Cylinders that create or transfer hydraulic pressure.

Wheel cylinders and other hydraulic cylinders apply pressure to brake shoes or link to other brake components. Leaks can cause a soft pedal, fluid loss or uneven braking. Match cylinders by bore size and mounting points. Replace worn shoes and clean the backing plate when servicing drum brakes. After installation, bleed air from the system. Reliable cylinders support stable pressure at the pedal.