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Full Size Locking Steel Flush Door Latch

Full Size Locking Steel Flush Door Latch

Item # L3980
Our Price: $38.94
Trailer Door Latch
Shipping Weight: 1.22 lbs
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Flush mounted latch with stainless steel spring, rustproof finish and locking cylinder. Mounts in 3-3/8" x 4-5/8" hole. Great Prices for the best trailer door latch from Redline. Full Size Locking Steel Flush Door Latch part number L3980 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (58)
  • Q & A (0)
  • Videos (1)
  • Photos

Redline Trailer Door Latch - L3980

  • Flush Latch
  • Latches
  • Steel
  • Built In Lock
  • 3-3/8 x 4-5/8 Inch Cutout
  • Redline

Flush mounted latch with stainless steel spring, rustproof finish and locking cylinder. Mounts in 3-3/8" x 4-5/8" hole.


  • Plain, rustproof finish


  • Mounts in 3-3/8" x 4-5/8" hole
  • Mounts with one way screws or pop rivets (not included)
  • This handle will work on doors up to 1-1/16 inches thick

L3980, Door Latch, Paddle "STD" Locking, Plain Steel

Video of Full Size Locking Steel Flush Door Latch

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

Video Transcript for Redline Enclosed Trailer Parts - Doors - L3980 Review

Customer Satisfaction Score:

Customer Reviews

Full Size Locking Steel Flush Door Latch - L3980

Average Customer Rating:  4.7 out of 5 stars   (58 Customer Reviews)

Flush mounted latch with stainless steel spring, rustproof finish and locking cylinder. Mounts in 3-3/8" x 4-5/8" hole.


good quality latch looks like it will hold up to years of use, works good and looks good , and installed pretty easy. I installed it on my car trailer service door and it fits real nice. I would of rated it 5 star but the back side of the latch on the inside of door does not have a trim ring it would improve the appearance of the installation. I will fabricate my own to cover the ruff edge of the opening.

Randy J.


Works perfect no complaints


I'm very satisfied with my purchase,
i installed the new
lock handle in place of the side door '"swing lock handle"
i'm using the trailer as a camper and by doing this it
makes the door more usable and i can enter the trailer
more easly with this handle, i took pictures as i installed
the new lock handle.
Thanks Larry


The latch worked great! We installed it a year ago and it's still working great!


Here are some pictures from the horse trailer upgrade. Picture A is the old handle and removal. Picture B is test fitting, installation. I had to remove a little material on the top and some on the end. To transfer the existing hole locations I just drew lines to find the center of each hole with a pencil. Installed the new handle and transferred the lines. Painted the handle silver before installation. Picture C, before and after. Time for install abuot 1.5 hour including paint. Thank you


Great latch with a durable finish. The thicker door allowance on the latch worked perfectly for my application.


Does not have the supports for screws to sit in. In other words the solution we were told is to drill holes all the way through which takes away the safety feature. If you buy this it is not the same size bolt as well. Much shorter. In general not a match as advertisied.

Etrailer Expert

Jenny N.


This latch is meant to be installed with pop rivets and or screws that would be drilled into the four corners,


We have a 1967 Ford American LaFrance Firetruck with 7 cargo bins and no latches that lock. Makes it pretty useless for storage space. The locks are a perfect match to the old hardware we took off. The first one installed in less than 5 minutes.

The team at etrailer kept us up to date on the order, shipment, delivery, etc., it was a great experience.


Unfortunately, and I am very sad to say, the lock I ordered from you did not fit my Wells Cargo trailer *:( sad. Online, it looked like a perfect fit, but unfortunately in real life there were several things about the new lock I ordered that did not match up to my old one. My old lock is still usable, so I guess I'll have to keep using it.

I hate to return things I order, but in this case it is useless to me. I would like to return it in it's original, perfect condition for a refund, but want to make sure I send it appropriately. Will you give me the instructions I need?

Again, I am sorry it didn't work out as I had hoped, and I appreciated your kind letter. I would still like to give a good review for you, even though the product didn't work for me.

Thank you for trying...
Wayne *:( sad


Good latch. Seems to look and work well enough. Unfortunately I was never able to really use it because the bar on the back wasn't long enough to reach the door frame from the latch pocket where the previous latch was installed in my trailer door. But that's my fault, I should have done a little more measuring before buying.


