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B&W Hitches GNRK1121 Turnoverball Gooseneck Hitch Kit -- Universal Under-Bed Installation

B&W Hitches GNRK1121 Turnoverball Gooseneck Hitch Kit with under-bed mounting hardware and removable ball assembly for pickup trucks
 
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: $599.00
Part Number: GNRK1121
Manufacturer: B&W Hitches

Quantity in Stock :60

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B&W Hitches 30,000 lb GTW Turnoverball Series B&W Hitches GNRK1121 Turnoverball Gooseneck Hitch Kit

Pull serious weight without sacrificing your truck bed. The B&W Turnoverball GNRK1121 installs completely underneath the bed floor, leaving a clean, flat surface when the ball is flipped down or removed entirely. When you need to tow a gooseneck trailer -- livestock, flatbed, equipment, or fifth-wheel with a gooseneck adapter -- flip the ball up, lock it in, and go. No bulky above-bed rails, no permanent hardware cluttering your hauling space.

The Cleanest Gooseneck Setup for Your Pickup Truck

B&W Hitches has built the Turnoverball line around a single idea: your truck bed should look like a truck bed, not a towing platform. The GNRK1121 is a complete under-bed gooseneck hitch kit that includes the hitch receiver frame, the pivoting ball assembly, and the vehicle-specific mounting hardware needed for a solid, no-drill-through-the-bed installation on compatible trucks.

The 2-5/16 inch gooseneck ball flips down flush with the bed floor when not in use, covered by a trim plug that blends into the bed surface. When you're ready to tow, remove the plug, flip the ball up, and lock it in place with the ergonomic hand-operated handle -- no tools required at the ball itself. The entire ball assembly can also be fully removed and stored, leaving only a covered hole in the bed.

Turnoverball Design

Ball pivots below bed level when not towing. Flip up and lock in seconds -- no tools needed at the ball. Bed plug included for a clean look when stowed.

30,000 lb GTW Rated

Engineered for heavy-duty gooseneck use. Rated for up to 30,000 lb gross trailer weight and 7,500 lb tongue weight on qualifying trucks.

Complete Kit Included

Ships as a full installation kit -- under-bed frame, ball assembly, mounting brackets, and all required hardware. Truck-specific fit for proper load transfer.

USA Manufactured

Built in Humboldt, Kansas. B&W uses domestic steel and in-house manufacturing for consistent weld quality and dimensional accuracy on every hitch.

What Is the B&W Turnoverball Series?

The Turnoverball is B&W's flagship under-bed gooseneck hitch line and has been the benchmark for clean gooseneck installations for decades. Unlike above-bed gooseneck systems that use a fixed ball and visible frame rails across the bed, the Turnoverball routes all structural load directly through purpose-built under-bed mounting points -- typically the frame rails and cross members of the truck -- for maximum strength with zero above-bed obstruction.

GNRK1121 is a truck-specific kit in the Turnoverball lineup. The "GN" prefix denotes a gooseneck configuration, and the kit number (RK1121) identifies the specific vehicle application and hardware package. Always confirm your truck's year, make, model, cab, and bed length against B&W's fit guide before ordering, as different kit numbers serve different truck configurations even within the same model year.

Gooseneck + Fifth Wheel in One: Pair this hitch with the B&W Companion or Turnoverball-compatible fifth wheel adapter to convert between gooseneck and fifth-wheel towing without removing the under-bed hitch. The Turnoverball ball socket is compatible with B&W's OEM-style fifth wheel adapters for Ram, Ford, and GM trucks.

Installation Overview

The GNRK1121 is designed for a clean, professional installation that does not require cutting holes in the truck frame or welding. The kit uses the truck's existing frame and bed mounting locations. General installation steps include:

  • Remove the truck bed (typically 8 bolts on most full-size pickups) to access the frame rails
  • Bolt the under-bed hitch frame to the truck frame rails using the provided vehicle-specific brackets and hardware
  • Reinstall the bed -- the ball housing passes through a single hole in the bed floor (template included)
  • Install the ball assembly and locking handle from above the bed
  • Torque all fasteners to specification and confirm ball locks securely in both the up and down positions

Bed removal is the most labor-intensive part of the job. With a helper and basic hand tools, most experienced DIYers complete the installation in 3-5 hours. Professional installation is available at B&W-authorized dealers.

