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  1. Trailer Tongue Lock
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etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome
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etrailer

etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome

Part Number: e98888
544 Reviews | 148 Questions
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$32.67
 Trailer Tongue Lock
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etrailer trailer tongue lock latch universal application surge brake coupler - 3-3/8 inch span 1/4 diameter chrome
etrailer trailer tongue lock latch surge brake coupler - 3-3/8 inch span 1/4 diameter chrome
etrailer trailer tongue lock e98888
etrailer trailer tongue lock latch surge brake coupler - 3-3/8 inch span 1/4 diameter chrome
etrailer trailer tongue lock latch universal application
etrailer trailer tongue lock e98888
etrailer trailer tongue lock latch surge brake coupler - 3-3/8 inch span 1/4 diameter chrome
etrailer trailer tongue lock e98888
etrailer trailer tongue lock latch
etrailer trailer tongue lock universal application e98888
etrailer trailer tongue lock latch universal application surge brake coupler - 3-3/8 inch span 1/4 diameter chrome
etrailer trailer tongue lock universal application e98888
etrailer trailer tongue lock latch universal application

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In Use/Installed

0 trailer tongue lock etrailer latch surge brake coupler - 3-3/8 inch span 1/4 diameter chrome
0 trailer tongue lock etrailer universal application e98888
0 trailer tongue lock etrailer universal application e98888
0 trailer tongue lock etrailer latch universal application surge brake coupler - 3-3/8 inch span 1/4 diameter chrome
0 trailer tongue lock etrailer latch e98888
0 trailer tongue lock etrailer universal application in use
0 trailer tongue lock etrailer universal application in use
0 trailer tongue lock etrailer latch surge brake coupler - 3-3/8 inch span 1/4 diameter chrome

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Customer Photos

etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome customer photo
etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome customer photo
etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome customer photo
etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome customer photo
etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome customer photo

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Designed primarily for brake actuators that lock through the body, this lock has a covered keyhole and chrome plating to help prevent corrosion. Steel construction ensures long-lasting dependability. Can be keyed alike to match other etrailer locks. Great Prices for the best trailer tongue lock from etrailer. etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome part number e98888 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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etrailer Trailer Tongue Lock - e98888

  • Keyed Alike
  • Latch Lock
  • etrailer
  • Steel
  • 3-3/8 Inch Span
  • Universal Application Lock

Designed primarily for brake actuators that lock through the body, this lock has a covered keyhole and chrome plating to help prevent corrosion. Steel construction ensures long-lasting dependability. Can be keyed alike to match other etrailer locks.


Features:

  • Coupler lock secures the ball coupler of your trailer brake actuator to deter theft
    • Trailer can't be removed from your tow vehicle when locked onto ball
    • Would-be thieves can't secure your unhitched trailer to their tow vehicle with the coupler locked either
  • Large span is ideal for trailer brake actuators that fit 2-5/16" balls
  • Tamper-resistant design
    • Conical shaped housing ensures tight fit against coupler latch
    • Pick-proof screw-and-lock mechanism provides security
  • Rubber end and textured lock core make it easy to grip lock
  • Plastic cap covers key slot to help prevent internal corrosion
  • Sturdy steel construction
  • Chrome finish resists rust and corrosion
  • 2 Reversible, automotive-style keys included
  • Locks can be keyed-alike to match other etrailer locks
    • Select "Keyed Alike" from drop down menu above and enter number of locks into Quantity box
  • Made in the USA


Specs:

  • Application: surge brake couplers that lock through the body
  • Inside pin length (span): 3-3/8"
  • Overall length: 6-7/8"
  • Pin diameter: 1/4"
  • 1-Year warranty


etrailer Lock Compatibility

Note:

  • Lock can be keyed alike to match other etrailer locks.
  • To order keyed alike locks, select "Keyed Alike" from drop-down menu above and enter number of locks in Quantity box.


e98888 etrailer Trailer Coupler Lock for Surge Brake Couplers with 3-3/8" Span -Tow Ready 63213 - Rola 59104

Alternate part number: 28012







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Customer Satisfaction Score:

Ratings & Reviews

4.8

544 reviews
5 Stars
(464)
4 Stars
(52)
3 Stars
(14)
2 Stars
(8)
1 Star
(6)
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by:
Perfect fit for my Airstream Basecamp 20X. As always etrailer excels on fast shipping. Thanks again
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by:
Perfect for my trailer. Fast shipping, great service.
by:
Will not unlock. Straight from the package. Did not have time to return it so I had to purchase simple non-locking couple safety pin to be able to pull my trailer.
by:
Perfect for the Demco EzLatch on my utility trailer. Very easy to use and provides the security for my trailer that I sought.
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The D. profile picture

The D.

