B&W | GNCK4252 | Defender Locking Coupler with Outer Sleeve

The B&W GNCK4252 Defender Locking Gooseneck Coupler with Outer Sleeve delivers the perfect combination of security, durability, and smooth towing performance. Engineered for professional-grade hauling, this coupler fits standard 2-5/16″ gooseneck balls and features an integrated Defender locking system that provides maximum protection against theft and tampering.

The outer sleeve design ensures a snug, stable fit and smooth vertical adjustment for precise trailer leveling. Built from high-strength steel with a tough powder-coated finish, the GNCK4252 stands up to years of heavy use in all weather conditions. Whether for commercial fleets, agriculture, or personal towing, this B&W Defender Coupler gives you peace of mind and reliable performance on every haul.

Key Features:

• Fits 2-5/16″ gooseneck hitch balls

• Defender locking system enhances security and prevents unauthorized coupling

• Outer sleeve design allows vertical adjustment for a perfect towing setup

• Heavy-duty steel construction ensures long-term durability

• Powder-coated finish resists rust, wear, and corrosion

• Smooth latch mechanism for easy hookup and release

• Made in the USA | Limited Lifetime Warranty