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  1. Gooseneck Coupler
  2. B and W
  3. Round Tube
  4. Coupler with Inner Tube Only
  5. 25000 lbs GTW
  6. 2-5/16 Inch Gooseneck Ball
B&W Defender Locking Gooseneck Coupler Inner Tube - Round - 2-5/16" Ball - 25,000 lbs

B&W Defender Locking Gooseneck Coupler Inner Tube - Round - 2-5/16" Ball - 25,000 lbs

Item # BWGNC4250
Retail:$449.29
Our Price: $340.00
You Save: $109.29
Gooseneck Coupler
Shipping Weight: 42 lbs
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Pair this inner tube assembly with an existing outer tube for a gooseneck coupler that latches and locks automatically. Built-in lock can be engaged when trailer is coupled and when trailer is unattached. Oversize, cone-shaped funnel eases hookup. 1-800-940-8924 to order B and W gooseneck coupler part number BWGNC4250 or order online at etrailer.com. Free expert support on all B and W products. Great prices and Fastest Shipping for B&W Defender Locking Gooseneck Coupler Inner Tube - Round - 2-5/16" Ball - 25,000 lbs. Gooseneck Coupler reviews from real customers.
  • All Info
  • Reviews (18)
  • Q & A (0)
  • Photos

B and W Gooseneck Coupler - BWGNC4250

  • Round Tube
  • Coupler with Inner Tube Only
  • 25000 lbs GTW
  • 2-5/16 Inch Gooseneck Ball
  • Auto Latch
  • B and W
  • 7500 lbs TW

Pair this inner tube assembly with an existing outer tube for a gooseneck coupler that latches and locks automatically. Built-in lock can be engaged when trailer is coupled and when trailer is unattached. Oversize, cone-shaped funnel eases hookup.


Features:

  • Sturdy inner tube pairs with existing outer tube to create an adjustable gooseneck coupler for hooking your trailer up to your truck
  • Cone-shape funnel makes it easy to guide ball into socket
    • Coupler engages as long as the ball is within 2" of the socket
  • Automatic latching mechanism for super simple hookup
    • Pull handle out and rotate up to open coupler
    • Line hitch ball up with coupler and lower trailer - internal latch automatically engages around ball
  • Built-in lock provides excellent security
    • Mechanical shutter helps keep dirt and debris out of cylinder
    • 2 Keys included
  • Sturdy steel construction
    • Heavy wall tubing exceeds industry standards
  • Black powder coat finish is corrosion resistant
  • Made in the USA


Specs:

  • Ball size: 2-5/16"
  • Range of vertical adjustment (when used with outer tube): 11"
    • Base of coupler to lowest adjustment hole: 8-1/8"
    • Base of coupler to highest adjustment hole: 19-1/8"
  • Tube diameter: 4"
  • Weight capacity: 25,000 lbs
  • Vertical load limit: 7,500 lbs
  • Limited lifetime warranty


With the Defender gooseneck coupler from B&W, you get the best of both worlds. Not only does this coupler make hookup an absolute snap, but it also defends against trailer theft. The built-in lock can be engaged when your trailer is hooked up to your truck, thus preventing uncoupling. It can also be locked when your trailer is not hooked up, preventing would-be thieves from hooking your trailer up to their gooseneck ball.


B&W Defender Locking Gooseneck Coupler

To begin the process of hooking up your trailer, unlock the Defender. Line the hitch ball in your truck up with the coupler. Because the funnel on the Defender is larger than the average gooseneck coupler funnel, you don't have to be exact when lining your tow vehicle up with your trailer. Just make sure that the ball is within 2" of the coupler's socket.


B&W Defender Gooseneck Coupler Oversize Funnel

Once you have the ball lined up with the coupler, lower your trailer. The funnel will guide the ball into the socket, and the ball latch will engage automatically. You will know that the latch is engaged because the handle will rotate counterclockwise and retract against the coupler's housing. When you confirm that the Defender is properly latched around your hitch ball, simply push the lock cylinder in. When locked, the cylinder will be flush with the coupler's housing.



GNC4250 B and W Defender Locking Gooseneck Coupler Inner Tube - 25,000 lbs

Installation Details BWGNC4250 Installation instructions


California residents: click here


Customer Satisfaction Score:


Customer Reviews

B&W Defender Locking Gooseneck Coupler Inner Tube - Round - 2-5/16" Ball - 25,000 lbs - BWGNC4250

Average Customer Rating:  4.9 out of 5 stars   (18 Customer Reviews)

Pair this inner tube assembly with an existing outer tube for a gooseneck coupler that latches and locks automatically. Built-in lock can be engaged when trailer is coupled and when trailer is unattached. Oversize, cone-shaped funnel eases hookup.

by:

They did not have the one I needed, but were quick to have an alternative. Great communication, will continue ordering.



by:

Easy to order and was delivered very qu ickly!



by:

Great improvement in hookup



by:

Great coupler - generous sloped diameter allows you to be off by a couple inches and still seat in there fine. Love the locking feature.

