Defender Locking Gooseneck Coupler
Defender Locking Gooseneck Coupler is backordered and will ship as soon as it is back in stock.
Confirm vehicle fitment
Confirm vehicle fitment
Confirm fitment before ordering. Match the year, make, model, trim, engine, drivetrain and selected options shown on this page. If any detail is unclear, search your exact vehicle or contact us before checkout.
Shipping expectations
Shipping expectations
Availability and processing time can vary by manufacturer. Available shipping choices and charges appear at checkout. Tracking is emailed after shipment. Oversized, special-order and supplier-shipped items can require additional processing time.
Returns and cancellations
Returns and cancellations
Please review eligibility before purchase. Installed, used, electronic, custom, special-order and clearance items may have return restrictions. Contact us promptly if you need to change or cancel an order.
What’s included
What’s included
The product description and selected variant determine what is included. Items shown in lifestyle or installation photos are not included unless they are specifically listed in the description.
Defender Locking Gooseneck Coupler is backordered and will ship as soon as it is back in stock.
Buy with confidence
Verify fitment, selected options, availability and included components before checkout. Secure payment options and order confirmation are provided at checkout.
Description
Description
Meet the B&W Trailer Hitches Defender Locking Gooseneck Coupler (GNC4250)—a next-level upgrade that makes gooseneck towing more secure. We reinvented the coupler with built-in security features and unmatched ease of use, so you can hook up confidently and hit the road sooner.
- The Defender’s integrated push-button keyed lock helps protect your investment with a powerful theft deterrent.
- Lock your trailer while coupled or uncoupled, giving you added peace of mind whether you’re parked at home, on the jobsite, or at a campground.
- Hookup is effortless thanks to the automatic latch system—simply line up the ball, lower the trailer, and it locks into place. No extra steps. No hassle.
- The cone-shaped coupler design also makes alignment easy, helping reduce frustration when connecting.
Upgrade your gooseneck with the Defender and enjoy secure, smooth, and reliable towing every trip.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Product features
Use this section to highlight specific product features to your customers.
Product comparison grid
Add content here to explain a bit about the range of products on offer and which ones may be most suitable for your customers.


