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  1. Adjustable Trailer Coupler
  2. Bulldog
  3. 2-5/16 Inch Ball Coupler
  4. Coupler Only
  5. 12500 lbs GTW
  6. Pin-Style Fastener
Bulldog Collar-Lok Coupler - Gray - Adjustable Channel Mount - 2-5/16" Ball - 12,500 lbs

Bulldog Collar-Lok Coupler - Gray - Adjustable Channel Mount - 2-5/16" Ball - 12,500 lbs

Item # BD028585
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Retail:$193.78
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Adjustable Trailer Coupler
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Shipping Weight: 10 lbs
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Bulldog Collar-Lok Coupler - Gray - Adjustable Channel Mount - 2-5/16" Ball - 12,500 lbs Pin-Style Fastener BD028585
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The collar on this heavy-duty coupler slides over the hinge for unmistakable security. Tight, rigid mount design ensures a strong, rattle-free connection. Mounts in 3" channel bracket (sold separately) with included bolts - no need for a wrench. 1-800-940-8924 to order Bulldog adjustable trailer coupler part number BD028585 or order online at etrailer.com. Free expert support on all Bulldog products. Guaranteed Lowest Price and Fastest Shipping for Bulldog Collar-Lok Coupler - Gray - Adjustable Channel Mount - 2-5/16" Ball - 12,500 lbs. Adjustable Trailer Coupler reviews from real customers.
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  • Reviews (445)
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Bulldog Adjustable Trailer Coupler - BD028585

  • 2-5/16 Inch Ball Coupler
  • Coupler Only
  • 12500 lbs GTW
  • Pin-Style Fastener
  • Bulldog

The collar on this heavy-duty coupler slides over the hinge for unmistakable security. Tight, rigid mount design ensures a strong, rattle-free connection. Mounts in 3" channel bracket (sold separately) with included bolts - no need for a wrench.


Features:

  • Heavy-duty coupler lets you hook up your trailer to your tow vehicle
    • Provides connection point for hitch ball
    • Ideal for utility, livestock, cargo, and construction trailers
  • Ball-and-socket joint closes tight around ball
    • Allows for multi-directional movement to keep trailer from binding
    • Spring-loaded hinge with stop tab quickly releases without overextending
    • Force transfer feature keeps latch from torquing or breaking
  • Collar-Lok gives visual indication that the coupler is securely closed
    • Pin-style fastener holds collar in place around base of hinged ball socket
      • Pin is chained to coupler so you won't lose it
  • Rigid channel mount with anti-rattle design significantly reduces noise
    • Hexagonal indents in coupler mounting channel hold nuts in place so you can easily tighten bolts for a firm connection
  • Downward bias offers better ball contact and a clean, straight-line look
  • Adjustable channel mount lets you change coupler's height depending on application
    • 4 Grade 5 mounting bolts with locknuts included
    • Channel bracket sold separately
  • Lightweight hollow shank
  • Heavy-duty steel construction
  • Gray powder coat finish resists corrosion
  • SAE standard compliant


Specs:

  • Application: 3" wide channel bracket
  • Ball size: 2-5/16"
  • Weight capacity: 12,500 lbs
  • Length: 10"
  • 5-Year limited warranty


Rigid Mount Design

This rigid-mount coupler fits tightly within the channel bracket (sold separately) for a secure and rattle-free connection. Four mounting bolts with nuts are included for installation.


Hexagonal Grooves

Hexagonal grooves are cast into the inside of the coupler's channel to hold the nuts in place for you as you tighten the bolts down when mounting the coupler in your trailer's channel bracket. This not only makes installation faster and easier, but it also allows for a tighter fit that eliminates movement and noise. It also reduces any jolting that occurs during acceleration and braking.


Collar-Lok Connection

Collar Lok

The ball-and-socket joint of the coupler keeps the hitch ball captive by providing a continuously tight fit. Within the socket, the ball retains full range of motion so that it can rotate in any direction to keep your trailer from binding up.


