Slave Clutch Cylinder: Guides by Make & Model
Easy to confuse with a failing master cylinder — find your specific model below.
The Other Half of the Hydraulic Clutch System
Internal and external designs are not interchangeable, and symptoms look nearly identical from the driver's seat. Pick your make and model below for the specifics.
Symptoms of Failure
A soft or spongy clutch pedal (a symptom shared with a failing master cylinder, hard to distinguish without inspection), the pedal sinking to the floor (a more advanced sign of hydraulic fluid loss), a fluid leak near the transmission (external slave cylinders can leak visibly; internal ones may only show as slowly dropping fluid level with no visible leak), and difficulty selecting gears from insufficient hydraulic pressure are all worth acting on.
DIY Difficulty and Aftermarket Advice
External slave cylinders are a moderate DIY job. Internal concentric slave cylinders are considerably more difficult, since the gearbox typically needs to be separated from the engine to access them — a job most owners leave to a garage given the labour involved. Expect 1-2 hours for an external unit, or a full day's labour for an internal one.
Reputable aftermarket slave cylinders are a reliable, cost-effective alternative to OEM parts, provided the correct type (internal or external) is confirmed before ordering. Given how labour-intensive internal cylinder replacement is, it's worth pairing it with a full clutch kit replacement while the gearbox is already separated, even if the clutch itself still has some life left.
Not included: fully electric models, which don't use a clutch system.