Great part, just I ordered the wrong on e...


Replacing old Wells Cargo door latch, local trailer supply houses couldn't match,
this product is correct size and with a few modifications will have door working properly in no time.


I bought this lock to replace the original on my Trillium 1300 fiberglass trailer. Although not the exact size as the original I was able to adapt it by use of metal plates. The new latch is simpler and much more robust than the original. A liberal coating of grease on the moving parts makes for a smooth operation.


Product itself was not bad. Just had to do some minor modifications to make them work on a 1980 trailer. The latch handle pin is a touch long, so make sure you have proper clearance.


The new door latch was a bit bigger than the old one. I measured it before I ordered and thought it was the same size. I just made the hole bigger and everything worked great. Better bigger than too small. Looks great.


The product was as described and arrived very quickly. The quality is good and worked as intended. Should have loojed a little closer, this model does not have mounting screw posts. My mistake, there is one with mounting posts. I was able to make it work.


good product but the paddle is too short, won't work on my wells cargo trailer


Great product at a great price! Very sturdy and well made! After a year of major use traveling all over the state to different rodeos and shows the lock has taken no wear and no failure. Will continue to use this company and their products!


wrong part I thought I order a front door latch instead I got a cargo latch not to happy I wanted a latch for the front door on a boundry 1986 motorhome


would be nice if lip was wider and had pre-drilled holes for mounting....other than that, it works OK


Latch was just what I was looking for. Went o 2 different supply houses, they had no idea where I could find one. Thank you for your service, it is nothing short of fantastic! It was here Monday in the mail, and I believe I ordered on Friday noon. I will be back. Thank you very much. Bob's Ice Fishing.


Quality isn't as good as I was hopping for, But for the price I got much better parts than I expected. I am very happy with my purchase, and will be doing a lot more shopping with Etrailer!


Still works love it on my trailer


Everything through the ordering process was as it should be. Parts arrived, exactly what I ordered. Will continue to use etrailer