8/4/2021

Works very well, and as intended. Adds a sense of real security & safety.

by:
I was sent a follow up email asking how I liked the lock, and I have to say that I liked it enough to buy it a second time after I LOST THE KEYS!!! Because losing keys in my job!!! But yes it is a great lock for my trailer, because it has an odd coupler that a pin goes completely through it and you can’t use a standard padlock or coupler lock. The coupler locks sold at local stores were not long enough to go through the coupler, so I has to search the internet and I found this at trailer.com and it works! I would definitely recommend this lock if you have this style of coupler.
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by:
They work great with our Demco couplers!
by:
Good value since the coupler lock works exactly as intended. Best part - even tho outside year around in Seattle weather, no corrosion since chrome plating more than adequate. Works on both electric and surge brake couplers with thru-body locks requiring extra length (span).
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by:
I needed a unique style trailer tongue lock on a new to me trailer. Not only was the etrailer webpage easy to use, I found what I needed pretty quickly.The lock arrived in 4 business days, which doesn't surprise me because every time I place an order with etrailer.com, it arrives fast ! Thanks again, I'll be back.
Brooke M. profile picture
Etrailer Expert

Brooke M.

6/18/2025

That's great, Daniel! I'm curious - what kind of trailer did you get? Hauling anything fun?

by:
Fits well, operates smoothly.
I had an issue with one of the locks I ordered and Amy with customer service did a great job rectifying the problem.
THANKS!
by:
Excellent transaction
by:
Exactly what I needed, and a great help getting it ordered with a couple certain specifications.
by:
Screw cap under key control interesting concept.
by:
Exactly what I needed!!
by:
As described, perfect fit and looks good. Quick ship as well. Thank you etrailer.com!!
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by:
Does exactly what I needed it to.
by:
I have broken 2 locking coupler locking pins due to tongue moving forward with surge brakes. This product is not an ideal solution as you need to spin on and off with the key to lock and unlock the pin. Turning a key 10-15 times to screw in and out is a pain. This will be a back up at best to some other solution I am still seeking.
Sierra K. profile picture
Etrailer Expert

Sierra K.

12/1/2021

You may like this product better as it is just one turn of a barrel key which makes it a little easier: Item # MT76FR.

Helpful Links

Accessories-and-PartsMaxxTowMT76FR.html

by:
Great product! I bought this coupler lock to replace others that kept bending while pulling my boat. After a year and fishing about once a week, pulling over mountains, and having to hit the brakes hard a couple of times, this coupler has held up superbly! etrailer is my go to place for all trailer products, great selection of products, super description of their products, often with video link, fantastic service and very competitive prices!
Edward B. profile picture

Edward B.

3/6/2022

Super! Works as good today as the day I receivedit!

by:
The product being thin to fit the tongue hole size can only be expected do so much. It can deter nuisance tampering and that us exactly what I purchased it for. Any thief could easily defeat this device but that is expected from any lock in this situation.
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

3/7/2025

You might be surprised! Sometimes a little roadblock can send a thief heading for the hills away from your trailer.

by:
This steel lock mechanism will only keep an honest person away. I hit the lock with a hammer and it cracked off, rendering it useless. The key loxk has to be spun on, so if you keep the rubber protector in place its a pain to screw on with the key inserted. Get a reL trailer lock that goes in the ball mechanism. Do not wastevyoyr money on this styleock it is useless against and criminal intetent.
Sierra K. profile picture
Etrailer Expert

Sierra K.

5/24/2022

Any lock can be tampered with until it fails. Item # BLTL-50-40D would be a good option for you.

