Dexter K99-066-20 Model 66 Disc Brake Surge Actuator 6,600 lb Drop N Go

The Dexter K99-066-20 is a hydraulic surge brake actuator (surge coupler) for trailers with disc brakes. Also known as the DX6.6 or Model 66 actuator, it is rated for up to 6,600 lbs gross trailer weight. When the trailer pushes against the tow vehicle, the actuator applies force to the master cylinder. That sends hydraulic pressure to the trailer brakes.

Key Features:

• Drop N Go latch: the coupler latches automatically onto the hitch ball when it is lowered onto it
• Ball size: couples to a 2 inch hitch ball (hitch ball not included)
• Capacity: 6,600 lbs, with a maximum tongue weight of 660 lbs
• Mounting: bolt-on design for a 3 inch trailer frame
• Brake lockout: solenoid included, with the solenoid plumbing built into the master cylinder
• Master cylinder: aluminum
• Maintenance: roller pin grease fittings
• Ball clamp: cast steel, locked by a safety pin rather than the latch handle
• Breakaway: PVC-coated coiled E-stop cable
• Finish: zinc

A solid choice for boat trailers and other trailers with disc brakes that need a dependable surge actuator.