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  1. Straight Tongue Trailer Coupler
  2. Bulldog
  3. 2 Inch Ball Coupler
  4. 3 Inch Channel
  5. Standard Coupler
  6. 7000 lbs GTW
Bulldog Collar-Lok Coupler w/ High-Profile Latch - 2" Ball - 3" Channel Tongue - 7,000 lbs

Bulldog Collar-Lok Coupler w/ High-Profile Latch - 2" Ball - 3" Channel Tongue - 7,000 lbs

Item # BD028387
Our Price: $101.23
You Save: $126.44
Straight Tongue Trailer Coupler
This item qualifies for Free Shipping
Shipping Weight: 11 lbs
BD028387 - Flip Latch Bulldog Straight Tongue Trailer Coupler
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Heavy-duty coupler has a high-profile latch and hinged ball socket that offers a tight fit with visual indication of proper closure around the ball - all to ensure quick, easy and secure hookup. Designed for use with square or rectangular tongues. Great Prices for the best straight tongue trailer coupler from Bulldog. Bulldog Collar-Lok Coupler w/ High-Profile Latch - 2" Ball - 3" Channel Tongue - 7,000 lbs part number BD028387 can be ordered online at or call 1-636-306-4830 for expert service.
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  • Reviews (500)
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  • Videos (1)
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Bulldog Straight Tongue Trailer Coupler - BD028387

  • 2 Inch Ball Coupler
  • 3 Inch Channel
  • Standard Coupler
  • 7000 lbs GTW
  • Weld-On
  • Bulldog
  • Flip Latch

Heavy-duty coupler has a high-profile latch and hinged ball socket that offers a tight fit with visual indication of proper closure around the ball - all to ensure quick, easy and secure hookup. Designed for use with square or rectangular tongues.


  • Heavy-duty coupler is ideal for utility, livestock, cargo and construction trailers
  • Collar-Lok design offers automatic, continuously tight fit for absolute security
  • Hinged ball socket makes hookup a snap
  • High-strength steel is durable
  • Visual indication of proper closure provides additional peace of mind
  • Square or rectangular, tongue-mount design
  • High-profile latch for ease of use
  • Weld-on application


  • Tongue: 3" wide
  • Ball size: 2"
  • Length: 16-1/4"
  • Capacity: 7,000 lbs
  • Limited 5-year warranty

028387 Bulldog Collar-Lok Coupler, Square/Rectangular Tongue Mount, High Profile Latch, 7,000 lbs - 3B4H

California residents: click here

Video of Bulldog Collar-Lok Coupler w/ High-Profile Latch - 2" Ball - 3" Channel Tongue - 7,000 lbs

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

Video Transcript for Bulldog Straight Tongue Trailer Coupler - Standard Coupler - BD028387 Review

Today, we're going to review part number BD028387. This is the Bulldog Collar-Lok Coupler with High-Profile Latch. This Bulldog heavy duty coupler is ideal for utility, livestock, cargo and construction trailers. The Collar-Lok design which is the spot right here offers automatic and continuously tight fit for absolute security. There is also a hinged ball socked right here which makes hookup a snap. This coupler is designed of a high-strength steel which is very durable and it does have a visual indication of proper closure which will provide additional piece of mind.

Basically, what you would do is if you would pull this pin to release the latch, move the latch which would slide this Collar-Lok back. And as you can see, the spring will load it, hinge will open up and allow you to release from the trailer ball. And then when you close it, just pull your latch down and it would lock the hinge part over the ball. This coupler is designed for square or rectangle tongue mount design trailers. It is a weld on application and quickly I'll give you a measurement here.

It fits on a 3-inch wide tongue. It will feet on a 2-inch ball size. The overall length on this coupler will be 16-1/4 inches and, again, it does have a weight capacity. It comes with a limited five-year warranty. And basically again, if you'll just pull the latch up, the Collar-Lok will slide back which will release the hinge ball socket.

And that should do it for our review on part number BD028387.

