Product Description
The Demco 8705001 is a bolt-on hydraulic surge brake actuator with an integrated coupler, built for trailers with drum brakes. When the tow vehicle slows, the trailer pushes forward against the actuator, which pressurizes the master cylinder and applies the trailer's hydraulic brakes in proportion to how hard you're stopping. The coupler accepts a 2-inch ball and the actuator bolts onto a 3-inch-wide straight tongue.
This model does not have a reverse lockout. Mounting bolts are not included.
Compatibility
- Trailers with hydraulic drum brakes
- 3-inch-wide straight tongue (bolt-on)
- 2-inch hitch ball
Measure your trailer tongue and confirm your brake type before ordering. Contact us if you're not sure which actuator you need.
Specifications
- Manufacturer: Demco
- Part number: 8705001
- Brake type: Hydraulic drum
- Gross trailer weight rating: 7,000 lbs
- Tongue weight: 700 lbs
- Ball size: 2 inch
- Tongue width: 3 inches
- Mounting: Bolt-on (two 1/2 x 4-1/2-inch bolts required)
- Reverse lockout: None
- Material / finish: Steel, plated
- Made in: USA
- Warranty: Demco lists a limited 1-year warranty
Features
- Diaphragm in the master cylinder cap keeps the system fully enclosed
- Raised fill plate helps keep contaminants out when the cap is removed
- Tie loops on the cap allow it to be tethered with a tamper-evident seal
- Bellows boot on the pushrod for added protection from moisture and dirt
- Color-coded decal on the emergency lever shows at a glance whether the brakes are on or off
- Integrated shock dampening
- Glass-reinforced nylon master cylinder that won't rust or corrode
Helpful Links
Shipping & Availability
In stock and ready to ship.
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