To hook up your trailer, simply lower the coupler over the hitch ball and close the hinged latch around the ball. Then slide the Collar-Lok over the latch. When the collar is in place, it not only protects the hinge joint, but it also gives you visual assurance that the latch is securely closed. As a final step, slide in the coupler pin. This pin is chained to the coupler so you won't lose it. Because the pin hole is angled instead of being straight up and down, inserting and securing the pin is easy.


Spring-Loaded Hinge

Simply reverse the steps to unhook your trailer from your tow vehicle. Slide the pin out and push the Collar-Lok back.The spring-loaded hinge will pop open for a quick release. A built-in stop tab will keep the jaw from flinging out too far as the coupler opens. The stop tab is a unique addition that prevents the hinge from overextending.


The latch has a force-transfer feature to add stability as the ball is forced against it on bumpy roads. This keeps the hinge joint and latch from breaking or torquing to extend the life of the coupler.


Downward Bias

The downward bias of the coupler improves the angle at the articulation point and allows for a better connection with the hitch ball. The result is better support for heavy loading and a nice, streamline look.



028585 Bulldog Collar-Lok Coupler - Adjustable Channel Mount - Pin Style - 12,500 lbs - Gray

Replaces BD028630






Customer Reviews

Bulldog Collar-Lok Coupler - Gray - Adjustable Channel Mount - 2-5/16" Ball - 12,500 lbs - BD028585

Average Customer Rating:  4.8 out of 5 stars   (445 Customer Reviews)

The collar on this heavy-duty coupler slides over the hinge for unmistakable security. Tight, rigid mount design ensures a strong, rattle-free connection. Mounts in 3" channel bracket (sold separately) with included bolts - no need for a wrench.

by:

Much better than the stock hitch. Good quality manufacturing.



by:

Part was as described, shipped quickly and arrived in good shape. Bolts were included.



by:

I have bought a few of these over the years for all my trailers. I have never had a problem with Bulldog couplers. They have updated the design on this one. The rear channel casting has hex insets cast into the channel. It uses (4) bolts instead of (2). This makes it nice to adjust height and easier to get the bolts thru. It is also nice because it does not have to deflect the channel so much to get tight. Really like the changes and the quality is still great.



by:

It take a bit of getting used to, but you can certainly tell this is a best in class hitch. I pulled my 2006 crew cab longbed 7500 lbs. truck across the country on my PJ car hauler...

Once at new home I used trailer\hitch to haul 4klbs. - 5klbs. of fence material - no worries...



by:

Ordered my adjustable bulldog coupler for my trailer so I could get rid of my pintle hitch.Got upgraded on my shipping for free. Coupler arrived ahead of schedule. I'll definitely be doing business with etrailer again.



by:

Quality product as I thought it would be. First time order from etrailer, timely shipping.


Comments
Still very pleased.
Hasty - 10/26/2017


by:

This coupler is super strong. The weld is of excellent quality and the piece itself is nice and heavy duty. Just make sure you keep it lubricated with good old wd40 for the sliding collar and the opening mouth and this thing will work every time. I used this to replace that sloppy píntle ring on my trailer and I am extremely happy I did !!!



by:

Great prices,great products, great customer service , and fast delivery. Couldn't ask for more!



by:

Fast shiping



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Excellent product, fast delivery time



by:

Great hitch, easy install.



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Looks like a good product



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Review from a similar Collar-Lok Coupler in Adjustable Trailer Coupler


Five star service from etrailer, and maybe a two or three-star product from Bulldog. Aside from the rust and the fact that the collar is so stiff that it can't be operated by hand, the fabrication on the steel attachment plate is poor. The holes for the tongue jack are punched out, twice in some cases, resulting in an enlarged hole, but there are no threads for the tongue jack so you'll have to fumble around and use nuts underneath. The vertical angles on the steel are wrong, so it will splay out at the bottom and won't fit tightly to the A-frame and you will need to shim it out. The interior of the casting is full of weld spatter that will chafe the tow ball. I bought the less-expensive Ram sleeve-lock coupler under a Curt label and the fabrication is much better, having none of the problems the BullDog did. etrailer kindly sent me an RMA to return the BullDog.


