1. Gooseneck Coupler
  2. Bulldog
  3. Square Tube
  4. Coupler with Outer and Inner Tube
  5. 40000 lbs GTW
  6. 3 Inch Gooseneck Ball
Bulldog BX1 Gooseneck Coupler - Adjustable Height - Square - 3" Ball - 40,000 lbs

Bulldog BX1 Gooseneck Coupler - Adjustable Height - Square - 3" Ball - 40,000 lbs

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Gooseneck Coupler
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Bulldog Coupler with Outer and Inner Tube - BD1289200300
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Square gooseneck coupler fits 3" ball and includes inner and outer tube. Large locking plate makes hookup fast and easy. Ball pocket contacts ball on both sides for tight fit with less rattle. Grease fittings simplify maintenance. Call 800-298-1624 to order Bulldog gooseneck coupler part number BD1289200300 or order online at etrailer.com. Free expert support on all Bulldog products. Guaranteed Lowest Price and Fastest Shipping for Bulldog BX1 Gooseneck Coupler - Adjustable Height - Square - 3" Ball - 40,000 lbs. Gooseneck Coupler reviews from real customers.
  • All Info
  • Reviews (209)
  • Q & A (6)
  • Photos
  • Why etrailer?

Bulldog Gooseneck Coupler

  • Square Tube
  • Coupler with Outer and Inner Tube
  • 40000 lbs GTW
  • 3 Inch Gooseneck Ball
  • Bulldog
  • Manual Latch

Square gooseneck coupler fits 3" ball and includes inner and outer tube. Large locking plate makes hookup fast and easy. Ball pocket contacts ball on both sides for tight fit with less rattle. Grease fittings simplify maintenance.


Features:

  • Sturdy inner tube pairs with existing outer tube to create adjustable gooseneck coupler
  • Oversize funnel makes it easy to guide ball into socket
    • Bottom locking plate is 50 percent larger than competition
    • Coupler engages even if you miss the ball by just over an inch
  • Tight ball fit helps to reduce jarring and rattling
    • Ball pocket provides contact on both sides of ball
  • One-handed operation with easy-to-use handle
    • Lockable with padlock (sold separately)
    • Oil-impregnated bushings increase life of locking mechanism
  • Smooth operation over time
    • Integrated grease fittings throughout make for simple maintenance
  • Superior, high-strength steel construction


Specs:

  • Gross towing weight: 40,000 lbs
  • Vertical load limit: 10,000 lbs
  • Ball size: 3"
  • Dimensions:
    • Retracted height: 22"
    • Extended height: 24-9/16"
    • Range of vertical adjustment: 2-9/16"
    • Number of adjustments: 2
    • Minimum torque value on set screw: 225 ft/lbs
    • Outer tube length: 20"
    • Inner tube length: 18-3/8"
    • Inner tube wall thickness: 5-16"
  • Limited 5-year warranty


The BX1 gooseneck coupler from Bulldog is designed to provide the easiest, most secure hookup possible. The bottom locking plate on this coupler is 50 percent larger than the competition, providing additional surface area to guide the ball into the socket. Miss the target by just over an inch and the coupler will still engage.


Bulldog BX1 Gooseneck Coupler Locking Plate

Once hookup is complete, use the easy-to-access, easy-to-maneuver handle to lock the coupler to the ball. When the handle is down, you know that everything is secure and it's okay to tow. For extra security you can insert a padlock (sold separately) through the fixed plate.


Once you begin towing, you may notice that there is far less rattle and jarring at the coupled point than you'd experience with a standard gooseneck coupler. This is because the ball pocket on the BX1 provides contact on both sides of the hitch ball, rather than on only one side, which is typical of the competition. The result is a tight fit around the ball that makes for a smoother, quieter and more secure towing experience.



1289200300 Bulldog BX1 Gooseneck Trailer Coupler - 40,000 lbs

Item # BD1289200300

Installation Details BD1289200300 Installation instructions


California residents: click here



Customer Reviews

Bulldog BX1 Gooseneck Coupler - Adjustable Height - Square - 3" Ball - 40,000 lbs - BD1289200300

Average Customer Rating:  4.8 out of 5 stars   (209 Customer Reviews)

Square gooseneck coupler fits 3" ball and includes inner and outer tube. Large locking plate makes hookup fast and easy. Ball pocket contacts ball on both sides for tight fit with less rattle. Grease fittings simplify maintenance.

- BD1289200300
by:

Honestly i feel short changed the welds should really be 100% across regardless of whether necessary or not. Some oil so it didnt rust during shipping would of also been appreciated but again not end of the world. The welds appear to be robotic if they're by hand they did an awesome job.of what was done but again, for the time to finish the seams wouldnt of been a real big deal on the production side, but i sure do appreciate the capacity its rated and i plan on using it to its fullest. Thanks again



- BD1289200300
by:

The service and timeliness of etrailer is unmatched in the industry.