Bed Liner Compatibility: Drop-in plastic bed liners will need to be trimmed or have a hole cut around the ball location. Spray-in bed liners should be masked before liner application or trimmed after installation. B&W provides a bed template with the kit to locate the hole accurately.

Compatible Trailer Types

The 2-5/16 inch ball and standard gooseneck coupler interface means this hitch works with:

  • Gooseneck livestock and stock trailers
  • Gooseneck flatbed and equipment trailers
  • Gooseneck car haulers
  • Fifth-wheel trailers when used with a gooseneck-to-fifth-wheel adapter (sold separately)
  • Any trailer with a standard 2-5/16 inch gooseneck coupler
Maintenance Tips: Periodically lubricate the ball pivot mechanism and locking handle with a light grease or white lithium spray. Inspect the ball socket and locking pin for wear before each heavy tow. Keep the bed plug seated when not towing to prevent debris from entering the ball housing. Check all under-bed fastener torque annually or after extended heavy use.
Frequently Paired Accessories: B&W Turnoverball Gooseneck Ball (replacement/spare, 2-5/16 inch), B&W Companion OEM 5th Wheel Hitch for Ram/Ford/GM (uses same mounting base), B&W Safety Chain Anchor Kit (GNXA2061), and trailer wiring adapters for 7-pin RV blade connections.

Product Specifications

ManufacturerB&W Trailer Hitches
Part NumberGNRK1121
UPC843233009989
Product SeriesTurnoverball Gooseneck
Hitch TypeUnder-bed gooseneck, removable Turnoverball
Ball Size2-5/16 inch gooseneck ball
Country of ManufactureUSA (Humboldt, Kansas)

Weight and Dimensions (Shipping)

Shipping Weight85.5 lbs
Package Length45.0 inches
Package Width9.0 inches
Package Height5.0 inches

Towing Capacity Ratings

Gross Trailer Weight (GTW)30,000 lbs (truck-dependent)
Tongue Weight (TW)7,500 lbs (truck-dependent)
Rating BasisLesser of hitch rating or truck GVWR/tow rating

Ball and Coupler Interface

Ball Diameter2-5/16 inch
Ball StyleTurnoverball (pivot-and-lock, stows below bed floor)
Ball MaterialHeat-treated steel with corrosion-resistant finish
Coupler CompatibilityStandard 2-5/16 inch gooseneck couplers
Ball ActuationTool-free flip-up handle with positive locking mechanism

Kit Contents (Typical Turnoverball RK Kit)

Under-Bed Hitch FrameIncluded
Turnoverball AssemblyIncluded
Vehicle-Specific Mounting BracketsIncluded
Hardware (Bolts, Nuts, Washers)Included
Bed Hole TemplateIncluded
Bed Plug (for stowed position)Included
Fifth Wheel AdapterNOT included -- sold separately
Safety ChainsNOT included -- sold separately
Wiring HarnessNOT included -- sold separately
Important Information -- Read Before Ordering and Installing
  • Confirm exact truck fitment (year, make, model, cab style, bed length, diesel vs. gas if applicable) against B&W's official application guide. The GNRK1121 kit number is application-specific -- ordering the wrong kit will result in incorrect hardware and fitment issues.
  • The towing capacity of this hitch (30,000 lb GTW / 7,500 lb TW) is a maximum rating. Your actual tow capacity is always limited by your truck's GVWR, GCWR, axle ratings, and manufacturer tow rating -- whichever is lowest.
  • Bed removal is required for installation. This is not a tailgate-accessible install. Plan for at least 3-5 hours with a helper and verify you have access to the necessary torque specifications before starting.
  • This kit does NOT include a fifth-wheel hitch adapter. To tow a fifth-wheel trailer, you must purchase a compatible gooseneck-to-fifth-wheel adapter separately.
  • Do NOT exceed the tongue weight rating. Overloading the tongue can cause frame damage, loss of vehicle control, and voiding of warranty.
  • Inspect the locking mechanism and all under-bed fasteners before each towing use. A ball that is not fully locked is a serious safety hazard.
  • This product ships at 85.5 lbs. Liftgate service or freight delivery may be required. Inspect packaging for damage before signing for delivery.


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