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Parts for your 2016 Subaru Forester-Cluth slave cylinder
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Frenkit Clutch Slave Cylinder Kit D: 20.6 (Replaces K978S K1498S) - 520901
2016 Subaru Forester clutch slave cylinder (cluth-slave-cylinder)
Technical sources confirm the 2016 Subaru Forester uses a clutch slave cylinder on models fitted with the 6‑speed manual transmission. The Subaru SJ Forester Service Manual (CL – Clutch System, 2016MY) and Subaru’s Technical Information System outline a hydraulic clutch circuit with a bellhousing‑mounted slave cylinder and a bleed procedure for MT variants. The Subaru genuine parts catalogue (FAST) also lists a slave cylinder for the 2016 Forester manual, while Lineartronic CVT models do not have a manual clutch and therefore no slave cylinder. Major aftermarket catalogues (Aisin and Exedy) list direct‑fit slave cylinders for the 2014–2018 SJ Forester manual range.
For owners of a manual 2016 Forester, the clutch slave cylinder is a small hydraulic actuator that turns pedal effort into movement at the clutch fork to disengage the clutch. It’s fed by brake fluid from the clutch master cylinder, and when everything’s healthy, it delivers a consistent pedal and smooth gear changes. Because it works on brake fluid, it prefers clean, fresh fluid and zero air in the system.
As part of routine servicing, it’s smart to check the slave cylinder for weeping seals, dampness on the bellhousing, or paint‑stained drips under the gearbox. A spongy pedal, difficulty selecting gears at idle, a bite point that wanders, or clutch drag are classic clues the slave (or its rubber line) needs attention. Flushing the clutch hydraulic fluid every 2 years (or roughly 30,000–40,000 km) with quality DOT 3 or DOT 4 brake fluid is a solid habit in Aussie and Kiwi conditions, avoid DOT 5 silicone fluid. Protect paintwork from spills, and bleed the system carefully to purge air.
When replacement is due, a like‑for‑like unit from a reputable brand or genuine Subaru part is the go. Many techs recommend inspecting the master cylinder at the same time—if one end is tired, the other often isn’t far behind. Practical tips:
- Pre‑fill the new slave and bench‑bleed if possible to speed up pedal feel recovery.
- Inspect the flexible hose for cracks, consider replacing it with the cylinder.
- Lightly lube the pushrod contact point at the clutch fork and confirm free movement.
- Tighten mounting fasteners to the factory spec in the Subaru manual and finish with a careful bleed.
Done right, the 2016 Forester’s clutch pedal will feel firm and consistent, and gear changes will be crisp without protest.
Does my 2016 Subaru Forester have a cluth-slave-cylinder?
If it’s a 6‑speed manual, yes—it runs a hydraulic clutch with a slave cylinder on the gearbox. If it’s a Lineartronic CVT, there’s no manual clutch at all, so there’s no slave cylinder to service.
What fluid should be used and how often should it be changed?
Use quality DOT 3 or DOT 4 brake fluid as specified on the reservoir cap/owner’s manual. A 2‑year fluid change interval is a good rule of thumb locally. If the fluid looks dark or the pedal feels spongy, bring the flush forward.
What are the signs the cluth-slave-cylinder needs replacing, and can it be driven?
Look for fluid leaks at the bellhousing, a soft or sinking pedal, clutch drag, or trouble selecting first/reverse. Driving with a failing slave can leave the vehicle without clutch control, so it’s best to sort it promptly rather than risk being stranded.