Comments
We actually used the product in production of a new trailer, so I do not have access to it any longer. However, I am certain it is still doing well for my customer, as I have not heard otherwise.
Stacey - 01/11/2019



- BD1289200300
by:

This is a well made coupler. I use it on a custom made trailer that hauls backhoe and excavator daily. The lock/unlock mechanism is easy to use.



- BD1289200300
by:

We received the product in a really good condition. Thanks



- BD1289200300
by:

Excellent service and prompt delivery.



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


great product recommend to anyone needing a goose neck coupler easy to center easy to lock and to unlock from towing vehicle ball i use on a bw hitch so this coupler raises high enough to connect on a higher ball



- BD1289040300
by:

Review from a similar BX1 in Gooseneck Coupler


I had a fixed neck on my 32' cattle trailer and with the newer trucks the ball sits so high that my front axle on the trailer was barely touching the ground. After replacing the fixed hitch with the bx1 my trailer rides level. It does exactly what I was hoping it would do!! GREAT PRODUCT!!!



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


My f800 Ford has a tall hitch height . This allowed me the extra distance I needed to tow my trailer . Very low profile .


Comments
It’s been working great and have zero complaints.
Eddie - 03/18/2019



- BD1289140300
by:

Review from a similar BX1 in Gooseneck Coupler


replaced a clamshell type coupler with the bulldog bx1 unit couldnt be happier FANTASTIC - STEVE



- BD1289070300
by:

Review from a similar BX1 in Gooseneck Coupler


Easy to operate



- BD1289020300
by:

Review from a similar BX1 in Gooseneck Coupler


Great, well built product and support. I had several questions about this product and someone from their technical support team promptly responded multiple times until all of my questions had been answered. By far the best bang for the $$$. It would have been nice if it had come pre-painted or at least primed but the decals had peel off covers so you could simply paint it the color of your choice and then peel off the covers and it looks great. Very well built and sturdy product. Can't ask for more.



- BD1289210300
by:

Review from a similar BX1 in Gooseneck Coupler


Julie at etrailer got me just what we needed and got it here in time for the move! We were replacing an older goose neck coupler that had become damaged. Although a original replacement wasn’t available Julie found a newer model that would fit and worked out perfect! Super easy to hook up the trailer with this new BX1 coupler!! Thanks!!



- BD1289040300
by:

Review from a similar BX1 in Gooseneck Coupler


Excellent product and service. I replaced the hitch on my 36 ft PJ due to hole ripping out. I made a modification to the hitch to reinforce the hole as shown in pictures.



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


I ordered the bulldog bx1at 9:30pm and it was on my porch 3 days later. Absolutely amazing turn around time. Installed it the next day on a trailer project with no issues with the product at all. I will order from etrailer from now on. Great product and easy one handed operation.



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


I bought a dump trailer that had a 5th coupler on it. Switch to a gooseneck for the weight capacity and this has been a great coupler. Easy to use and holds tight. Pulled a lot of weight with it with no problems or damage. Would buy again if I needed one.


Comments
Coupler is still working great. Has some surface rust around the latch area since I did not paint it there. All and all still works good as new.
Michael S - 04/22/2020


- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


I needed this to get the goose lower on my lifted flat bed. My old tube had a partial double collar and could not get it any lower. This fit, has a great latch and no double collar. It arrived covered in surface rust, wish they came at least metal etched primed. Fast shipping as always from etrailer! Thanks!!



- BD1289020300
by:

Review from a similar BX1 in Gooseneck Coupler


The customer service at etrailer is amazing! I had ordered a gooseneck coupler not realizing that was on back order until april. I called and explained what had happened and they quickly found a similar product that was in stock and ready to ship. I actually received it the next day. Everything fit and works just like it should. I will definitely be using and recommending etrailer in the future!



- BD1289030300
by:

Review from a similar BX1 in Gooseneck Coupler


Easy to operate



- BD1289020300
by:

Review from a similar BX1 in Gooseneck Coupler


I replaced my old bulldog coupler with the newer BX1 coupler, it's so much nicer and easier to lock/unlock. I've not actually used it yet, I did locked the ball in the coupler on my original and the BX1 to compare and it was a much tighter fit. I can tell I'm going to love it - can't wait to pull my bobcat, I'm sure it's going to be a smooth ride.


