STC3129 - ABS Modulator

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ABS Modulator from the four-wheel anti-lock braking hydraulic circuit. The modulator sits between the master cylinder and the wheel brake circuits. On a signal from the ABS electro nic control unit its solenoid valves modulate hydraulic pressure to the channel of a wheel that is about to lock, releasing and reapplying pressure to keep the wheel rotating under braking. The brake hydraulic system must be bled after fitting. Show more