The pulley redirects and stabilises the handbrake cables, ensuring smooth movement and correct tension when the lever is engaged. It helps maintain balanced application across both rear calipers, critical to holding the car securely on an incline or when parked for long periods.
If your handbrake feels inconsistent, fails to hold firmly, or shows uneven cable wear, the pulley may need replacing. Worn or seized pulleys can cause premature stretching of cables or poor handbrake performance.