Dexter 099-075-00 Trailer Surge Brake Actuator, Bolt-On Drum Mount, Zinc Plated, 14.5 Inch

The Dexter 099-075-00 is a bolt-on surge brake actuator built for drum brake trailer systems. It mounts on top of the trailer tongue and uses the trailer's forward momentum during braking to apply hydraulic pressure to the drum brakes, giving the trailer its own stopping power that works in sync with the tow vehicle. The housing is zinc plated for corrosion resistance in the wet, road-spray environment trailer tongues are exposed to.

This actuator measures 14.5 inches long, with its mounting holes positioned 1 inch down from the top of the housing, matching the standard bolt-on coupler footprint used across Dexter's DX line of surge actuators. Per Dexter's part numbering system, the 099-075-00 is built with no outer member installed, so it ships as the actuator body itself rather than as an assembly that includes a weld-on or bolt-on coupler housing extension.

Use this actuator when replacing a worn or leaking surge brake unit on a drum-brake trailer, or when building out a trailer braking system that calls for a bolt-on, top-mount surge actuator of this length and hole spacing.

Specifications

• Brand: Dexter
• Manufacturer Part Number: 099-075-00
• Mount Type: Bolt On
• Brake Type: Drum
• Finish: Zinc Plated
• Length: 14.5 inches
• Mounting Hole Position: 1 inch down from the top of the housing
• Outer Member: None (no outer member installed)
• Weight: 14.3 pounds
• Category: Trailer Brake Actuators

Frequently Asked Questions

What is the Dexter 099-075-00 used for? It is a bolt-on surge brake actuator that mounts on a trailer tongue and applies hydraulic pressure to drum brakes when the trailer pushes forward against the tow vehicle during braking.

How long is the 099-075-00 actuator? The housing measures 14.5 inches long.

Where are the mounting holes located on this actuator? The mounting holes sit 1 inch down from the top of the 099-075-00 housing.

Does the Dexter 099-075-00 come with a coupler housing extension? No. Per Dexter's part numbering, the 099-075-00 is built with no outer member, meaning it ships as the actuator body only, without a weld-on or bolt-on coupler housing extension.

Is this actuator for drum brakes or disc brakes? The Dexter 099-075-00 is a drum brake surge actuator, not a disc brake unit.

How does the 099-075-00 mount to the trailer tongue? It is a bolt-on style actuator, meaning it attaches with bolts through the housing rather than being welded to the tongue.

What finish does the Dexter 099-075-00 have? The housing is zinc plated for corrosion resistance.

How much does the 099-075-00 weigh? It weighs 14.3 pounds.

Will the 099-075-00 work with a straight or A-frame tongue? As a bolt-on, top-mount surge actuator, the 099-075-00 is designed to install on top of a trailer tongue; consult your coupler and tongue dimensions to confirm the bolt pattern and hole spacing match this 14.5 inch, 1-inch-down housing.

Can the 099-075-00 be paired with a separate coupler housing? Since this part has no outer member installed, it is intended to be used as the base actuator, with the outer coupler housing sourced or matched separately if your trailer setup requires one.

What category of part is the Dexter 099-075-00? It is classified as a trailer brake actuator, specifically a surge-type actuator for drum brake trailers.