Parts for your 2015 Mazda Cx-9-Thrust bearing

2015 Mazda CX‑9 Thrust Bearing — What’s Actually Fitted

Short answer: a conventional clutch “thrust bearing” (also called a release or throw‑out bearing) isn’t used on the 2015 Mazda CX‑9. Every AU/NZ 2015 CX‑9 is fitted with a 6‑speed Aisin automatic (Mazda Activematic), so there’s no manual clutch assembly and therefore no external thrust/release bearing to service or replace.

This isn’t just hearsay. Mazda’s 2015 CX‑9 owner’s and workshop manuals list a torque converter automatic (Aisin AW6A‑EL) with no clutch release mechanism, and Mazda Australia’s model specifications show auto only across the range. On the engine side, the 3.7‑litre MZI V6 (Ford/Mazda Duratec 37/Cyclone family) uses crankshaft thrust surfaces integrated into the main bearing set to control end‑float. Those engine thrust bearings exist, but they’re internal, not a routine service item, and only addressed during engine overhaul. Likewise, the automatic transaxle contains internal thrust washers/bearings for gearsets, but again, they’re not serviced like a standalone “thrust bearing”.

Why a thrust bearing isn’t used on this vehicle as a service part:

• No manual clutch: the torque converter takes care of coupling, there’s no release fork or bearing.
• Any thrust components are internal (engine main/thrust bearings and auto trans thrust washers) and only touched during a rebuild.
• Neither Mazda’s service schedule nor the parts catalogue lists a replaceable clutch‑type thrust/release bearing for this model year.

If a CX‑9 driver is hearing noises that sound like a failing “throw‑out bearing” (whirring when shifting or selecting drive), it’s more likely related to the torque converter, flexplate, accessory bearings, or the front transfer/differential, not a non‑existent clutch release bearing.

Good maintenance focus areas instead:

• Use Mazda‑specified ATF and keep to fluid service intervals appropriate for local conditions (towing, heat, hilly terrain).
• Address oil leaks or low oil pressure promptly, good lubrication protects internal engine thrust surfaces.
• If the transmission or engine is out for major work, that’s the time a specialist inspects/renews internal thrust washers/bearings per the workshop manual.

Popular questions

Does a 2015 Mazda CX‑9 have a thrust bearing I can replace?

No. There’s no clutch release/thrust bearing on this automatic‑only model. Any “thrust” components are internal to the engine and transmission and aren’t routine service items.

What should be checked if it sounds like a throw‑out bearing noise?

On this CX‑9, look to the torque converter, flexplate, front accessory bearings (alternator, idlers), front diff/transfer case, or wheel hubs. A qualified technician can isolate the source quickly with a stethoscope and road test.

When are thrust bearings replaced on a 2015 CX‑9?

Only during major internal work. Engine thrust bearing surfaces are part of the main bearing set and are inspected/renewed during an engine rebuild. Transmission thrust washers/bearings are serviced during a full trans overhaul, not as periodic maintenance.