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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Adjustable Trailer Coupler
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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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Product Images

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. Call 800-298-8924 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 (285)
  • Q & A (4)
  • Videos (1)
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Bulldog Adjustable Trailer Coupler - BD028585

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

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





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

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




Video Transcript for Bulldog Adjustable Trailer Coupler - Coupler Only - BD028585 Review

Today we're going to be taking a look at part number BD028585. This is the Bulldog Collar-Lok Coupler. It's a nice gray in color and it's going to be rated at 12,500 pounds. The heavy duty coupler is going to let you hook up your trailer to your tow vehicle. It's going to provide a great connection point for your 2-5/16 inch hitch ball making this unit ideal for utility, livestock, cargo and construction trailers. Now it's going to feature a ball and socket joint.

This portion right here is going to close tightly around your hitch ball. It's going to allow for multi-directional movement to keep the trailer from binding. It's also going to feature a nice spring-loaded hinge with a stop tab that's going to let you hook up quickly. This back here is going to be our pin. This is going to keep that collar from being able to slide back enough so that our ball disengages, so that's a safety device right there. If you remove that, you'll notice that it's held on there with a chain.

That means it's always going to stay close at hand. We don't ever have to worry about misplacing it or losing it. Now the spring-loaded feature, when I slide this collar all the way back, this side portion here on the bottom is going to kick out to the side. It's going to do it on its own. Be sure and get it pulled back all the way.

As you can see there, it kicks out to the side. This is going to put the ball area right here in an open position. You can see this is the spring that's installed right there internally. Now it gives us a nice opening so we can place this over our 2-5/16 hitch ball, make our connection and get on the road. Now once we have it connected, all we have to do is pull the collar back a little bit, close this portion and then drop the collar back over. Now one of the things that's really neat about the collar-lok system is that's going to give you a visual indication that the coupler is securely closed over the ball.

Then you're going to have the pin-style fastener. This is going to hold the collar in place around the base of the hinge ball socket. Again, that pin is chained on there so you don't ever have to worry about misplacing it or losing it. It's going to feature an anti rattle design. They do make this a light weight version simply by hollowing out the shank here. On some of these type of units, you're going to see that they have a solid shank and you're also going to see and feel that they're very heavy. Bulldog hollows out this portion right here, makes it drop a little bit of weight and again, you're still going to have that guaranteed capacity at 12,500 pounds, so very strong and very durable mount. Now you can see that the connection back here, this is where you're going to mount it. This is an adjustable channel mount design. It's going to let you change the coupler's height depending on the application. It's going to include the hardware. These are grade 5 mounting bolts and nuts as well as the lock washers. All those are included. The only thing that's going to be sold separately is going to be your channel bracket. There should be a couple of those listed on the product page underneath the related items. These bolt holes are going to be separated on 2-inch centers and then the distance that we have in between my fingers here, taking a measurement of that . it's going to be about 2-7/8 of an inch. These are going to fit channel mount brackets with that internal width for spacing of 3 inches. This is SAE standard compliant. It's got a nice finish on it, steel construction with that corrosion resistant gray powder coat so it's going to stand up really well against rust and corrosion. Again, this is designed to fit hitch ball sizes of 2-5/16 of an inch. It's going to offer a weight capacity of 12,500 pounds and if we take a measurement of the overall length, measuring edge to edge, that's going to give us a measurement from the very back to the very front. It looks to be about 10-1/2 inches. That's going to do it for today's review of part number BD028585. This is the Bulldog Collar-Lok Coupler rated at 12,500 pounds. .


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   (285 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.

- BD028585
by:

Quality product as I thought it would be. First time order from etrailer, timely shipping. 310432


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

29955

- BD028585
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... 659720



- BD028585
by:

Excellent product, fast delivery time 593376



- BD028585
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 pĂ­ntle ring on my trailer and I am extremely happy I did !!! 583500



- BD028585
by:

Looks like a good product 487158



- BD028585
by:

Great prices,great products, great customer service , and fast delivery. Couldn't ask for more! 382358



- BD028585
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. 296245



- BD028585
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. 284406



- BD028386
by:

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


Excellent product and fast shipping. Product exactly as advertised. A-frame hitch and jack very good quality. Great to have sites of this quality on the internet!!! 228832



- BD028499
by:

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


Best coupler ever - well worth the slightly higher cost. Very easy to operate and slightly more tolerant of misalignment with the ball when hitching up. I keep a plastic deadblow hammer handy to operate it. Way more secure attachment then the cheap Mau coupler that came with trailer which came uncoupled by itself. 310645



