Buy now, pay later with Learn More

Need Help?

We've got you covered!

Sales & Service Hours

Sales & Service Hours

Customer Service

  • Monday to Friday: 8am - 6pm EST
  • Saturday/Sunday: Closed


  • Monday to Saturday: 8am - midnight EST
  • Sunday: 9am - 10pm EST

B&W Defender Locking Gooseneck Coupler

Product Information
Our Price:
Made in the USA
Part #:


  • Designed for 4" round Gooseneck trailers
  • Lock your trailer when coupled or uncoupled
  • Automatic Latch
  • Cone Shaped Coupler for easy install
  • 25,000 lb. GTW / 7,500 lb. TW
  • Limited lifetime warranty
  • Made in the USA - Humboldt, KS

If you have a gooseneck hitch you could probably use a B&W Defender Locking Gooseneck Coupler. The Defender is unlike any gooseneck trailer coupler on the market today. With unrivaled ease of use and security features built into the coupler, the Defender keeps your property safe and ensures easier towing.

Constructed out of heavy-duty steel and can handle up to 25,000lbs gross trailer weight and 7,000lbs tongue weight. Fits any 4" round gooseneck. Also the Defender locking gooseneck coupler is cone shaped for easy install.

So if you want to protect your property? Look no further than B&W Defender locking gooseneck coupler. Get yours ordered today!

View Available Part Numbers For This Product Line


Limited Lifetime Warranty

Your B&W Defender Locking Gooseneck Coupler comes backed by a limited lifetime warranty against any possible defects in either materials or workmanship. If you have any questions or would like to submit a warranty claim, please contact us at 877-216-5446.


Installing the B&W Defender locking gooseneck coupler is simple with there step by step instructions. If you have any questions please let our amazing customer service a call at 877-216-5446

PDF Icon B&W GNC4250 Installation Instructions