Parts for your 2017 Subaru Forester-Brake wheel cylinders

2017 Subaru Forester brake wheel cylinders — are they used?

Short answer: no, a 2017 Subaru Forester doesn’t use brake wheel cylinders. Technical sources confirm the SJ-series Forester (model year 2017) runs four-wheel disc brakes with hydraulic calipers. Wheel cylinders are a drum-brake part, and there are no hydraulic drum brakes on this model.

References checked to reach this call include the Subaru Forester SJ (2017) Workshop/Service Manual for the brake system, the MY17 Forester specifications from Subaru for AU/NZ, the Subaru Electronic Parts Catalogue (EPC) for 2017 Forester, and common parts catalogues from reputable aftermarket suppliers. These all list front ventilated discs and rear solid discs, plus a “drum-in-hat” parking brake inside the rear rotor. That parking brake uses mechanical shoes and a cable — no hydraulics, so no wheel cylinders there either.

• Service brakes: front and rear disc brakes with calipers and pistons (not wheel cylinders).
• Parking brake: drum-in-hat inside rear rotors, mechanically actuated, no hydraulic wheel cylinders.

Why that matters for maintenance: if there’s brake fluid around a rear wheel on a 2017 Forester, the usual suspects are a leaking rear caliper, a banjo bolt or hose, or a corroded hard line — not a wheel cylinder. Likewise, a soft pedal won’t be caused by a failed wheel cylinder on this car. The right approach is to inspect calipers, pads, rotors, hoses, and lines, and to keep up with brake fluid changes (typically every two years) to prevent internal corrosion and sticking caliper slides.

Owners and workshops should also adjust and inspect the parking brake shoes inside the rear discs during servicing, but that job is separate from the hydraulic braking system and doesn’t involve any wheel-cylinder replacement.

Technical sources consulted:

• Subaru Forester SJ (2017) Workshop/Service Manual — Brake System
• Subaru AU/NZ MY17 Forester specifications (brakes: disc front and rear)
• Subaru Electronic Parts Catalogue (2017 Forester): calipers listed, no wheel-cylinder part numbers
• Aftermarket catalogues (e.g., Bendix/DBA, Repco/RockAuto) list pads, rotors, and calipers — no wheel cylinders for 2017 Forester

Popular questions

Does a 2017 Subaru Forester have brake wheel cylinders?
No. It has four-wheel disc brakes that use calipers with pistons. The only “drum” on the car is the drum-in-hat parking brake inside the rear rotors, which is cable-operated and doesn’t use hydraulic wheel cylinders.

What should be checked if there’s brake fluid around a rear wheel on a 2017 Forester?
Look at the rear brake caliper for leaks around the piston seal or banjo bolt, inspect the flex hose and hard line, and check the bleeder screw. The parking brake hardware won’t leak fluid because it isn’t hydraulic.

What brake maintenance is recommended for a 2017 Forester?
Replace brake fluid about every two years, inspect pads/rotors each service, clean and lubricate caliper slide pins, and check/adjust the rear parking-brake shoes inside the rotors. None of these tasks involve wheel cylinders on this model.