Dexter Marine Products K99-Z85-20 Model 850 Disc Brake Actuator 8500 lb

The Dexter Model 850 disc brake surge actuator is designed for boat and utility trailers requiring reliable hydraulic braking performance. This bolt-on actuator features the innovative Drop-N-Go latch mechanism that automatically locks when lowered onto the hitch ball, providing secure coupling and convenient operation.

Key Features:

• Rated capacity: 8,500 lbs gross trailer weight (GTW)
• Maximum tongue weight: 850 lbs
• Drop-N-Go quick lock mechanism automatically secures to hitch ball
• Fits standard 2-inch trailer hitch balls
• Bolt-on design mounts to 3-inch wide trailer tongues
• Disc brake compatible hydraulic master cylinder
• Built-in dampening shock absorber for smooth braking

This surge brake actuator works automatically by sensing the trailer's forward push against the tow vehicle during deceleration, telescoping together to apply hydraulic pressure to the disc brakes. The system synchronizes trailer braking with the tow vehicle's brakes without requiring electrical connections. Replaces Tie Down Engineering part #70523 and previous Dexter part K99-285-20.