Electric Brake Booster Pump Assembly

Why you need it

This component supplies high hydraulic pressure for the master cylinder in Toyota/Lexus electro-hydraulic systems. It reduces pedal effort and lets ABS, EBD, and stability control react instantly. Replace it if the old unit runs constantly, gets loud, shows leaks, or triggers warning lamps—restoring safe, confident braking.

How it works ⚙️

An electric motor drives a precision pump that charges an accumulator. The control module monitors a pressure sensor and cycles the motor to keep pressure within spec. Check valves hold stored pressure, giving immediate assist even at idle or with engine off. Vibration-damping mounts keep operation quiet and smooth.

What if it fails ⚠️

Symptoms: hard pedal, longer stopping distance, continuous buzzing, fluid seepage, and ABS/VSC/BRAKE lights. The system may set low-pressure codes and reduce or disable assist, leaving only manual braking—unsafe in emergencies and tough in stop‑and‑go traffic.

Install and bleed tips

Depressurize the old unit, cap lines, swap seals, and torque fittings. Fill with clean DOT 3 or DOT 4. Perform scan-tool guided bleeding and accumulator charge, then road test for quiet cycling and a firm, consistent pedal.

Why this choice ✅

OEM-grade motor and seals, corrosion-resistant housing, exact-fit ports and connector, quick prime, and low noise. A reliable way to restore factory pedal feel, ABS performance, and overall braking safety.