Fix and works great shipping was fast also thanks



Worked out great


Easy and quick! Fast shipping

Show More Reviews

See what our Experts say about this Redline Trailer Door Latch

  • How Thick of a Door will the Redline Door Latch L3980 Fit
    You are going to have to measure the thickness of your door. I wish there was a way to determine the thickness of a trailer door by looking at the VIN or elsewhere, but that info isn't something a trailer manufacturer would list somewhere since it's not super relevant for most people. The part # L3980 will fit your door as long as it's up to 1-1/16 inches thick.
    view full answer...
  • 1994 Four Star Horse Trailer Replacement Locking Latch
    You can definitely try the Full Size Locking Steel Flush Door Latch Item # L3980 but the opening for the original lock may have to modified to accommodate the new latch. We do not offer that type of locking door latch or a latch that size that could replace it. I recommend contacting the manufacturer of the actual door latch to see if there may be a direct replacement.
    view full answer...
    Image 1 for
  • Recommended Flush Door Latch for Wells Cargo Trailer
    I might have an option for you but we don't offer any flush door latches with an extended striker. However, the Full Size Locking Steel Flush Door Latch part # L3980 matches your door cutout at 4-5/8" long x 3-3/8" so this is our best option. If the striker does not reach the catch plate, I recommend moving the latch closer to the end of the door. I have attached our full list of door latch options for you.
    view full answer...
    Image 1 for
  • Replacement Tack Room Door Latch for Horse Trailer that Measures Near 3-3/4 X 4-3/4
    For the size you listed it sounds like you need a full-sized door latch like the part # L3980 that mounts in door openings that are 3-3/8" x 4-5/8" hole. This is a very common door latch seen on horse trailer as well.
    view full answer...
  • Could Full Size Locking Steel Flush Door Latch Fit 1971 Airstream Overlander
    If the cut out on the door of your 1971 Airstream Overlander is 3-3/8" x 4-5/8" and the thickness of the door is less than 1-1/16 inches then yes the Full Size Locking Flush Door Latch part # L3980 would fit and work great. We don't have a way to look up what your door size is currently. We also don't have any smart locks in your size either.
    view full answer...
  • How to install Full Size Locking Steel Flush Door Latch on a Trailer
    The Full Size Locking Steel Flush Door Latch # L3980 is designed to fit 1-1/16 inch thick doors and mounts in a hole that is 4-5/8 X 3-3/8 inches. If there are no screws visible, then your existing latch is likely welded on, and you will probably have to cut off it off to get started. Be sure to be cautious when removing your old latch, so you don't damage your trailer door in the process. If you're able to send some photos, I can give you a better idea about how to start removing the...
    view full answer...
  • Trailer Handle Recommendation for a Door that is 1 inch Thick
    The Full Size Locking Steel Flush Door Latch # L3980 that you referenced can fit doors that are up to 1-1/6 inches thick. It would have no problem fitting yours that is 1 inch thick. This latch requires a hole size that is 3-3/8 inch by 4-5/8 inches.
    view full answer...
  • Available Replacement Door Latch to Fit an Wells Cargo Trailer
    The Redline Flush Mounted Door Latch, # L3980, will mount in a door that has a 3-3/8 x 4-5/8 inch mounting hole. This latch is rust proof and will attach to the door using screws instead of pop rivets. If this latch cannot fit into your door's mounting hole area, then please take a few measurements of this hole. Find the length, width of the mounting hole and the thickness of the door. Once you have found these measurements contact us and we will be happy to try to find a latch that will...
    view full answer...
  • What is the Measurement Between the Door Latch Housing Edge to the Sliding Latch
    On the full Size Locking Steel Flush Door Latch, # L3980, the measurement between the housing edge and the edge of the sliding latch is 1 inch. This is measured inside on the housing edge and inside edge of the sliding latch. The outside to outside measurement between the housing and he sliding latch is 1-3/4 inches.
    view full answer...
  • Will Full Size Locking Steel Flush Door Latch L3980 Fit in Door Hole Opening 4-3/8 wide 3-3/8 long
    Yes, your door dimensions will work perfectly with the Full Size Locking Steel Flush Door Latch # L3980 that you referenced! You must have had a very similar latch to this installed in there previously.
    view full answer...
  • Replacement Bargman L-300 Locking Latch
    I did some research on the Bargman L-300 lock that you mentioned in your question, and it appears that these have not been made in a long time. Specific replacement parts for this particular line are no longer produced. If you are needing to replace the lock, I recommend looking at a similar design handle lock like the Redline Full Size Locking Steel Flush Door Latch # L3980. This will mount in a 3-3/8 inch x 4-5/8 inch hole and will work on doors up to 1-1/16 inches thick. I have attached...
    view full answer...
  • How Thick Can a Trailer Door Be to Use Full Size Locking Steel Flush Door Latch, # L3980
    Provided that the doors on your trailer can accept the required 3-3/8 inch x 4-5/8 inch hole needed to mount the Full Size Locking Steel Flush Door Latch, # L3980, and that the door are less than 1-1/16 inches thick, you will be able to use this locking door latch.
    view full answer...
  • How To Choose Correct Size Flush Latch for Horse Trailer