Comments
We hate to see rust and other complications when it comes to the products that we sell. I have sent this information over to our customer service team for them to contact you.
-- Etrailer Expert Katrina B - 04/25/2022

by:

Review from a similar Collar-Lok Coupler in Adjustable Trailer Coupler


The Bulldog coupler is SO MUCH easier to hitch up and disengage than my previous coupler which required several back and forth movements of my tow vehicle to engage/disengage the hitch ball.



by:

Review from a similar Collar-Lok Coupler in Adjustable Trailer Coupler


A great product. The original crappy hitch on our new trailer was always a real pain to unhitch. Typically would have to keep the trailer wheels chocked and let the tow vehicle (no brakes and in neutral) roll forward or back freely while raising the tongue - only then would the ball be released from the ball socket. Not good when on a slope. A few times we actually had to pull out the 5/8" ball mount pin and drive forward and let the ball mount slide out of the receiver. No issues at all with the Bulldog hitch. And it's nice to have the positive and easy-to-verify clam-shell hitch mechanism instead of the sliding yoke lock of the original hitch. $200 bucks to have the old hitch torched and ground off and the Bulldog welded on. Money and time well spent.



by:

Review from a similar Collar-Lok Coupler in Adjustable Trailer Coupler


Really fast shipping, install only took 15 min, and much more solid than the original coupler on the trailer that used two long bolts (which wore and caused the holes to get oblong making the connection to the trailer sloppy), as compared to the four bolts provided with the new coupler.



by:

Review from a similar Collar-Lok Coupler in Adjustable Trailer Coupler


Solid coupler a good company. The coupler doesn’t have any mechanism to assist in sliding the collar back but I welded on to nubs to pull it back with. I wanted several Master disk padlocks keyed alike but Etrailer could not get those for me so I went with a different online trailer co. that offered a six pack of them at a good price.



by:

Review from a similar Collar-Lok Coupler in Adjustable Trailer Coupler


The collar hitch was put on my home made trailer and we use it 2-3 times a week. It is smooth working and easy to hook up. Thanx



by:

Review from a similar Collar-Lok Coupler in Adjustable Trailer Coupler


After purchasing a trailer that came with a Collar-Lok coupler standard, we decided to swap out more of our standard couplers over to the this style. So far this product has held up very well. The only downside is the finish/coating is a bit cheap and it started showing corrosion within a few weeks.


Comments
What I recommend is touching up the coupler with a rust resistant spray to help prevent rust.
-- Etrailer Expert Jenny N - 01/18/2022

by:

Review from a similar Collar-Lok Coupler in Adjustable Trailer Coupler


I bought this old really cheap to rebuild. One of the parts that had to be replaced was the hitch, I towed it home with my fingers crossed. I googled trailer hitch, trailer and etrailer was one of the sites that was suggested. I had to find a hitch that fit the 3 1/2" pipe that was the tongue, voila there it was to my amazement. I ordered it right then, 4 days later it was delivered yesterday. Today I mounted it, it was an easy installation and I am really pleased with the hitch and install. My fears of losing a trailer are now history, tomorrow it gets tested with 1 1/2 yards of gravel for the slab for my new. shop



by:

Review from a similar Collar-Lok Coupler in Adjustable Trailer Coupler


The couplers (3) are of excellent quality. Ordering was very simple by telephone. All questions were answered. Shipping was immediate and the product arrived in an unmolested box which surprised me due to the weight. I expected the box to be dented and the corners smashed. Tracking of shipments was important to me. Couplers will be installed on a rather unique vehicle. Each of the three cars of this miniture train will receive the new couplers.


