The 2018 Chevrolet Silverado 3500HD CC equipped with the Hydrabed refers to a heavy-duty pickup truck model designed by Chevrolet. The term "Hydrabed" typically refers to a hydraulic flatbed system that's commonly used for loading and unloading heavy equipment, tools, or cargo. It's a specialized feature that enhances the utility and versatility of the truck for various work-related tasks.

The key features and specifications of the 2018 Chevrolet Silverado 3500HD CC with the Hydrabed could include:

1. Engine Options: The 2018 Silverado 3500HD CC might be available with multiple engine options, including gasoline and diesel engines. The specific engine options can impact the truck's towing capacity, power output, and fuel efficiency.
2. Towing Capacity: This truck is designed for heavy-duty towing, making it suitable for hauling trailers, RVs, boats, and other large loads. The exact towing capacity will depend on the engine, drivetrain, and optional towing packages.
3. Hydraulic Flatbed (Hydrabed): The Hydrabed system is a hydraulic flatbed that can be raised and lowered using hydraulic mechanisms. This makes it easier to load and unload heavy items onto the flatbed without the need for manual lifting. The flatbed can be positioned at various angles, making it versatile for different types of cargo.
4. Single Cab: The Single Cab configuration offers seating for three passengers, typically with front bench seats or optional bucket seats. 
5. Interior and Technology: The interior of the 2018 Silverado 3500HD CC might include various comfort and technology features such as infotainment systems, touchscreen displays, connectivity options, and safety features.
6. Payload Capacity: In addition to towing capacity, the truck's payload capacity (the weight it can carry in the bed) is an important factor to consider, especially when using the Hydrabed for hauling heavy equipment or materials.
7. Drivetrain Options: The truck is available with four-wheel drive (4WD) allowing you to choose the drivetrain that best suits your needs, whether it's for off-road capabilities or improved traction.
8. Transmission: The truck might be equipped with an automatic transmission designed to handle the demands of heavy towing and hauling.