    In order to find the correct flush latch you'll need to know the cutout size. I have attached for you below a list of flush latches with the required size cutout listed. If none match what you have you can always modify the cutout as needed. The Full Size Locking Steel Flush Door Latch part # L3980 for example fits a 3-3/8" x 4-5/8" cutout. We cannot look up specific parts like a latch for anyone particular trailer unfortunately.
    view full answer...
  • Recommendation for Replacing Bargman L-300 Locking Latch
    The Bargman L-300 lock is no longer manufactured so a direct replacement lock is not available. The Redline Full Size Locking Steel Flush Door Latch # L3980 that you referenced has a similar handle lock design and should work nicely as a replacement. It will mount in a 3-3/8 inch x 4-5/8 inch hole with one way screws or pop rivets. I recommend taking a quick measurement on your existing mounting hole to see if this will fit right in. Also keep in mind that the handle will work on doors...
    view full answer...
  • Locking Door Latch for Concession Trailer Awning Door
    While we don't have any specific parts for an awning latch that locks, the Redline Full Size Locking Steel Flush Door Latch # L3980 should do a good job for your application. I'm not exactly sure what design you are looking for so if you have a different latch style that you are trying to replace please let me know and I can see if we have something different for your concession trailer awning door.
    view full answer...
  • Depth of Full Size Locking Steel Flush Door Latch L3980
    I spoke with the manufacturer and they told me the depth of this door latch, product # L3980, from the recessed area to the housing area is 1 inch. The depth from top of the latch to the bottom is 1-3/4 inches. This door latch mounts in 3-3/8 inch x 4-5/8 inch hole. I am sorry, we do not have a diagram of the measurements.
    view full answer...
  • Keyed Alike Flush Mount Locking Door Latches
    I called my contact at Redline, and they told me that they use the same lock and key for their flush mount door latches. So you could order 4 of part # L1883 and they would all be keyed alike. If you need a larger latch, 4 of part # L3980 would also be keyed alike. Both of these flush mount locking door latches use the same key number.
    view full answer...
  • Can a Looking Door Handle be Added to a TNT Cargo Trailer
    Adding a locking door handle such as # L1883 is not all that difficult at all. You just need to cut the proper size hole in the right place, attach the handle, and make it look all nice and neat. Locking door handle # L1883 requires a 2-5/8 inch by 3-3/4 inch hole. The door thickness can be no greater than 7/8 of an inch thick to use this handle. The full size version, # L3980, requires a 3-3/8 inch by 4-5/8 inch hole and fits doors up to 1-1/16 inches thick. I have linked a couple of...
    view full answer...
  • Door Latch Recommendation for Small Cargo Trailer
    As long as the doors are less than 1-1/16 inch thick the Latch part # L3980 would be exactly what you would want. These are a smaller latch that have locks built into them that are very reliable. For for a smaller setup we have the Junior Latch part # L1833. This is right at an inch smaller in width and length.
    view full answer...
  • Replacement T-Handle Locking Door Latch for 2011 Wells Cargo MPT 461 Utility Trailer
    Sounds like you are looking for the T-Handle Locking Stainless Steel Flush Door Latch part # L4080. This mounts in a 2-3/4" x 3-3/4" hole.
    view full answer...
  • Trailer Door Latch Recommendation for a Trailer Door that is 1-1/2 Inches Thick
    You would want to use a Full Size Locking Steel Flush Door Latch # L3980 on your door that is 1-1/2 inches thick. This latch can work on doors that are up to 1-1/16 inches thick and should work well for you. The Locking Stainless Steel Flush Door Latch # L1833 that you referenced can only work on doors that are up to 7/8 of an inch thick and would not work for you.
    view full answer...
  • Replacement Locking Door Latch for Tack Room Door on 1997 Circle J Horse Trailer
    I was able to find photos of many styles of older Circle J horse trailers and most do seem to use a flush door lock like # L1833 which fits into a 2-3/4 x 3-3/4-inch hole in a door up to 7/8-inches thick. The lock you referenced, part # L3980, fits a larger 3-3/8 x 4-5/8-inch opening in a door up to 1-1/16-inches thick. All such locks we offer are shown on the linked page. Just measure your door thickness and the dimensions of the lock opening to find the best replacement.
    view full answer...
  • Locking Flush Trailer Door Lock Recommendation for a 1 inch Thick Door on a Cargo Trailer
    I have a solution for you, but the "Junior" Locking Stainless Steel Flush Door Latch with Inside Release # L1833 that you referenced can only fit doors up to 7/8 of an inch in thickness. For your 1 inch thick door you would want the Full Size Locking Steel Flush Door Latch # L3980 instead as this handle works on doors up to 1-1/6 inches thick. I attached a review video for this product for you to check out also.
    view full answer...
  • Replacement Locking Flush Door Latch with Inside Release
    All the flush mounted latches we offer are pretty similar, with the differences being size of the hole they install in, the way the metal of the latch is finished, and whether they lock or not. To determine which latch you need, the best place to start would be to remove the latch and measure the hole it's mounted in. The 'Junior' latches mount in a 2-3/4 x 3-3/4 inch hole. The full sized latch uses a hole 3-3/8 x 4-5/8. I'm not entirely sure what the 'inside mounting' dimensions you...
    view full answer...

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