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  1. Trailer Door Holders
  2. Polar Hardware
  3. Plunger and Socket
  4. 2-1/4 Inch Plunger
  5. Rubber
  6. 2 Inch Hole Spacing
Plunger and Socket Trailer Door Holder - 2-1/4" Plunger - Zinc Plated Steel

Plunger and Socket Trailer Door Holder - 2-1/4" Plunger - Zinc Plated Steel

Item # PLR64-66
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Our Price: $16.16
Trailer Door Holders
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Shipping Weight: 0.5 lbs
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No need to manually latch and unlatch your trailer door with this plunger-and-socket holder. When you're ready to load or unload, just pop the plunger into the rubber socket to hold door in place. Zinc-plated steel construction resists corrosion. Lowest Prices for the best trailer door holders from Polar Hardware. Plunger and Socket Trailer Door Holder - 2-1/4" Plunger - Zinc Plated Steel part number PLR64-66 can be ordered online at or call 1-636-306-4830 for expert service.
  • All Info
  • Reviews (102)
  • Q & A (0)
  • Photos
  • Why etrailer?

Polar Hardware Trailer Door Holders - PLR64-66

  • Plunger and Socket
  • 2-1/4 Inch Plunger
  • Rubber
  • 2 Inch Hole Spacing
  • Polar Hardware

No need to manually latch and unlatch your trailer door with this plunger-and-socket holder. When you're ready to load or unload, just pop the plunger into the rubber socket to hold door in place. Zinc-plated steel construction resists corrosion.


  • Plunger-and-socket door holder keeps your trailer door open while you're loading and unloading
    • No need to get a friend to hold the door or find something to prop the door open
  • Plunger pops into rubber socket to hold door in place
    • No need to manually latch and unlatch like with other holders
  • Rubber socket makes for quiet operation
  • Zinc-plated steel plunger is corrosion resistant
  • Plunger mounts to the door; socket mounts to the side of your trailer
    • Mounting hardware not included


  • Plunger length: 2-1/4"
    • Overall length (including bracket): 2-5/8"
  • Plunger mounting bracket dimensions: 3" tall x 1-3/8" wide
    • Distance between mounting holes (center to center): 2"
  • Socket mounting bracket dimensions: 3-3/8" tall x 1-15/16" wide x 1" thick
    • Distance between mounting holes (center to center): 2-1/2"

R64 Polar Hardware Plunger - 2-1/4" Long

R66 Polar Hardware Socket with Rubber Insert for Silent Door Holder

Replaces DH100

Customer Reviews

Plunger and Socket Trailer Door Holder - 2-1/4" Plunger - Zinc Plated Steel - PLR64-66

Average Customer Rating:  4.7 out of 5 stars   (102 Customer Reviews)

No need to manually latch and unlatch your trailer door with this plunger-and-socket holder. When you're ready to load or unload, just pop the plunger into the rubber socket to hold door in place. Zinc-plated steel construction resists corrosion.


Quality is great, install was easy. I do wish etrailer sold the rivets needed to attach this product.

These can be installed with a quarter inch self tapping screws.
-- Etrailer Expert Sierra K - 12/22/2021


I bought these to replace one on my horse trailer that had lost a screw and fallen off and I’m so disappointed. They work perfectly fine as long as you aren’t moving. Once you start driving and hit a bump the plunger pops out and either the door swings closed or starts flapping around in the wind and you have to pull over to fix it. I had to haul my horse 2.5 hours in the heat last weekend and had to stop at least 5 times to open the doors back up because they kept coming undone. Really wish I’d bought something else instead.

Thank you for your review. This door holder is meant to hold trailer doors open during loading and unloading. This is not supposed to be used to hold doors open on the highway. You can watch our video about the product here:
-- Etrailer Expert Sierra K - 06/17/2021


Worked great for my horse barn


Exactly what I needed and quickly recei ved


Very good follow up and updates on my order. Product is exactly what I expected and good heavy duty piece.


I remember seeing this on an old 60's trailer that I camped in as a kid. I currently have a 1990 layton skyline. My door was missing a door holder so I purchased this one. The door I have is very flimsy so this wasn't a very good fit for my door(this door holder requires you to push fairly hard to get the knob in the grommet). I ended up reinforcing my door with some plywood on the inside and bolting this door holder in place through the plywood. The door is still a bit flimsy but this will do the trick.


This is a very well made heavy duty product. However, I installed it on a 46 degree day (which is to be expected on many a camping trip) and the rubber grommet in the female piece is so stiff that I was afraid of actually breaking the door in trying to get it to engage! I am hoping that it will soften up in warmer climes- if not I will ream it out a bit with a drill bit.


I have a 1995 Northstar popup camper and this door holder nicely replaced the old broken plastic one. The mounting hole locations were slightly different but I'll fill the unused holes. Thanks etrailer.


Purchased this item a year ago now on my camper to prop the door open. Worked great for about 3 months then the rubber insert seemed to work itself loose every time I un-propped the door the rubber would come with it..I don't no if it was just a malfunction with the single part I ordered or every part but I threw some industrial adhesive I got from work in there and took care of the problem..but, all and all works great for my use


In all my years of working with trailers, these are the absolute best Socket Door Holders I have found! No matter how hard the wind blows, my doors stay open! With this modification I can work from any busy street and not worry about my trailer doors blowing open and hitting a passing car!


Works great. Had a cheap plastic one that broke in a year, this thing will last longer than the rest of the trailer. Just make sure that you mount it with good hardware and into a stud or frame.


Exactly what I needed. Will order from e trailer again !


Product worked quickly, easy to install and good prices.

Its been a year and it still works fine. Its terrible when you have to load and unload and the door wont stay open. And it wasnt expensive.
Kay M - 06/02/2020


The rubber socket is VERY tight and reuires effort to attach and detach the plunger. It may improve with time.


I can only give 4 stars because I was sorely disappointed to find that there were no bolts or installayion hardware that came with this item. I mean c'mon, bolts cost pennies. Charge an extra dollar if you have to but include the bolts to install. Show that you care about the customer. Now I have to go out of my way to get bolts from hardware store. The manufacturer should should a little more care for the end user and include mounting hardware.


Not installed as yet, but looks very sturdy and exactly what we expected. Service from etrailer has been great and tracking follow up was very punctual. Also loved installation video... very helpful. Thank you. Ed


quick shipping. arrived as advertised.


Keeps the trailer doors in place during those windy days. No more getting hit by a swinging door. Boy that hurts!


Shipping was great. The product is right on time. I go in and out of my trailer a lot and this will keep me from having to bend down to hook the door latch.


Excellent product, I ordered wrong and they fixed it. I gave ALL my buddies etrailer info so they can order from you, TOO.


Fits perfectly and is just exactly what I ordered. I've used etrailer only twice and will most definitely buy from them again. Everything I've needed so far has been in stock and have been very happy to deal with these folks.


Great products at a great price. Excellent customer service. I will definitely continue to order from etrailer.


Thank you for your business. It was not the right length so I returned them. I will think of e-trailers the next time I need something. Thanks Kris.


Ordering was easy, price was very good and we received the item in just a few days. It is exactly what we needed to secure our trailer door and release it without having to exit the trailer. .


Great product heavy duty. Much better than the one that was on the trailer to start with. So glad I bought 2 going to replace the other one. 5 star for sure thank you will search your site for future items as well very fast to ship and great prices

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Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jacob H
Installed by:
Jacob H
Employee Jameson C
Expert Research:
Jameson C
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Updated by:
Mike S
Employee Amanda M
Written by:
Amanda M

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