Parts for your 2018 Holden Commodore-Thrust bearing

2018 Holden Commodore thrust-bearing — is it used on this model?

For the 2018 Holden Commodore (ZB), a clutch thrust-bearing (also called a release or throwout bearing) isn’t fitted or required. This generation was sold in Australia and New Zealand with automatic transmissions only — the 2.0-litre variants use an 8‑speed auto and the V6 uses a 9‑speed auto. Because there’s no manual gearbox and no clutch assembly, there’s no clutch thrust-bearing to service or replace on this model.

This position is backed by widely published technical material and specs that list only automatic transmissions for the ZB Commodore range. A thrust/throwout bearing is a manual-clutch part, so it’s simply not relevant to the way this Commodore is built.

• Holden MY18 Commodore (ZB) Owner’s Manual and service information — automatic transmission operation only.
• Holden/GM launch and media specifications for the ZB Commodore — confirms no manual option in AU/NZ.
• Major AU/NZ spec guides and reviews for the 2018 Commodore (ZB) — list 8‑speed or 9‑speed automatics across the range.

What the car does have is a torque converter automatic. That setup uses transmission fluid pressure and a torque converter to couple the engine to the gearbox, so there’s no clutch pedal and no release bearing. Inside the engine and transmission there are other thrust-type components (like crankshaft thrust washers and internal transmission thrust bearings/washers), but these aren’t the “thrust-bearing” people usually mean and they aren’t routine service items.

If an owner is chasing noises they’d normally blame on a clutch thrust-bearing — like whirring when the pedal’s pressed — it’s worth looking elsewhere. Common checks include the accessory belt drive, wheel bearings, or, within the auto, torque converter and transmission-related concerns. Proper diagnosis should follow the Holden/GM service procedures, with fluid condition, software updates and driveline mounts all checked first.

Popular questions

Does a 2018 Holden Commodore have a clutch thrust-bearing?

No. The ZB Commodore is auto-only in AU/NZ, so there’s no clutch assembly and no thrust/throwout bearing fitted. Any driveline noise should be diagnosed with the automatic transmission and related systems in mind.

What causes a whine or rumble if there’s no thrust-bearing to fail?

On this model it could be the torque converter, internal transmission components, wheel bearings, or even the accessory belt system. Start with a transmission fluid health check and a road test following Holden/GM diagnostic steps.

Are there any thrust bearings in the engine or gearbox at all?

Yes, but they’re internal thrust faces/bearings (e.g., crankshaft thrust washers) and not regular service parts. They’re different from a manual clutch release bearing and rarely need attention unless there’s a deeper mechanical issue.