Customer Satisfaction Score:

Customer Reviews

Bulldog Collar-Lok Coupler w/ High-Profile Latch - 2" Ball - 3" Channel Tongue - 7,000 lbs - BD028387

Average Customer Rating:  4.8 out of 5 stars   (500 Customer Reviews)

Heavy-duty coupler has a high-profile latch and hinged ball socket that offers a tight fit with visual indication of proper closure around the ball - all to ensure quick, easy and secure hookup. Designed for use with square or rectangular tongues.


LOVE this Bulldog hitch! I welded it to my new custom built motorcycle trailer and I will never go back to the other kind again. So much easier to get a positive connection. I also like the integrated lock hole in the latch. It's definitely worth the money.


Arrived promptly. Well packaged and went on without a hitch. Mounted it on with grade 5 bolts instead of welding it on in case I ever need to replace it or want to put it on a different trailer. Just a tip use 4 in x1/2 bolts with a lock nut and it’s a perfect fit.


Product arrived in a short time and was just what I was after. With this style of coupler you don't have to do any guess work about knowing if the coupler is properly locked on or not, it's a foolproof solution. I am extending the tongue on my atv/utv trailer and wanted the best coupler I could get.

The coupler has lived up to its hype and works perfectly.
Aaron F - 04/07/2017


Very reliable, rugged performance. No problems with its main purpose: Securing the trailer. But there are a few things that could be improved. For one, Bulldog doesn't offer bolt-on installation on any of its couplers. I'd much prefer to use 1/2-inch Grade 8 bolts rather than permanently weld on the coupler. And it's easy to pinch your fingers on the collar sleeve when closing. And due to the sliding collar design, it's darn near impossible to keep the whole thing painted, because the sliding collar wears off the enamel. Still, it's much easier to line up than a regular yoke/latch coupler, and it's much more rugged.


Replaced my old hitch with the Bulldog hitch. I love it! It centers itself and there is no hassle trying to center it on the hitch ball. Great product.

I still think it’s a great product a year later. It is much easier to connect my trailers with the bulldog hitch.
John - 06/14/2018


The bulldog hitch coupler is clearly the most bomber hitch that u can put on your trailer toung. Thanks to etrailer, it is also very affordable. I'm replacing all of my old hitch couplers with bulldogs.


Arrived in a timely fashion and was just as represented. The price was right and the merchandise is quality. Will return the next time I need trailer parts.

We have put this hitch to the test and it has held up well. Very happy with the service and the fact that they checked back to how the product was holding up. That says alot for customer satisfaction. Will be here when we need more trailer parts for sure.
Mike G - 06/05/2017


Just what I was looking for. I ordered this couplers for my feed trailer that came with just a pin hitch. Trailer holds 3 ton. This coupler should handle that wait with no trouble. Very satisfying with the product and etrailer.


Have not welded on "Bulldog Collar-Loc Coupler (7,000 lbs) on my trailer yet. The reason I bought it was, I bought from "Ft. Knox Locks" the "Bulldog Lock (siding collar" lock that didn't work with my setup. Your product is of very high quality and the Ft Knox's product is also the same "heavy duty" and quality.


Etrailer is a awesome company to work with, easy shipping, good decriptions, friendly service, these guys know there products


I have always liked the Bulldog hitch for its simplicity and strength. Etrailer was prompt with delivery and reasonable with the price.


I use only bull dog hitches. Still using the hitch though my wife may have broken the top piece. (somehow) local place repaired and added parts to put on a lock.


What I needed at the best price on the estimated delivery date. Can't ask for much more. Website is very helpful with product information. Either missed it or it wasn't there that I would have to drill this to fit my trailer tongue. Will definitely order from etrailer again.


Bulldog hitch was perfect. Also, traiiler lights showed up a day early. Donna in customer service was great abd very knowledgeable.
George in Savannah


My stuff came today on ups. All in good order. Well packaged and no damage. It all went according to plan. Thanks Etrailer.


Since I have purchased Bulldog products in the past I knew what I was buying and your prices with shipping beat everyone else's.


My experience with e was excellent. product was as described. Notified immediately order was recieved via email. Delivered on time.


Heavy duty coupler, just what I needed to extend my trailer tongue


Product was shipped in record time. Very pleased with etrailer. Will be glad to order from them in the future.


very fast shipping , reasonable pricing , great products


Outstanding piece of equipment.


