Parts for your 2017 Toyota Mark x-Thrust bearing

2017 Toyota Mark X thrust bearing — is it actually used?

For most drivers, “thrust bearing” means the clutch release (throwout) bearing you find in a manual gearbox. The 2017 Toyota Mark X (GRX130/GRX133), however, was built with a 6‑speed Super ECT automatic (Aisin A760 series) across the range, with no manual option. That means there’s no clutch release/thrust bearing fitted to this vehicle.

Technical sources support this: Toyota’s Repair Manual (TIS) for the GRX130 series provides procedures for the Automatic Transmission/Transaxle only, the Toyota Electronic Parts Catalogue for GRX130/GRX133 contains no clutch cover, disc, or release bearing groups, and 2017 model literature lists a 6‑speed automatic as standard. With a torque converter in place of a manual clutch, the Mark X doesn’t require a clutch‑type thrust/release bearing.

There are, however, internal thrust elements on this model:

• Engine crankshaft thrust washers/bearings integrated into the main bearing set to control end‑float.
• Internal thrust/needle bearings inside the Aisin automatic to support rotating components.

These aren’t routine service items and aren’t replaced the way a clutch release bearing would be. They’re only inspected or renewed during an engine or transmission overhaul, or when specific faults are diagnosed (e.g., excessive crank end‑play, axial knock, metal debris found during transmission service).

If a workshop has recommended “thrust bearing replacement” on a 2017 Mark X, it’s worth asking exactly which component they mean. On this auto‑only model, driveline noises or vibrations that change with gear selection are more likely tied to the torque converter, flexplate, engine mounts, accessory pulleys, or even wheel bearings. Following Toyota’s diagnostic flow in the service information before authorising major work is the smart move.

So if someone’s hunting a clutch‑style thrust bearing for a 2017 Mark X, they can skip it — it’s not a relevant service part on this vehicle.

Does the 2017 Toyota Mark X have a clutch thrust/release bearing?

No. The 2017 Mark X is auto‑only (6‑speed Super ECT), so there’s no manual clutch and no clutch release/thrust bearing fitted from factory.

Are there any thrust bearings in the engine or transmission that need servicing?

Yes, but they’re internal. The engine uses crankshaft thrust washers/bearings, and the automatic transmission uses thrust/needle bearings. These are inspected during overhaul or when end‑float or internal wear is suspected — not as routine maintenance.

What should be checked if there’s a whirring or grinding noise that changes with gear selection?

On an automatic Mark X, look to the torque converter, flexplate, transmission pump, engine mounts, or accessory pulleys first. Wheel bearings and tyres can also mimic driveline noises. A proper diagnostic per Toyota TIS will pinpoint the source before any teardown.

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