Ed

5/31/2022

Everything is still great - works like a champ!



by:

We put these on every trailer we sell. Very easy to use and install.



by:

Always prompt service



by:

I got the hitch Ball/chain package and the Gooseneck hitch post, they were delayed a bit with "covid" problems but once shipped were 3 days early!!! GREAT, thru the process e-Trailer Tori and George were just awesome with contact and updating me all the time.
The BW hitch Ball is 10 times the product the factory Curt ball and chain hooks were is quality, fits tight in the receptacle and I am sure will quiet the "take off and stop" clunk not to mention ease of install and fit overall. I have not installed the gooseneck post yet but the quality is excellent and am looking forward to using it.



by:

installed in minutes. It has been on trouble free for a year now. I am so happy with how it performed i bought a second one for the stock trailer. My wife travels with the truck and trailers constantly. No more complaints about pinched fingers or stuck slide couplers and as far as hooking up." Close" is really" close enough".



by:

Cool...great hitch, hasn't gotten my trailer stolen, good quality



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Warren

2/14/2022

Great coupler, better than the Bulldog that came on my trailer.



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I have used etrailer a few times and am 100% satisfied with products and service. I had the pleasure of dealing with customer service on this order as part of my order was backorder. Communication was awesome throughout the process. Great to do business with.


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See what our Experts say about this B and W Gooseneck Coupler