Great product


Works great. My guys love it


I was pleasantly surprised at how quickly my parts arrived. Great prices and free shipping, win- win.


Works great would order again!!!!

Show More Reviews

See what our Experts say about this Bulldog Straight Tongue Trailer Coupler

  • Can I Bolt On a Weld On Bulldog Collar-Lok Coupler
    It may be possible to install a Bulldog Collar-Lok Coupler w/ High-Profile Latch # BD028387 on your trailer by drilling holes in it and using grade 5 or higher bolts to secure it to your trailer, but since it has never been tested I can not safely recommend you do it. We also do not sell this particular coupler pre-drilled. We have many bolt on couplers that you could install on your trailer with bolts but none of them are collar-lock style. I attached a page that has all of our bolt on...
    view full answer...
  • Will Bulldog Coupler Fit In 3 Inch Square Tubing
    The Bulldog Collar-Lok Coupler # BD028387 will work for you, but it will not be able to be placed inside your 3" square tubing; instead, it will actually weld onto the tube. Square couplers are designed to fit over the straight tongue as opposed to slid inside it like you sometimes see with round tube couplers.
    view full answer...
  • Is There a Bolt On Bulldog Collar Lok Coupler with High Profile Latch
    Due to the heavy duty nature of the Bulldog Collar-Lok Coupler w/ High-Profile Latch - 2" Ball # BD028387 the fits are all weld-on and not bolt on.
    view full answer...
  • Differences Between Bulldog Collar-Lok Couplers
    The biggest difference, as you noted, is that the Bulldog # BD028387 has a 7,000 lbs weight capacity while the Bulldog # BD028382 has a 5,000 lbs weight capacity. Other than that and their color, the only other differences are that the # BD028387 is a 1/4" longer and about a pound heavier.
    view full answer...
  • Recommended Lock For Bulldog Collar-lok Coupler With Trailer Hooked to Vehicle
    If you have a bulldog collar-lok coupler with a hole with pin like part # BD028387, you can use Bulldog Easy Access Coupler Lock part # BD580409. The Bulldog Coupler lock allows you to keep the trailer hooked up to the vehicle while locked. This will also work on a Bulldog A-frame coupler like part # BD44150W0317.
    view full answer...
  • Can a Bulldog Collar-Lock Coupler Replace The Coupler On an Enclosed Trailer?
    The Bulldog Collar-Lok Couplers are made to fit different style trailer tongues. You can determine which would work best based on your enclosed trailer. 3" Channel Tongue # BD028387 3-1/2" Round Tongue # BD028383 1-3/4" Round Tongue # BD028381 You may be able to adjust or replace part of the coupler mechanism on your enclosed trailer to reduce the risk of it coming off your trailer ball again. If you can send me the information off your trailer tongue along with an image of the coupler...
    view full answer...
  • Weight Capacity Of Trailer Coupler On New Flat-Bed Tandem Trailer
    I have attached a helpful article that explains trailer hitch balls and their capacities. As the article states, 2 inch balls are typically rated with a towing capacity between 3,500 lbs to 8,000 lbs. A 2-5/16 inch ball is normally rated to be able to handle loads between 6,000 and 30,000 lbs. I recommend returning to the dealer that sold you the trailer for a clarification. If you can see the rating on the coupler reads it is rated for 7,000 lbs, that would be for the towing capacity...
    view full answer...
  • Availability of Straight Coupler Replacement for Titan Aero 7500 Brake Actuator # T63FR
    The Titan Aero 7500 brake actuator, part # T63FR, has a 2-inch ball and fits a 3 inch wide channel tongue. It has a weight capacity of 7,500 lbs. In a straight bolt-on coupler with a 2 inch ball that fits a 3 inch wide channel, the coupler with the highest weight capacity would be the Titan Leverlock Coupler - Adjustable Ball, part # T4845000. This coupler will only have a weight capacity of 5,000 lbs, which is lower than the 7,500-lb capacity on the Titan Aero 7500 brake actuator. The...
    view full answer...

Do you have a question about this Straight Tongue Trailer Coupler?

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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Laura H
Updated by:
Laura H
Employee Alexander C
Updated by:
Alexander C

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