- BD028463
by:

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


Very pleased with item shipping Great and Stacey A very helpful Thanks 501173



- BD028499
by:

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


Works great. Welded it on and was ready to go. Have ordered from etrailer before, and just like every time before my parts arrived very promptly and have never had any complaints with service. Will definitely be using etrailer again. 265563



- BD028499
by:

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


This is exactly what I was looking for. This is a very good heavy coupler. It is replacing a 5K surge brake toledo bulldog coupler on a trailer I have beefed up with 600# of steel to the 10K level. To save $$$ and maintenance issues I am going to electric brakes after I decide on current axles or not. Very speedy shipping: I did not expect to see it untill 16 July 12. I have ordered from you several times and you have always exceeded my service expectations and your prices are very competitive. 47860



- BD028386
by:

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


The coupler was received filthy dirty, with huge runs in the paint, rust spots, and chips down to bare metal. A young child could have done a better job painting it. In addition, the holes for the trailer jack are poorly punched. 339423



- BD028463
by:

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


Easiest hook up there is. The first time I bought one of these connectors I was in Texas. They are easy to find out there. Well I have a problem with my tow vehicle. It has a spare tire hanging right on top of my receiver ball. The connector that came with the trailer required about 6+" of space between the ball and the tire, which I did not have, I could lengthen the ball out which I definately wanted to avoid. This connector was the answer to my situation. I went up north last weekend to visit my son and when I got back this connector was setting on my front porch, this was about 4:30 PM. Before I went to bed it was installed on my trailer, after I cut the existing one off ofcourse. This connector connects up like a dream, it's self centering, has no adjustments, so you do not have to worry if it is too tight or too loose and may come apart. I modified the toung on my last trailer also and used this same connector, it's neat, sweet and compleat. I may be in the market for a load leveler kit. 337



- BD028657
by:

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


I changed out the conventional ball hitch on a dump trailer to a bulldog style hitch. There were issues ensuring the original hitch was on the ball correctly. The Bulldog hitch will eliminate that potential problem. Installation was easy. Took about 10 minutes to get the old hitch off and the new one on. The only improvement that I would suggest is to have the lever to retract the collar as the lighter Bulldog hitches do. This one simply has a sliding collar that must be forced back by hand. I always use my foot on the hitches with the lever. But this is a Bulldog issue and not an etrailer issue. etrailer service was outstanding. 469915


Comments
Still outstanding after a year
Krumdriller - 01/25/2019

48855

- BD028657
by:

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


Great site. This is the second time that I have purchased items from etrailer. Your web page is easy to use and I like the product videos. The trailer couplerI bought was very good and fit properly. 380099



- BD028381
by:

Review from a similar Bulldog Collar-Lok 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. 109607



- BD028287
by:

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


Excellent Coupler with low price. I replaced the older Bulldog hitch with this one. The channels made it easy to weld it onto 3" channel iron. I prefer the low profile style, instead of the high profile model. I also purchased a lock from etrailer.com that goes through the hitch, replacing the normal clip that it comes with ( pn 28012). They also shipped me a 2" receiver hitch lock ( pn 7683) for my truck, and they keyed the two locks to the same key. 191173



- BD028383
by:

Review from a similar Bulldog Collar-Lok 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 663229



- BD028287
by:

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


Replacement for worn out receiver on old trailer. Wish Bulldog were made in the USA, not Mexico. But, the others are made in China, which is even worse. 92372


Comments
No problems. Remember to keep a hand on the lever when squeezing shut and let the slide close gradually so you dont pinch your other hand. I keep mine lubed with bicycle chain lube with Teflon. Also, i always grease the ball. Yes, that is messy but the metal-to-metal squealing is prevented and your coupler will last forever.
Art o - 01/28/2015

9023

- BD028242
by:

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


item worked as expected. I used the product to create a push bar to move vehicles in and out of my shop. by putting one of these couplers on either end of a pipe, I am able to move non running vehicles in and out of my shop as needed. couplers are very secure. 749930



- BD028288
by:

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


Way better than the original one I cut off. Much heavier than what is needed, But east to use. No more having that tongue getting in the way. 749835



- BD028444
by:

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


Worked like a charm put it on a 6 ton pull type fertilizer spreader 746613



- BD028244
by:

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


Installed new coupler on wheeled fish. I unhook and hook up a lot. Old style ball hitch was difficult to unhook, new style will just slip on and off without issue of getting caught. New ball hitch is also suppose to be the safest on the market. So far working perfect. 739672


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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...
  • 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...
  • 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...
    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...

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Info for this part was:

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

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