Helpful Links

Gooseneck-Trailer-LocksBlaylock-IndustriesBLTL-50-40D.html

by:
I ordered this lock and an etrailer branded coupler lock as etrailer’s website says it can be keyed alike to any other etrailer branded lock. I required them to be keyed alike. I received two locks that were keyed differently. There were extra lock cores in the box like someone was going to change them out, but shipped them without doing so. I followed up with customer service to inquire as to why and was told that these locks can only be keyed alike to the same type of lock, not other locks. I was then told they would send the correct replacement lock. Then was told that was not possible. I requested to return my order for a refund as the website was very unclear as to what locks could be keyed alike. I received a refund for less than the cost of one of the locks. Worst experience with etrailer ever. I won’t be buying from them again.
by:
Excellent lock. No rust, no problems despite exposure to the elements all year long.
by:
I bought this coupler lock, because my hitch was too wide for a standard coupler to work. It works fine and looks great. It is a pain to have to keep turning the key around and around to "unlock" the device from the hitch. From a theft or security perspective, it is awesome.
by:
I chose this Trailer Surge Brake Coupler Lock because of its ease of use. The screw on/off function makes installation and removal easy. I also purchased a Trailer Hitch Receiver Lock from e-trailer and had the locks keyed alike.
by:
Just installed on trailer. Looks to be well made. Fit like a glove and keys worked well. We will see how well it holds up, my guess I think it will be fine.
Raymond profile picture

Raymond

4/17/2022

Still going strong, no problems !!!!

by:
Great Product! We ordered 6 of these for our fleet of trailers. Very convenient with all the same key. Also purchased the matching coupler locks.
We are very happy with both the products AND customer service at etrailer. They are our first and only call for trailer supplies.
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Show More Reviews

