Trailer Brake Controls

Match the controller to your trailer braking system (electric or electric-over-hydraulic) and to your vehicle's wiring and mounting space; consider proportional controllers for smoother automatic braking and time-delayed controllers for simpler setups or older vehicles

Check your vehicle’s tow package wiring (7-pin or 4-pin), available mounting locations, maximum trailer weight and brake type, and whether your tow vehicle has a brake-control output or requires an additional brake-control harness or battery connection

Trailer brake controllers are available across a broad range, with basic time-delayed units often in lower price tiers and proportional or multi-axle controllers costing more; shoppers can expect general pricing from budget options under $100 to higher-end models above that, with category averages around the low hundreds

Compare control type (proportional vs time-delayed), ease of installation, adjustable gain or sensitivity, boost/manual override function, compatibility with electric-over-hydraulic systems, display/readouts, and whether a backing plate or harness is included

Many controllers are designed for do-it-yourself installation using the vehicle’s existing wiring or a plug-in harness, but some setups require splicing power/ground or installing a brake-controller output module; consult your vehicle manual and manufacturer instructions and consider professional installation if unsure

Regularly inspect wiring connections and mounting hardware, keep the controller clean and dry, re-calibrate gain/sensitivity when changing trailer loads, and test trailer brakes on a safe road or parking area after installation or adjustment

Many controllers support electric-over-hydraulic systems, but you must verify the controller’s compatibility with EOH setups and follow any specific wiring or solenoid interface requirements outlined by the controller and trailer manufacturers