Demco Hydraulic Boat Trailer Surge Actuator for Disc Brakes 20000lb with Electric Lockout Solenoid 2 5/16" Ball This actuator is installed by

This actuator is installed by drilling and mounting it directly onto your 3-inch wide trailer tongue

Grease Seal Inner Diameters of 1 1/4 inch Zinc Plated Cotter Key This Bearing Kit is used on 2200lb Trailer Axles

provides a leak proof seal

the solenoid is required if using disc brakes with a surge actuator to prevent locking of the brakes while reversing

One wire (either one) connects to tow vehicle reverse lights

Demco Hydraulic Boat Trailer Surge Actuator for Disc Brakes 20000lb with Electric Lockout Solenoid 2 5/16" Ball This actuator is installed byThis is a Demco Model DA20 trailer surge brake actuator for disc brakes, perfect for heavy duty tandem and triple axle boat trailers. The actuator has a 20,000lb towing capacity and 2,000 lb of tongue load, so you can be sure that this surge actuator coupler is prepared to keep you and the heavy loads that you are hauling safe! The Demco DA20 Actuator secures to a 2 5 16" tow ball with the eZ Latch coupler the safest in the industry. With this eZ