  • It really depends on how heavy the door is, how far it sticks out from the hinges, and how big the hinges are. You could technically say the same thing about any door that mounts on hinges. So the doors in your house you would not necessarily be closed all the time. But at the same time the distance between the ground and the bottom of the trailer door is greater than that on a door in your house. In other words, a sagging door in a house would only go so far before being held up by...
    view full answer...


Do you have a question about this Enclosed Trailer Part?




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Info for this part was:

Expert Research:
Michael L
Expert Research:
Michael H
Installed by:
Jeff D
Expert Research:
Jameson C
Expert Research:
Adam R
Photos by:
Amber A
Video Edited:
Chris R
Photos by:
Zach O
Updated by:
Sarah W
Updated by:
Amanda M

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