  • Wall Thickness and Pin Hole Diameter of B and W Defender Locking Gooseneck Coupler Inner Tube
    I checked with B and W and the Defender Locking Gooseneck Coupler Inner Tube part # BWGNC4250 has a wall thickness of .318 inch and the pin diameter it would need to be used with is 7/8 inch. The lock doesn't have to be used either so you can connect to it and disconnect from it without having to use the lock.
    view full answer...
  • Replacement Coupler For A 1994 Featherlite Horse Trailer
    When it comes to replacing the coupler on your 1994 Featherlite Horse Trailer The B&W Defender Locking Gooseneck Coupler Inner Tube - Round - 2-5/16 inch Ball - 25,000 pounds # BWGNC4250 will work for you if the existing coupler on your trailer has a tube diameter of 4 inches. The coupler has a built-in lock feature that provides excellent security, and has a black powder coat finish which is corrosion resistant. It has a weight capacity of 25,000 pounds and a vertical load limit of 7,500...
    view full answer...
  • How Does the B and W Defender Gooseneck Hitch Install on a Trailer
    As long as you have an outer tube installed on your gooseneck trailer that is designed to fit an inner tube with a 4 inch diameter the # BWGNC4250 would install pretty easily on your trailer. If not, then you would want the # BWGNC4251 instead as this comes with the outer tube that would get welded to your trailer by a qualified welder. If you didn't want any adjustability with your gooseneck coupler you could always weld the # BWGNC4250 directly to your trailer. Also, the claim that...
    view full answer...
  • Gooseneck Coupler That Is Easiest To Attach To Gooseneck Hitch Ball
    There is one gooseneck coupler with a wide flange that is also the easiest to hook up to your gooseneck ball, which is the B&W Defender Locking Gooseneck Coupler. Not only is the coupler base a full 6 inches in diameter, it is also a funnel, as you can see by the accompanying photo. The funnel means you do not have to be right on top of your gooseneck hitch ball, it only needs to be within 2 inches of the ball to hook up. The coupler can be had with either the inner and outer tube, or...
    view full answer...
    Image 1 for
  • Is Popping in Gooseneck Coupler Normal
    Some noise is normal with a gooseneck coupler, even the # CG you have. There needs to be a bit of play so you can make turns, and so long as all your connections are tight, it isn't an issue. Try lubricating the hitch ball on a normal basis as well, which can help with some of the noise.
    view full answer...
  • Compatibility of B&W BWGNC4250 Defender Gooseneck Coupler with Featherlight Trailer
    The B&W # BWGNC4250 Defender Gooseneck Coupler isn't a trailer specific item. As long as the outer coupler tube on your gooseneck trailer will accept a 4 in diameter coupler, the B&W # BWGNC4250 would work well for you. The large funnel and auto-latching mechanism makes it easy to couple the trailer and its integrated lock provides theft deterrence. The coupler offers 11 inches of height adjustment. If you click the provided link, you can see a product demonstration video featuring the...
    view full answer...
  • Gooseneck Coupler Replacement that has 30k Capacity
    We have replacement gooseneck couplers that have a 30k capacity like the Bulldog BX1 part # BD1289050300 that you referenced but B and W only makes couplers that have a 25k capacity like the # BWGNC4250.
    view full answer...
  • Replacement Inner Tube For B&W Gooseneck With Lock Included
    I recommend the B&W Defender Locking Gooseneck Coupler Base Assembly, part # BWGNC4250 for your trailer. This is the inner tube with the base that will work with the outer tube. This inner tube has a built-in lock and has 2 keys included. The tube diameter is 4 inches and it has a weight capacity of 25,000-lbs.
    view full answer...
  • Replacement Inner Tube for Gooseneck Hitch in 2011 Chevrolet Silverado 3500 with 6-1/2-Foot Bed
    The linked page will show you both round and square gooseneck inner tubes. I measured two of the round tube parts, # BD0287610300 from Bulldog and part # BWGNC4250 from B&W, and both have an overall length of 28-1/4-inches and an outer diameter of 4-inches. Please let me know your gooseneck hitch brand, weight rating and tube shape. I will be glad to check all available items for one with your required length of more than 31-inches.
    view full answer...
  • Replacement Inner Gooseneck Coupler Tube for Gooseneck Trailer
    It looks like the B and W Defender part # BWGNC4250 potentially fits your gooseneck trailer. This has an outer diameter of 4 inches so if that would fit in the outer tube of your trailer it would work great.
    view full answer...
    Image 1 for Image 2 for
  • Replacement Inner Tube Recommendation for Bulldog Gooseneck Coupler that Uses Set Screws
    I believe what you are looking for is actually the part # BD0287690300. This coupler tube is 4-1/2 inches in overall diameter and is designed to have set screws secure it in place to the outer tube. I can't recommend the B and W you mentioned for that.
    view full answer...
  • Can You Replace the Spring on the Sleeve/Latch on a Gooseneck Trailer Coupler
    I would love to help but we don't really carry just universal trailer coupler repair parts nor do they even exist. I would need the exact make and model of coupler to confirm if there is a replacement but more often than not, they aren't available. I'd have to advise against jerry rigging the coupler so you'd be best off just replacing the inner tube with an option like the B&W Defender Locking Gooseneck Coupler Inner Tube part # BWGNC4250. If you can provide some info on your existing...
    view full answer...
  • Will Blaylock Coupler Lock Fit B&W Gooseneck Coupler
    The B&W gooseneck couplers come in 2 different setups; the Defender parts # BWGNC4250 and # BWGNC4251 as well as the Extend-A-Goose # BWTEXA4200. The Defender couplers have built-in locks and come with keys while the Extend-A-Goose is lockable if you install a padlock in the handle bracket (see attached photos). Because of this the design of the couplers won't fit with a standard coupler lock like the Blaylock # BLTL-50 you're looking at. If you have a different coupler please let me...
    view full answer...
    Image 1 for Image 2 for
  • Gooseneck Coupler That is Needed Longer Than 22 inches
    We do have some options available that are a bit longer than the Bulldog BX1 Gooseneck Coupler Inner Tube # BD1289050300. The Bulldog BX1 Gooseneck Coupler Inner Tube # BD1289020300 has the same diameter and hitch ball spec and it has an overall length of 28.5" which is 6.5" more than the part you were looking at. The only problem is that it is only rated for 25,000 lbs. If you are needing the 30,000-lb weight capacity rating then you can go with the Convert-A-Ball Multi-Cushioned Gooseneck...
    view full answer...
    Image 1 for
  • Locking Pin Compatible with BWGNC4250 Gooseneck Coupler
    The B&W Defender Locking Gooseneck Coupler Inner Tube - Round - 2-5/16" Ball - 25,000 lbs # BWGNC4250 would require an incredible lifting height of the trailer steadily straight up to release a trailer when locked at the coupler to the hitch ball. That is the only reason it doesn't come with the locking pin you referenced. The InfiniteRule Hitch Lock for Gen-Y Gooseneck Coupler w/ 4" Round Tube - Stainless Steel # 34065041 would be a great fit. It is a 3/4 inch diameter lock that has...
    view full answer...

Do you have a question about this Gooseneck Coupler?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Written by:
Lindsey S
Employee Jacob T
Video Edited:
Jacob T
Employee Kathleen M
Updated by:
Kathleen M
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Noah M
Updated by:
Noah M
Employee Randy B
Installed by:
Randy B
Employee Zach D
Video by:
Zach D

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