Comments
Just hauled my bobcat 325 miles and my BX1 coupler did and awesome job! No worries pulling with this coupler...it’s so much safer than my old one.
KT - 12/14/2017



- BD1289210300
by:

Review from a similar BX1 in Gooseneck Coupler


Would not have been able to use trailer without it truck was to tall. Tons of misalignment is allowed for hooking up. If etrailer was smart they would sell the pin to lock the latch with the receiver. Can't use standard hardware because clearance is tight. Has to be the correct oddball Lynch pin. If they do sell it, make it like other sites 'customers frequently bought with this...'



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


This place sent me what I need in a very timely manner.



- BD1289040300
by:

Review from a similar BX1 in Gooseneck Coupler


I bought a 2017 Ford F250 which was higher than my 2011. I replaced a different bulldog hitch with this on my cattle trailer and was able to get more adjustment to completely level my trailer. I actually only used the insert. I really like the lock! The cupped design also makes it easy to go on the ball. I got a great product at a great price! Thanks guys!



- BD1289210300
by:

Review from a similar BX1 in Gooseneck Coupler


The BulldogBX1 gooseneck coupler was sent to me in a very timely manner and is very well built the mearsurements were perfect and is a perfect fit. Installation was a breeze. I am converting from fifth wheel to this bulldog gooseneck coupler.This product is being used on our 42ft. homemade triple axle Toyhauler our total weight will be around 20,000 lbs. We take our ATVing very seriously LOL ! Can't wait to take it out on our next outing. We have been using etrailer for quite some time now and the personnel at etrailer has always been fantastic. F & C



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


There is not a locking load bearing pin manufactured to Bulldog's knowledge that fits these types of tubes. People usually steal the trailer and not the tube (unfortunately for me the idiots stole my tube and not the trailer). Standard coupler locks are 1/4" shank usually, and the end of the load bearing pin has a .20" hole for the retainer pin. Bulldog sees no reason why it couldn't be drilled out to support a 1/4" coupler lock that will fit on the end of the 3/4" diameter load bearing pin. I have not yet performed this modification of the load bearing pin, but will upload pics once complete.



- BD1289020300
by:

Review from a similar BX1 in Gooseneck Coupler


Very efficient. Quick service. Wi definitely be doing more business with etrailer.


Comments
Great
Larry T - 05/16/2020

28
212
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Ask the Experts about this Bulldog Gooseneck Coupler

  • Diameter Of Bulldog BX1 Gooseneck Coupler Base
    I went to the warehouse and took a couple measurements of the Bulldog BX1 Gooseneck Coupler # BD1289200300. This coupler measures 8 inches x 9 inches (see attached photo). This is taking into account the release handle on the base of the coupler. Since gooseneck balls are typically on the outside of the truck bed the clearance needed is not given, but I would make sure you have plenty of room for the coupler to move.
    view full answer...
    Image 1 for
  • Gooseneck Coupler that Fits 3 inch Ball
    Are you looking for a gooseneck coupler to weld onto your trailer that would be tall enough? I am not totally sure I understand your question but we do have the Bulldog BX1 part # BD1289200300 which fits 3 inch balls which is our only option for 3 inch balls. It has an extended height of 24-9/16 inch and a retracted height of 22 inch.
    view full answer...
  • How Much Does Bulldog BX1 Gooseneck Square Coupler # BD1289200300 Weigh?
    The Bulldog BX1 Gooseneck Coupler - Adjustable Height - Square - 3" Ball - 40,000 lbs # BD1289200300 you were looking at weighs in at 60lbs. I included a video of the # BD1289200300 for you to take a look at.
    view full answer...
  • Availability of 35,000 Pound Gooseneck Coupler
    The Convert-A-Ball Multi-Cushioned Gooseneck Trailer Coupler # CG referenced in your question is the highest rated cushioned coupler we have available. It features a towing capacity of 30,000 pounds and a tongue weight limit of 4,000 pounds, so it is definitely under-rated for your trailer that may get up to around 35,000 pounds loaded. The only other gooseneck coupler we have available that has a higher rating is the Bulldog BX1 # BD1289200300, however this is a square coupler for 3...
    view full answer...
  • Coupler Needed For 3 Inch Gooseneck
    If you are looking for jus the coupler head, we have the Redline Gooseneck Coupler Head with Pin 3 Inch Ball # WF2. If you need the coupler with the inner and outer tube, we offer the Bulldog BX1 Gooseneck Coupler, Square, 3 Inch Ball # BD1289200300.
    view full answer...
  • Does Bulldog BX1 Gooseneck Coupler BD1289200300 Include A Coupler
    The Bulldog BX1 Gooseneck Coupler - Adjustable Height - Square - 3" Ball - 40,000 lbs # BD1289200300 you ordered already has a coupler installed so you will not need the # WF2 you were looking at. I included a video of the # BD1289200300 for you to take a look at.
    view full answer...

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