Trailer Brakes & Electric Trailer Brakes: Brake Controller Options for Every Tow

Trailer brakes bring a towed trailer to a stop in coordination with the tow vehicle, most commonly through an electric drum brake system on caravans and box trailers, though heavier trailers may use hydraulic override or full air brake setups instead. Electric trailer brakes rely on a brake controller fitted inside the tow vehicle to send the correct signal at the right moment.

CBT Auto Parts stocks trailer brakes and brake controllers, including Redarc units, sitting within the same braking system parts range as Air Brake Components and Brake Chambers for heavier trailer setups. Controllers are matched to your trailer's brake type and tow vehicle wiring, with fast nationwide shipping.

Trailer Brake Parts

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FAQs

1. Do I legally need a brake controller for my trailer?

In most jurisdictions, yes, once a trailer's braked weight passes a set threshold, fitting a brake controller becomes a legal requirement rather than an optional extra.

2. What's the difference between time-based and proportional controllers?

A time-based controller applies a preset ramping power level, while a proportional controller measures actual deceleration and matches trailer braking force to it in real time.

3. Is a Redarc brake controller worth the extra cost?

A Redarc brake controller suits frequent towing well, offering smoother, more naturally balanced braking, though budget time-based units remain capable for occasional use.

4. What's the difference between a brake controller and a breakaway module?

A controller manages everyday trailer braking, while a trailer brake module in the breakaway sense applies the trailer's brakes automatically if it disconnects unexpectedly.

5. My trailer brakes work but feel uneven; what should I check first?

Check for one electric brake assembly not engaging correctly or a controller error reading; both commonly cause uneven trailer braking before any complete failure occurs.