Turnoverball Center Box

Features:

• Compatible with 2011–2018 GM 2500HD/3500HD
• Designed for 6.6L Duramax diesel trucks
• Pairs with B&W GNRM1016 mounting kit
• 30,000 lb towing capacity for heavy loads
• Installs beneath the bed for clean appearance
• No welding or bed removal required
• Uses existing frame holes for easy install
• Only a 4-inch bed hole is needed
• Flip-over ball design for full bed access
• Made in the USA using durable steel
• Ideal for gooseneck towing applications
• Works with included safety chain hookups

Take Your Towing Setup To The Next Level

When it comes to hauling big trailers, you need gear that’s built to keep up, and the B&W GNRC912 Turnoverball Center Box does exactly that. This is the heart of B&W’s Turnoverball system, delivering serious towing strength without sacrificing your truck bed’s everyday functionality. With a 30,000 lb capacity, it's built to handle gooseneck trailers, toy haulers, livestock rigs, and more without breaking a sweat. What makes it even better is how cleanly it fits beneath the bed, giving you a flat surface when the ball is flipped over and stored. No need to remove the bed or weld anything, and the install uses factory frame holes, making the process straightforward. It’s a perfect match for 2011-2018 Silverado and Sierra 2500HD and 3500HD models with the 6.6L Duramax, so you know it’s built for the kind of trucks that actually get work done. Whether you're hauling for business or adventure, this center box makes sure your truck stays ready for both.

Built To Match Your GM Duramax Like A Glove

The B&W GNRC912 Turnoverball Center Box is designed to work seamlessly with the GNRM1016 mounting kit, forming a complete gooseneck hitch system for GM Silverado and Sierra 2500HD and 3500HD models from 2011 through 2018 with the 6.6L Duramax engine. It installs directly beneath the bed and requires just a 4-inch hole for the ball and four small holes for the included safety chain hookups. Because it uses pre-existing holes in the truck’s frame, there’s no need for welding or additional fabrication. This not only preserves your truck’s structural integrity but also makes the install cleaner and quicker. The Turnoverball design lets you store the ball upside-down in the socket when not in use, keeping the bed level and fully usable. Made from high-strength steel and backed by B&W’s reputation for durability, this center box delivers dependable performance mile after mile. Whether you're building a new towing setup or upgrading an existing one, this part is built to handle real-world demands with ease.

Fitment: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Center box only, mounting kit sold separately
• Designed to work with B&W GNRM1016 mounting kit
• Compatible with 2011-2018 GM Silverado and Sierra 2500HD/3500HD
• Fits trucks equipped with the 6.6L Duramax diesel engine
• Requires a 4-inch hole in the truck bed for ball access
• Also requires four small holes for safety chain hookups
• Installs under the bed without any welding or bed removal
• Uses existing frame holes, no drilling into the frame needed
• Intended for use with factory-installed truck beds only
• Gooseneck ball stores inside receiver when not in use
• Made in the USA and built from heavy-duty steel
• Installation should be done with proper tools and safety measures