CURT Echo brake controllers share smartphone-based adjustment, but the Mobile, Under-Dash and In-Line versions mount in different places and use different vehicle connections. Choose the controller by how it attaches to the tow vehicle and the trailer brake system. The accessories below are separate replacement or installation parts, not interchangeable controller bodies.
See the matching products
Select a photo to view its corresponding NewRVParts product. Each manufacturer part number identifies a separate controller, assembly or replacement component.
51180 — CURT Echo Mobile Bluetooth Brake ControllerPortable controller plugs between vehicle and trailer 7-way connectors
51190 — CURT Echo Under-Dash Bluetooth Brake ControllerCab-mounted controller uses a brake-control wiring connection
51200 — CURT Echo In-Line Bluetooth Brake ControllerRear-mounted controller plugs behind a suitable USCAR 7-way socket
51189 — CURT Echo Wireless Manual Brake Override ButtonOptional wireless override used with the Echo app
51186 — CURT Echo Mobile Replacement Retaining StrapReplacement strap for Mobile 51180 only
56475 — CURT 24-inch USCAR Wiring ExtensionExtra reach for a matching Echo In-Line USCAR connection
Which Echo controller fits your setup?
| CURT part | Installation position | Brake capacity | Connection |
|---|---|---|---|
| 51180 | Mobile, portable between 7-way connectors | 1–2 trailer axles (2–4 electric brakes) | Existing vehicle 7-way RV socket and trailer 7-way plug |
| 51190 | Under-Dash, inside the cab | 1–4 trailer axles (2–8 electric brakes) | Compatible vehicle brake-control plug or properly installed wiring |
| 51200 | In-Line, concealed near the rear 7-way | 1–4 trailer axles (2–8 electric brakes) | Existing USCAR-style factory harness behind the 7-way socket |
Replacement and installation accessories
| CURT part | Component | Use with |
|---|---|---|
| 51189 | Wireless manual override button | Echo compatible systems; requires app connection and setup |
| 51186 | Rubber 7-way socket-lid retaining strap | Echo Mobile 51180 specifically; not the Under-Dash or In-Line unit |
| 56475 | 24-inch USCAR-to-USCAR extension harness | Echo In-Line 51200 where a compatible factory connection needs more reach |
| 51180 factory mounting | Integrated retention tab and strap | A loose Mobile plug should be checked for correct 7-way socket fit |
| 51190 battery connection | 12V supply, chassis ground, brake output and brake-light signal | The maker's diagram calls for suitable 10-gauge wiring and a 30A breaker when hardwired |
| 51200 factory loom | In-line USCAR T-harness, module and mounting hardware | Does not plug into the exterior trailer plug in the same way as 51180 |
| App and manual override | Bluetooth Echo control and trailer profiles | If wireless connection is lost the controller uses the most recently programmed settings |
Original manufacturer diagrams
The factory drawings identify the actual wiring or connections for the specified products, rather than a substitute diagram for a similar component.
CURT Echo In-Line 51200 original USCAR loom and module wiring diagram
Open the original PDF in your device's viewer to read its terminal labels and service instructions.
CURT Echo Under-Dash 51190 original power/brake wiring diagram
Open the original PDF in your device's viewer to read its terminal labels and service instructions.