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Ask the Experts about this Bulldog Adjustable Trailer Coupler



  • Center-To-Center Measurement For Mounting Holes On Bulldog Collar-Lok Coupler
    I went to the warehouse and measured the distance between the mounting holes on the Bulldog Collar-Lok Coupler, part # BD028585. The center-to-center distance is 2 inches. This coupler mounts in a 3 inch channel bracket and is 10 inches long. The ball size this coupler is designed for is 2-5/16 inches.
    view full answer...
    Image 1 for
  • Dimensions of Bulldog Collar-Lok Coupler BD028585
    The inside mounting channel width is just under 2 inches, while the outside width (as you mentioned), is just under 3 inches, designed to fit into a 3 inch wide channel, like # BDAC5000300. The overall length is 10 inches, as shown in the attached photo.
    view full answer...
    Image 1 for
  • Bulldog Collar-Lok Coupler - Gray - Adjustable Channel Mount - 2-5/16 Ball - 12,500 lbs Origin
    The Bulldog Collar-Lok Coupler - Gray - Adjustable Channel Mount - 2-5/16" Ball - 12,500 lbs # BD028585 is made in China. Bulldog is a registered brand of Horizon Global Corporation and is based in Plymouth, Michigan. We also offer the Demco Slide-Lok Trailer Coupler - Adjustable Channel Mount - Primed - 2-5/16" Ball - 12,500 lbs Item # DM05557-97 which is manufactured in Boyden, Iowa.
    view full answer...
  • Can a Weight Distribution System be Used With a Bulldog Adjustable Coupler BD028585?
    Though the Bulldog Collar-Lok Coupler # BD028585 coupled with something like the Demco 5-Position Adjustable Channel Bracket # DM13867-52, with modifications to make it fit your trailer, would get your coupler raised up, it would not be able to use your weight distribution system. This will be due to the head of the system being far higher than the spring bar brackets on the frame of the trailer. This will cause problems when hooking up and turning and will not allow the spring bars to...
    view full answer...
  • Could Bulldog and Curt Channel Coupler Fit in Lock N Roll Channel
    The channel of the # 336TS505 is wide enough to accommodate the # BD028585 and # C25328 and the hole spacing is correct at 2 inches and hole diameters are 5/8 so it would work well.
    view full answer...
  • Weight Distribution for a Car Trailer with a Channel Coupler 4 Inches Higher than the Trailer Frame
    The way I would go about this is to lower your coupler height or use a coupler similar to the Bulldog Collar-Lok Coupler w/ Pin - 2-5/16 inch Ball - Adjustable Channel Mount - 12,500 lbs, item # BD028585, and mount it so that the coupler is in the correct position to allow a weight distribution hitch to be used with the trailer and coupler. Make sure the coupler you select will accommodate the total weight of your trailer and the loads on it. You would then use a weight distribution system...
    view full answer...
  • Recommended Adjustable Ball Mount to Replace Curt Rebellion XD With Bulldog Collar-Lok Coupler
    For a replacement shock-absorbing adjustable ball mount I recommend the Gen-Y Torsion 2-Ball Mount w/ Stacked Receivers - 2" Hitch - 7-1/2" Drop/Rise - 10,000 lbs # 325-GH-1025. The Gen-Y design is incredibly sturdy and will have no problem handling your trailer. This uses a stacked receiver design and has a heavy-duty steel construction. The Gen-Y requires a tongue weight of 400-1,000 lbs for the shock-absorption to work so at 4,000 lbs you should be meeting that requirement. It also...
    view full answer...
  • Recommended Trailer Coupler & Wheel Locks
    The best type of lock for your Bulldog adjustable 2-5/16-inch trailer coupler depends on the coupler design. If you have a Bulldog Collar-Lok Coupler like # BD028585 then I would go for the Blaylock Total-Encasement Coupler Lock # BLTL-23 over the Fastway # DT25013KA simply because it fully surrounds the coupler. Deterrent value is high! If you have other trailers to lock then in that case the flexibility of the Fastway could make it your better option. For just this one trailer, go for...
    view full answer...

Do you have a question about this Adjustable Trailer Coupler?




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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Laura H
Updated by:
Laura H
Employee Cole B
Installed by:
Cole B
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Shelly K
Written by:
Shelly K

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