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
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Retail:$361.47
Our Price: $300.00
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Gooseneck Coupler
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Shipping Weight: 42 lbs
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B&W Defender Locking Gooseneck Coupler Inner Tube - Round - 2-5/16" Ball - 25,000 lbs Auto Latch BWGNC4250
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In Use/Installed

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. Call 800-298-8924 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. Guaranteed Lowest Price 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 (3)
  • Q & A (6)
  • Photos
  • Why etrailer?

B and W Gooseneck Coupler - BWGNC4250

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

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"
  • 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 Reviews

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

Average Customer Rating:  5.0 out of 5 stars   (3 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.

- BWGNC4250
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. 786904



- BWGNC4250
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". 411726



- BWGNC4250
by:

Cool...great hitch, hasn't gotten my trailer stolen, good quality 190610


3
3

Ask the Experts about this B and W Gooseneck Coupler

  • 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...
  • 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...
    view full answer...
  • 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...
  • 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...
    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...




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Info for this part was:

Written by:
Lindsey S
Expert Research:
Jameson C
Video Edited:
Jacob T
Installed by:
Randy B
Video by:
Zach D
Updated by:
Kristina F

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