See what our Experts say about this etrailer Trailer Tongue Lock

Do you have a question about this Trailer Tongue Lock?
  • Coupler Lock Recommendation for Demco EZ Latch Style Coupler
    The Demco Channel Tongue Trailer Coupler - Zinc - 2-5/16" Ball - 3" Channel - Bolt On - 18K # DM14040-81 has an integrated 5/16 inch pin hole with a 3 inch span for that lockable feature. I recommend using the Trailer Coupler Lock # e98888 which has a 3-3/8 inch span and is 1/4 inch diameter.
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  • Is There A Coupler Lock Compatible With The Demco Hydraulic Brake Actuator DM72VR?
    To lock the latch of the Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 7,000 lbs # DM72VR you were looking at you will need the etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome # e98888. This lock goes in the hole shown in the included picture and keeps the coupler closed so no one can hook up a hitch ball when the trailer is sitting around, and will also make it so no one can remove the trailer from your hitch ball when it is hooked up to your truck. I...
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  • Recommended Coupler Lock for a Dexter DX7.5L A-60 Brake Actuator
    Hey Javier. To secure your Dexter DX7.5L A-60 Brake Actuator item # DX56FR, I recommend our etrailer Surge Brake Coupler Lock item # e98888. This will allow you to lock the coupler to the ball. It will also secure your coupler so no one else can connect their vehicle to it and drive away. I attached a picture below that will show you how the item # e98888 attaches. You'll want to make sure your brake actuator has that hole if you don't have the Dexter item # DX56FR. Do you see any part...
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  • What Size Lock Pin Is Needed for the Coupler on the Yakima Rack and Roll Trailer Part # Y08107
    It sounds like you are referring to a coupler latch lock that is used to lock the latching mechanism of the coupler onto the hitch ball. If this is the case then you would want to use a 1/4" diameter pin like part # e98886. I have attached a photo of where this pin will need to be installed on the Yakima Rack and Roll Trailer part # Y08107 for you as well.
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  • Replacement for Atwood 61101 Brake Actuator
    Hey Adam! Demco is actually one of the higher quality options, and I would recommend it as a replacement for your Atwood 61101. Nothing is without negative reviews, and the majority for the Demco Hydraulic Brake Actuator # DM72VR are positive. Demco has a great reputation overall and makes reliable products. This will be a nice upgrade from your Atwood since it features the EZ-Latch coupler. This lets you drop the coupler onto the hitch ball without having to open the latch first. It looks...
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  • How to Lock a 1970 Camper to Truck When No Hole Exists for Padlock
    Hey Beverly, thanks for reaching out! If your older coupler doesn't have a hole through it for a locking pin, then we'll either need to get you setup with a replacement coupler, like the A-Frame Trailer Coupler # CA-5210-B, or you'll need to carefully drill a hole through the latch on your coupler and use a pin lock like the etrailer Surge Brake Coupler Lock # e98888. Aside from that there just simply aren't any options that fit over your coupler while it's connected to your tow vehicle.
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  • Recommended Base Plates For 2011 Ford Focus Compatible With Roadmaster Tracker And Flat Tow Parts
    For your 2011 Ford Focus, in order to use the Roadmaster Tracker Tow Bar, your only option is to use the Roadmaster EZ Base Plate Kit - Removable Arms # 524413-1A and unfortunately the instructions you have are all I can offer. The pictures help walk you through it. In the attached instructions you will drill 2 holes and the location will be based on the bracket's other holes that fit into predrilled locations, so it will be easy to mark accurately. The torque specs for the bolts are...
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  • Coupler Lock Recommendation For Dexter DX7 Coupler
    Hello Bob, thanks for reaching out. We have a few option for locks that will fit the Dexter DX7 coupler. For a locking pin I recommend the etrailer Surge Brake Coupler Lock # e98888. This will allow you to lock the coupler to the ball. The picture below shows it installed on a similar Dexter surge brake coupler. If you are looking for a lock for while the trailer is in storage, I recommend the Blaylock EZ Lock Trailer Coupler Lock # BLTL-33. We have confirmed that this will fit on the...
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  • Is there a Coupler Lock for a Dexter DX7.5L A-60 Brake Actuator?
    Welcome back Randy. To secure the Dexter DX7.5L A-60 Brake Actuator item # DX56FR, I recommend our etrailer Surge Brake Coupler Lock item # e98888. This will allow you to lock the coupler to your tow vehicle's hitch ball. It will also secure your coupler so no one else can connect their vehicle to it and drive away. For a stronger visual deterrent while your trailers in storage, the Fastway Universal Coupler Lock item # FA86-0015-316 will mount inside the ball opening and wrap around the...
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  • Recommended Keyed Alike Hitch Pin and Coupler Locks
    Hey Josh welcome back! We do indeed have hitch and coupler locks that can all be controlled by the same key. For your tow vehicles, I recommend the etrailer Trailer Hitch Receiver Lock item # e98880 for 2" hitches or item # e98881 if you have a 2-1/2" or 3" hitch receiver. Please note that the 2" lock item # e98880 does not fit the Toyota receivers with the wider welds surrounding the receiver. For your Channel Tongue Trailer Coupler like item # CT-5003-Z, you'll need the etrailer Trailer...
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  • Replacement Coupler Lock for a 03133 AL-KO AK 26
    Hey Val! Is it similar to the etrailer Coupler Lock # e98888? I tried looking up that part number online but was unable to find anything about it. Feel free to shoot any photos to me in a reply to the email you received from me if the lock design is different!
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  • Is There Demco Surge Coupler that Can be Used with Drum Brakes
