When your gooseneck trailer coupler crowds the cab or your truck bed setup demands a repositioned ball, the B&W GNXA4685 hitch extender gives you the clearance you need without swapping out your entire hitch system. Designed to work with B&W's proven 909 series gooseneck platform, this extender moves the ball position rearward so you get proper swing clearance between the trailer nose and the cab -- a critical concern for tightly loaded flatbeds, stock trailers, and equipment haulers.
The B&W 909 series is one of the most trusted gooseneck hitch families in the truck market, known for its clean under-bed installation and robust construction. The GNXA4685 extender is a purpose-built accessory that slots into this system, allowing you to shift the ball position without cutting new holes or reworking your bed liner. It is boxed and ready to install right out of the package.
This extender is especially useful for owners of short-bed pickups who experience cab contact or tight clearance when making sharp turns with a gooseneck trailer. It is also a practical solution when switching between trailers with different coupler geometries that benefit from a slightly offset ball position.
Engineered specifically for B&W's 909 series gooseneck hitch platform for a precise, no-modification fit.
Repositions the gooseneck ball rearward to increase the gap between the trailer nose and the truck cab on sharp turns.
Built to B&W's commercial-grade standards with the solid steel construction the 909 series is known for.
Comes boxed with all hardware needed for installation on a compatible 909 series gooseneck hitch base.
Short-bed truck owners are the most common buyers of gooseneck hitch extenders. When a standard gooseneck ball is centered in a 5.5- or 6-foot bed, the trailer nose can contact the cab during parking lot turns and backing maneuvers. Moving the ball rearward -- even a few inches -- dramatically increases the safe turning radius.
The 909 series gooseneck hitch from B&W Hitches uses an under-bed mounting system with a removable ball and safety chain loops. The GNXA4685 extender is designed to integrate with this platform's ball mounting interface, maintaining the same clean look and structural integrity as the base hitch assembly.
The GNXA4685 mounts to your existing 909 series gooseneck hitch base. No additional drilling or bed modification is required when your truck already has a 909 series hitch installed. The extender repositions the ball coupler point and is secured using the same fastener interface as the standard ball assembly. A torque wrench and basic hand tools are all that is needed for the swap.
This extender is designed for use with the B&W 909 series gooseneck hitch. If your truck is equipped with a different B&W gooseneck platform -- such as the Turnoverball or a non-909 under-bed system -- verify compatibility with B&W before ordering. The mounting interface on the 909 series is unique to that product family.
Inspect all mounting fasteners for proper torque before each towing season and after any hard towing session. Check the extender body for cracks, deformation, or corrosion, particularly at the ball mounting interface. B&W components are finished for corrosion resistance, but periodic inspection is good practice on any towing hardware.