Parts for your 2013 Subaru Legacy-Brake wheel cylinders

Are brake wheel cylinders used on the 2013 Subaru Legacy (Liberty AU)?

For the 2013 Subaru Legacy (sold as Liberty in Australia, Legacy in New Zealand), brake-wheel-cylinders are not fitted or relevant to the service brakes. Technical references confirm this model runs four-wheel disc brakes with hydraulic calipers, not drum brakes with wheel cylinders.

Referenced technical sources include: Subaru Legacy/Liberty 2010–2014 Factory Service Manual (Brake/BR section), which specifies ventilated front and solid rear disc brakes with ABS, the Subaru Electronic Parts Catalogue (EPC) for BM/BR chassis showing front and rear calipers and no listing for rear wheel cylinders, and the 2013 Owner’s Manual brake specifications noting four-wheel disc brakes. Together, these point to no hydraulic wheel cylinders in the primary braking system.

What about the small “drum” inside the rear rotor? That’s the drum-in-hat parking brake. It uses small brake shoes operated by a cable, purely mechanical, so there are no hydraulic wheel cylinders involved there either. If someone’s chasing a leak or a soft pedal on a 2013 Legacy/Liberty, they should be looking at calipers, hoses, the master cylinder, or ABS modulator—not brake-wheel-cylinders.

For owners and technicians, the practical takeaway is that servicing the 2013 Legacy’s brakes centres on disc-brake components and the cable-operated park brake. Typical work includes replacing pads and rotors, overhauling or replacing calipers if they’re sticking or leaking, flushing brake fluid every 2 years or 40,000 km (whichever comes first), and adjusting or renewing the parking brake shoes and hardware when needed. If the rear rotor hat has a ridge or the park brake struggles to hold, inspect the park-brake shoes and the cable adjustment rather than hunting for a wheel cylinder that isn’t there.

• Subaru Factory Service Manual (2010–2014 Legacy/Liberty, BR section): four-wheel disc brakes, mechanical drum-in-hat parking brake
• Subaru Electronic Parts Catalogue (BM/BR): calipers listed, no wheel cylinders listed
• 2013 Owner’s Manual: brake spec lists disc brakes front and rear with ABS

Popular questions about 2013 Subaru Legacy brake-wheel-cylinders

Does a 2013 Subaru Legacy have brake wheel cylinders?
No. The 2013 Legacy/Liberty uses disc brakes at all four corners with hydraulic calipers. Wheel cylinders are a drum-brake part, and there are no hydraulic drums on this model. The only drum component is the park brake inside the rear rotor hat, which is cable-operated.

What should be serviced instead of wheel cylinders on a 2013 Legacy?
Focus on the disc-brake hardware: pads, rotors, calipers, slide pins, hoses, and fluid. Regular brake fluid flushes help prevent internal corrosion and sticking caliper pistons. Also inspect and adjust the parking brake shoes and cables if the handbrake travel is long or it won’t hold on a hill.

Why does the rear rotor look like a drum—does that mean there are wheel cylinders?
That “drum” is the hat section of the rotor housing the mechanical parking brake shoes. It doesn’t use hydraulic pressure, so there are no wheel cylinders. The service brake at the rear is a normal disc with a caliper, the inner drum is strictly for the handbrake.