Parts for your 2006 Toyota Mark x-Thrust bearing

2006 Toyota Mark X thrust-bearing — is it actually used?

Short answer: a clutch thrust-bearing (often called a release bearing) isn’t fitted to the 2006 Toyota Mark X. This model was delivered with Aisin automatic transmissions only (5- or 6-speed, grade-dependent), so there’s no manual clutch, pressure plate or release mechanism to require a clutch thrust/release bearing.

Technical sources back this up. The Toyota New Car Features (NCF) documentation for the GRX120/125 platform lists Aisin automatic gearboxes (such as A650E, A960E and AWD variants) but no manual option. The Toyota Electronic Parts Catalogue (EPC) for GRX120/125 shows transmission assemblies and service parts for autos only, there’s no listing for a clutch release/thrust bearing because there’s no clutch. Toyota GR-series engine repair literature (3GR-FSE/4GR-FSE) does mention crankshaft thrust surfaces within the main bearing set, but that’s an internal engine component, not the clutch-style thrust-bearing people usually mean.

Why the Mark X doesn’t use a clutch thrust-bearing:

• It uses a torque converter automatic, not a manual clutch.
• There’s no clutch fork, diaphragm spring or release mechanism to actuate, so no release/thrust bearing is required.
• Service schedules focus on ATF condition and driveline inspections, not clutch hardware that isn’t present.

What about “thrust bearings” in the engine? The GR-series V6 does have thrust faces as part of the crankshaft main bearings (to control end float), but they’re internal to the short block and not a stand-alone service item under routine maintenance. Unless the engine is being rebuilt or there are signs of unusual crank end-float, they’re not something a typical owner replaces.

If someone’s chasing a noise they think is a “thrust-bearing whine” like you’d hear when pressing a clutch pedal, that won’t apply to a 2006 Mark X. For driveline noises on these cars, checks usually start with the torque converter, flexplate, front pump of the automatic transmission, driveshafts, wheel bearings and differential, along with fresh, correct-spec ATF as per Toyota’s service guidance.

• Technical references commonly cited by workshops:
  • Toyota Mark X (GRX120/125) New Car Features (NCF) — transmission overview shows automatic-only fitment.
  • Toyota Electronic Parts Catalogue (EPC) — no clutch release/thrust bearing listed for GRX120/125.
  • Toyota GR-series Engine Repair Manual (3GR-FSE/4GR-FSE) — details crankshaft thrust surfaces within main bearings.

Popular questions about 2006 Toyota Mark X thrust-bearing

Does a 2006 Toyota Mark X have a clutch thrust/release bearing?
No. The 2006 Mark X runs Aisin automatic transmissions, so there’s no manual clutch and no release (thrust) bearing. Any listing for a “clutch thrust-bearing” won’t apply to this vehicle.

What thrust-bearing does the Mark X actually have?
Only the internal engine thrust surfaces that are part of the crankshaft’s main bearings. They control crank end-float and are addressed during engine rebuilds, not routine servicing.

Hearing a noise that sounds like a failing thrust-bearing — what should be checked?
On an auto Mark X, look at the torque converter, flexplate, automatic transmission front pump, accessory pulleys, and wheel bearings. Fresh, correct-spec ATF and a driveline inspection under load often help pinpoint the culprit.