1. Gooseneck Coupler
  2. Bulldog
  3. Square Tube
  4. Coupler with Outer and Inner Tube
  5. 30000 lbs GTW
  6. 2-5/16 Inch Gooseneck Ball
Bulldog BX1 Gooseneck Coupler - Adjustable Height - Square - 2-5/16" Ball - 30,000 lbs

Bulldog BX1 Gooseneck Coupler - Adjustable Height - Square - 2-5/16" Ball - 30,000 lbs

Item # BD1289140300
lowest price pledge
Retail:$409.62
Our Price: $242.02
You Save: $167.60
Gooseneck Coupler
This item qualifies for Free Shipping
Shipping Weight: 63 lbs
Quantity: 
BD1289140300 - 2-5/16 Inch Gooseneck Ball Bulldog Coupler with Outer and Inner Tube
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Videos

Square gooseneck coupler fits 2-5/16" 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 800-298-8924 to order Bulldog gooseneck coupler part number BD1289140300 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 - 2-5/16" Ball - 30,000 lbs. Gooseneck Coupler reviews from real customers.
  • All Info
  • Reviews (181)
  • Q & A (11)
  • Photos
  • Why etrailer?

Bulldog Gooseneck Coupler - BD1289140300

  • Square Tube
  • Bulldog
  • Coupler with Outer and Inner Tube
  • 30000 lbs GTW
  • 2-5/16 Inch Gooseneck Ball
  • Manual Latch

Square gooseneck coupler fits 2-5/16" 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:

  • Ball size: 2-5/16"
  • Retracted height: 31"
  • Extended height: 39"
  • Range of adjustment: 8"
  • Outer tube width: 4-1/2"
  • Inner tube width: 4"
  • Capacity: 30,000 lbs
  • Vertical load limit: 9,000 lbs
  • 5-Year limited 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.



1289140300 Bulldog BX1 Gooseneck Trailer Coupler - 30,000 lbs

Installation Details BD1289140300 Installation instructions


California residents: click here



Customer Reviews

Bulldog BX1 Gooseneck Coupler - Adjustable Height - Square - 2-5/16" Ball - 30,000 lbs - BD1289140300

Average Customer Rating:  4.9 out of 5 stars   (181 Customer Reviews)

Square gooseneck coupler fits 2-5/16" 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.

- BD1289140300
by:

Great product, received faster than exp ected. 872510



- BD1289140300
by:

This review is mainly about etrailer’s customer service.....it was exceptional. I had some specific questions about fit and they promptly responded each time with detailed answers. They shipped out immediately after ordering and it arrived exactly as described. These guys know their products and aim to please! Thanks again for the great service. 652910



- BD1289140300
by:

Well made, nice looking coupler. 629479


Comments
Used rarely, but works well and well made.
Steve - 04/20/2020

73679

- BD1289140300
by:

Customer Service was EXCELLENT! The part was a newer model part, fit perfectly and came 3 days before they promised. The trailer is out working and making money right now. Thanks! 559116



- BD1289140300
by:

The 5th wheel hitch has performed perfectly. I am pleased with the quality as I haul cattle and hay and require the performance. 347032



- BD1289140300
by:

Excellent quality, fast delivery 323520



- BD1289020300
by:

Review from a similar BX1 in Gooseneck Coupler


Lets go with bullet points!!! •FREE SHIPPING! •ARRIVED in 3 days! •Lowest price I could find! •Enhanced my trailer! •Quality product! Thanks etrailer, you came through for me again! 474257



- 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. 455175



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


This gooseneck hitch is exactly what I was looking for. It fit right into the existing neck on my horse trailer. The latching mechanism is great! I can now hook and unhook my trailer by reaching into the bed without having to actually climb up onto the truck. 378490



- 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...' 436956



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


Replaced my old one with this on my 20k GN as it was getting hard to unlatch. This one also helps with hooking up with the large opening and you can lock it with a padalock. The latch design is easier than the old style and easy to tell if it is latched or not. 365487



- 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 . 485899


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

50683

- BD1289020300
by:

Review from a similar BX1 in Gooseneck Coupler


Exactly what I needed! 900966



- BD1289020300
by:

Review from a similar BX1 in Gooseneck Coupler


Very fast shipping. The inner coupling is exactly what I was looking for. The new design latch is a big plus. Will differently does business with again 892228



- BD1289040300
by:

Review from a similar BX1 in Gooseneck Coupler


product did not come with the label on it like it says in the video 889531



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


etrailer had exactly what I needed and at a good price. 875536



- BD1289210300
by:

Review from a similar BX1 in Gooseneck Coupler


Great service! 867874



- BD1289020300
by:

Review from a similar BX1 in Gooseneck Coupler


This part replaced an old couple. This is well built, but the service from etrailer on the order was excellent. 821924



- BD1289210300
by:

Review from a similar BX1 in Gooseneck Coupler


Pretty good product, dimensions are as described. I bought it for the low profile, it will let us get a few more inches of height out of our gooseneck connection. Shipped and delivered on time, which is always appreciated. Be aware, this is shipped unpainted. I will spray paint mine to keep it from rusting. Haven't put it into use yet, I will update my review when I put it on the gooseneck. 801786



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


Worked great! Replaced factory coupler on PJ goose. This set 6 in lower which was perfect height for my Dodge Ram 2500 4x4. 795270



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


This receiver worked out really well it gave me 7 inches more adjustment in my trailer 795091



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


I love this coupler awesome awesome I’d give it 5 stars but I’d like it to come with some kind of paint. 793678



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


correct part, fast delivery 791025



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


Great product and service. Do you have any Bulldog stickers? That would look great on my trailer. 787329



- BD1289050300
by:

Review from a similar BX1 in Gooseneck Coupler


Very solid products. The fit was perfect and latches really well. 785557


25
183
Show More Reviews

Ask the Experts about this Bulldog Gooseneck Coupler

  • Recommended Heavy Duty Gooseneck Coupler For Clearance and Adjustability
    It sounds like you want vertical adjustability for 30K gooseneck coupler. It appears you may be seeking 30 inches of vertical travel and we don't have anything with that capacity. The normal range is 7-8 inches but the retracted heights can vary. We have the following options for you: Bulldog Gooseneck Coupler- Round - 30,000 lbs # BD0289500300 with 8 inches vertical travel with a retracted height of 29-1/3 inches. Ram Gooseneck Coupler - Topwind - Square - 30K # GCSQTW-30008 with...
    view full answer...
  • Can Gooseneck Trailer be Leveled After Coupler is Attached
    You should make sure your level is trailer before coupling the Bulldog BX1 Gooseneck Coupler # BD1289140300 because as you can see by the cut out of the linked manual for this coupler: "The load bearing pin must be fully insough both the inner and outer tubes and the retaining pin installed inserted through both the inner tubes and outer tubes in order for the coupler to support its rated load." This would not allow you to adjust the height of the coupler with a fully supported load.
    view full answer...
  • What is the Outer Width of the Inner Tube for Bulldog Gooseneck Coupler # BD1289140300
    The outside dimension of the inner tube of Bulldog gooseneck coupler # BD1289140300 is 4 inches square. If you are looking for just a square inner tube we have some of those as well: # BD0288660300 # BD1289210300
    view full answer...
  • Installation Direction for Bulldog BX1 Gooseneck Coupler BD1289140300
    Bulldog BX1 Gooseneck Coupler # BD1289140300 typically installs with the handle shaft facing to the rear so that the flat part of the coupler will face the driver's side of your tow vehicle. The position gives a bit of protection to the handle. Installation and operation instructions are linked for you.
    view full answer...
  • Bulldog BX1 Gooseneck Coupler Compatibility with Recessed Gooseneck Ball in Flatbed
    For the Bulldog BX1 Gooseneck Coupler # BD1289140300 my contact there advised that the size of flatbed gooseneck ball recess needed for compatibility with this coupler is no less than 6-inches all around from the ball center. They recommend a recess size of 12 x 12-inches to provide complete clearance.
    view full answer...
  • Square Gooseneck Coupler For Trails West Combo Horse Trailer
    From my research it looks like the Trails West combo horse with living quarters 2005 model has a square Bulldog Gooseneck Coupler. All of the square inner tubes available have the holes for the pins. A lot of trailer manufacturers have switched from set screws to lock pins for safety reasons. It may be best to just replace your whole gooseneck coupler with Bulldog BX1 Gooseneck Coupler part # BD1289140300.
    view full answer...
  • Replacement Inner Gooseneck Trailer Coupler Tube that Doesnt Use Load Bearing Pins
    As far as an inner tube only, the BX1 coupler # BD1289170300 is the only option. It sounds like you need one that is held in the outer tube with set screws such as # CG or # BD0287690300. Coupler # CG has a 4 inch diameter tube and # BD0287690300 has a 4-1/2 inch tube. The other option is to replace both the outer and inner tube with # BD1289040300, # BD1289030300, # BD1289000300, # BD1289080300, # BD1289070300, or # BD1289140300. These are all BX1 couplers for 2-5/16 inch balls...
    view full answer...
  • Gooseneck Trailer Coupler Like # BDGN240200 Is Difficult To Operate
    Since the # BDGN240200 is a weld-on application. I am not sure if it would be easy to just change out the coupler on your trailer as it will require cutting and grinding to prep for the new weld. You may simply want to try some white lithium grease to see if that frees up the current mechanism a bit and makes it easier to unhook the trailer. It is designed to allow you to move the lever to open the jaws and pull the vehicle out. If that does not help you may want to consider either...
    view full answer...
  • Gooseneck Trailer Couplers with Both the Outer and Inner Tubes
    It sounds like you want a gooseneck coupler that includes both the outer and inner tubes. The outer tube is permanently welded to the trailer and the inner tube is the adjustable part with the coupler. We have several options, see link below. The most popular is Bulldog Gooseneck Coupler - Adjustable - Round - 2-5/16" Ball - 30,000 lbs Item # BD0289500300. We also have some square tube options such as # BD1289140300.
    view full answer...
  • Replacement Gooseneck Coupler with Outside Diameter of 4-1/2 inches
    You will want to make sure that the inside diameter of 4 inches is the same, but the Bulldog BX1 Gooseneck Coupler # BD1289040300 has an outside diameter of 4-1/2 inches and will fit the standard gooseneck ball size of 2-5/16 inches. It is rated for 30,000 lbs, has a retracted height of 24-1/2 inches and has a vertical range adjustment of 8 inches. This gooseneck coupler also comes with a Limited 5-Year Warranty.
    view full answer...
  • Is There A Handle Repair Kit for Bulldog BX1 Gooseneck Coupler Available
    There is a repair kit available for your Bulldog BX1 Gooseneck Coupler - Adjustable Height - Square - 2-5/16" Ball - 30,000 lbs part # BD1289140300 with repair kit part # BU54FR. The repair kit includes: Handle assembly Locking cam Grooved pin Flanged bushing with built-in grease fitting Torsion spring
    view full answer...




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality gooseneck coupler for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate gooseneck coupler information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Expert Research:
Michael H
Expert Research:
Adam R
Written by:
Laura H
Video Edited:
Dustin K
Updated by:
Alexander C
Updated by:
Hannah L
Updated by:
Isabelle B

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.


Product Experts Available Now!
Call 800-298-8924