Parts for your 2017 Holden Commodore-Cluth slave cylinder

2017 Holden Commodore cluth-slave-cylinder (clutch slave cylinder) — what it does and when to service it

On the 2017 Holden Commodore (VF Series II), a cluth-slave-cylinder is relevant on manual-transmission models and not used on automatics. Technical sources including the Holden VF Series II Service Manual via GM Service Information (GMSi), the Holden/GM EPC (parts catalogue), and Tremec TR-6060 service data all show the manual Commodore using a concentric clutch slave cylinder (hydraulic release bearing) mounted inside the bellhousing. Automatic variants don’t have a clutch hydraulics circuit, so a cluth-slave-cylinder doesn’t apply to those cars.

Where it’s fitted (manuals), the cluth-slave-cylinder’s job is simple: convert pedal pressure into hydraulic movement that pushes the release bearing onto the pressure plate fingers, cleanly disengaging the clutch so gears slide in without a crunch. On the VF II, the slave cylinder and release bearing are a single concentric unit around the gearbox input shaft, which keeps pedal feel tidy and reduces external linkage clutter.

As part of regular servicing, it pays to keep the clutch hydraulic fluid fresh and clean. The system shares brake fluid and likes the grade specified in the owner’s handbook (typically DOT 3 or DOT 4 as specified). Check fluid level and colour at each service, and bleed/flush every 2 years or 40,000–50,000 km if the pedal gets spongy or the fluid looks dark. Always inspect for weeping at the bellhousing, damp lines, or a soft pedal that won’t return—classic signs the slave may be on the way out.

Replacement on these cars is more involved because the concentric unit lives inside the bellhousing. The gearbox has to come out, so most workshops recommend fitting a new cluth-slave-cylinder whenever the clutch kit is replaced. Use new sealing washers, torque the fasteners to spec, and pressure-bleed the system to purge air fully. If the vehicle has a remote bleeder fitted, bleeding is quicker, otherwise access the bleeder on the bellhousing. It’s also smart practice to inspect the clutch master cylinder and the pedal bushings at the same time to keep pedal travel consistent.

• Symptoms to watch: hard or notchy shifts, gear graunching when selecting reverse/first, a sinking or spongy pedal, fluid loss with no external brake leak, or clutch not fully disengaging.
• Best practice: replace the cluth-slave-cylinder with the clutch, keep fluid fresh, and don’t ignore early warning signs—small leaks become big gearbox-out jobs.

Popular questions

Does a 2017 Holden Commodore have a cluth-slave-cylinder?
Yes on manual models, it’s a concentric slave cylinder integrated with the release bearing inside the bellhousing. Automatic models don’t use a clutch hydraulic system, so there’s no slave cylinder fitted.

How long should a cluth-slave-cylinder last on a VF II?
There’s no fixed lifespan, but many last well over 100,000 km. Heat, fluid neglect, and hard use shorten life. If the gearbox is out for a clutch, most techs replace the slave as preventative maintenance because access requires transmission removal.

Can the clutch be bled at home?
It can, provided the correct brake fluid is used and the proper bleeding process is followed. A pressure bleeder makes it easier and helps avoid trapped air. If the pedal won’t firm up or fluid loss continues, the slave or master may need replacement.