Match the part number, measurements and connection points that apply to your trailer.
| Hub Face | Measure hub face to hub face. |
|---|---|
| Spring Center | Measure mounting centers and confirm perch configuration. |
| Capacity | Match the required axle rating. |
| Brakes | Confirm brake type and flange configuration. |
Dexter Part Number: K71-651-00
This Dexter Electric Over Hydraulic (EOH) Brake Actuator is a heavy-duty braking control unit designed for trailers equipped with hydraulic disc brake systems. It converts an in-cab electronic brake controller signal into precise hydraulic pressure for consistent, proportional braking.
With a maximum output of 1,600 PSI, solid-state electronics, and DOT-compliant operation, this actuator is commonly used on high-value, high-capacity trailers where braking performance, reliability, and control accuracy are critical.
This actuator is compatible with proportional brake controllers that support electric over hydraulic (EOH) operation.
| Yellow | Cold side of breakaway switch (hot when breakaway occurs) |
| Black | Positive connection to breakaway battery (charging circuit) |
| Blue | Output from in-cab brake controller |
| White | Ground |
Important: The yellow wire must be connected to the breakaway system for the actuator to function during a breakaway event.
This actuator requires a minimum 9 amp-hour (9Ah) breakaway battery to meet safety and regulatory requirements.
The actuator enters a low-power sleep mode when inactive. To re-activate the unit:
| Maximum Pressure | 1,600 PSI |
| Overall Dimensions | 11" L × 6" W × 7" H |
| Mounting Hole Spacing | 2-1/2" horizontal × 9-13/16" vertical (center-to-center) |
| Mounting Hole Diameter | 1/4" |
| Hydraulic Port | 3/8" female threaded fitting |
Selected from R&P customer feedback for Trailer Axle / Running Gear products and related trailer service.
“Got me the axle I needed right away with custom spring perch setting.”
“Had a trailer made to my needs.ken was able to get it done and at a price that was very acceptable.i have bought parts there for 2 other trailers and always in stock”
“Quality work. Staff is polite. Great job welding a project for me. Didn't even want to charge me, so I bought them a case of Corona. They were ecstatic. I ever need a welding or like that R&P Carriages is #1 !!!!!”
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