    Hey Al, so we have a solution but since disc brakes require a higher PSI than drum the # DM62VR would not work on drum brakes. Instead you'd want to go with the part # DM72VR which is basically the exact same thing but made for drum brakes. You can lock this to a hitch ball with the coupler lock like the etrailer # e98888.
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  • Pin Lock To Secure Bulldog Collar Lok Coupler to Hitch Ball
    Which specific Bulldog coupler do you have? Does it have a latch with a pin in it by chance?
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  • Recommended Trailer Coupler Latch Lock
    Hey Lonnie, welcome back. The 7/8" Span etrailer Trailer Coupler Latch Lock item # e98889 you were looking at is going to be the best style of trailer tongue lock we have that can be keyed alike. We have these in quite a few different spans but they all fit 1/4" pin diameter like the Demco item # DM14793-81 and item # DM14040-95 you purchased this year. I have listed our options below: 2" Span item # e98886 2-1/2" Span item # e98887 2-3/4" Span item # e39PR 3-3/8" Span item # e98888 You...
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  • How to Get etrailer Lock Core Keyed to the Same Number I Have on My Other etrailer Locks
    Hello Danny, Yes, it was a lovely Thanksgiving with family. Hope you enjoyed yours as well. We unfortunately do not sell just the pin portion. We do have one with a longer span, the etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome # e98888, it does have the keyed alike option for an addition $1.75 so we can match it to your other locks. I suggest giving our customer service a call to place the order so they can ensure you get the right key number. 1-800-940-8924...
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  • Recommended Surge Brake Coupler Locks that Can Be Keyed Alike
    Hey Jerry. I have a solution for you but the InfiniteRule Lock item # IR66FR can not be keyed alike. Instead, I recommend one of our etrailer Surge Brake Coupler Locks like item # e98888 that can be. We have quite a few of these for different style couplers and so long as you order them at the same time and select Keyed Alike before you add them to your cart they all can be controlled by the same key. I have listed our options below by their usable span. The span is the width of the coupler...
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  • Electric Trailer Jack Options for a 2005 Northwood Nash M-16C Trailer
    I have several electric trailer jacks that will work with your 2005 Northwood Nash M-16C which I have attached a list of for you. I recommend the Stromberg Carlson Electric Trailer Jack part # JET-3755. This jack has a 3,500 lb capacity (tongue weight) and offers up to 24" of lift. It has a drop leg for faster lifting, LED lights for visibility, and a built-in bubble level. I have also attached a review video of this jack.
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  • Lock for Demco Hydraulic Brake Actuator
    Hi Frank; I'm sorry to say the # IR66FR is not compatible with your Demco Hydraulic Brake Actuator # DM72VR since it is stamped and not cast. For whatever reason they don't have a different version for that Demco coupler style. You will have to stick with a standard pin lock like # e98888 or get a surround lock like the BulletProof Hitches Extreme Duty Coupler Lock # BPH96VR. I like the surround style since it takes more work for your average thief to defeat it. What kind of trailer do...
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  • Can I Get More Keys for my etrailer Lock?
    Hey, Terry. You sure can get an extra key! The part number for key number 028 is # e65UR. It will match your existing key. The listing will show a picture of a generic blank key, so it wont show the exact key, but you will get the key number you need. If you ever need to get additional etrailer locks keyed to key number 028 it would be best to call in to place the order. That way we can make sure they are keyed properly for you. Are you wanting to get an extra key to store away just...
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  • Keyed Alike Coupler And Hitch Locks
    Hi Elliott! We do have options that can be keyed alike and I have a few of those listed below: etrailer Hitch Receiver Lock for 2" and 2-1/2" Hitches - Flush - 3-5/8" Span - Chrome # e98881 etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome # e98888 etrailer Trailer Coupler Latch Lock - 7/8" Span - 1/4" Diameter - Chrome # e98889 I wasn't 100% sure by what you meant with "1 trailer coupler lock", so I included two options for the coupler lock. If you meant something...
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  • What Brake Fluid & Lock For Demco Hydraulic Drum Brake Actuator
    Hi Mike, For the Demco Hydraulic Brake Actuator - Drum # DM72VR, Demco just recommend using any DOT 3 or 4 brake fluid, and a 12 oz. bottle will be fine, which you can find at any type of auto parts or big chain store. As for bleeding the brakes, you won't be able to use a vacuum bleeder, you'll need to follow the directions that come with the actuator and do that by hand. Then for a lock, you can either use a pin lock like # e98888 or surround lock like # FA86-0015-316.
    view full answer...
  • Can I Order Multiple Weigh Safe Lock Sets WS28ZR And Get Them Keyed Alike?
    Hello Ricky, thanks for reaching out. I am sorry to say we do not offer a keyed-alike option for the Weigh Safe Lock Set # WS28ZR. You can absolutely order multiple sets, but there is no guarantee both sets will use the same key. If you are looking for a coupler lock that can be keyed alike we do have the following: - etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome # e98888
    view full answer...
  • Pin Lock to Secure Dexter Surge Actuator 099-175-20
    Hey Charles, the etrailer coupler lock part # e98888 would work great to lock the Dexter brake actuator # 099-175-20 to your hitch ball.
    view full answer...
  • Looking For Surge Brake Coupler Lock With Keyed Alike Option
    Hello Joseph, thanks for reaching out. I do have a potential option for you, but sadly we do not offer a keyed alike option for the etrailer Adjustable Trailer Coupler Latch Lock # e98883, so there would be no way for us to do 20 of them with the same key. We do have a few other similar locks with a keyed alike option. Take a look at the following: - etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome # e98888 - etrailer Surge Brake Coupler Lock - 2-1/2" Span - 1/4"...
    view full answer...


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