Dexter Marine Products K99-Z85-00 Model 80 Hydraulic Surge Brake Actuator for Drum Brakes

The Dexter Marine Products K99-Z85-00 is a Model 80 hydraulic surge brake actuator designed specifically for trailer drum brake applications. This actuator provides automatic, synchronized braking by utilizing the natural "surge" or push of the trailer toward the tow vehicle during deceleration, eliminating the need for electric brake controllers.

Key Features:

• Model 80 surge actuator for 8,000 lb capacity trailer systems
• Designed for hydraulic drum brake applications
• Automatic brake synchronization with tow vehicle during deceleration
• Built-in dampening shock absorber to retard telescoping action
• Larger fill cap design for easy brake fluid maintenance
• Corrosion-resistant rollers and bushings for marine environments
• Accepts standard 2-inch trailer hitch balls
• Complete actuator assembly ready to install

When the trailer pushes against the towing vehicle during braking, the actuator telescopes together and applies force to its master cylinder, supplying hydraulic pressure directly to the trailer's drum brakes. This surge actuation system provides smooth, proportional braking that automatically matches the intensity of the tow vehicle's braking. The corrosion-resistant construction makes this actuator ideal for marine and boat trailer applications where exposure to water and salt is common.