Parts for your 2013 Mazda Bt-50-Thrust bearing

2013 Mazda BT-50 thrust-bearing: what it is, and when it applies

Based on technical sources including the Mazda BT-50 Workshop Manual (2011–2016) and the Ford Ranger PX (T6 platform mate) workshop documentation, the 2013 BT-50 fitted with the 6‑speed manual gearbox uses a concentric slave cylinder with an integrated clutch release bearing—commonly called a thrust bearing. Automatic models do not have a clutch thrust bearing, as they use a torque converter, any thrust bearings in the auto are internal to the transmission and not a routine service item. Engine crankshaft thrust washers do exist, but they’re internal to the engine and not part of regular servicing.

On a manual 2013 Mazda BT‑50, the thrust bearing’s job is simple: when the driver presses the clutch pedal, hydraulic pressure moves the concentric slave cylinder, and its integrated bearing presses smoothly on the pressure plate fingers to disengage the clutch. It lives inside the bellhousing, riding on the gearbox input shaft, and is sealed and lubricated for life.

As a wear item, it’s sensible to replace the thrust bearing whenever the clutch is out. The BT‑50’s design means the gearbox has to be removed to access it, so most workshops fit a complete clutch kit (pressure plate, friction disc, concentric slave/release bearing) at the same time. This keeps labour efficient and reduces the risk of doing the job twice. It’s also smart to check the flywheel surface, the spigot/pilot bearing in the crank, and the rear main seal for weeping while you’re in there.

Tell‑tale signs of a tired thrust bearing include a chirp, whirr, or droning that changes when the clutch pedal is pressed, a clutch that won’t fully disengage, or fluid misting from the bellhousing indicating a leaking concentric slave. If any of these show up, book it in—prolonged noise can lead to pressure plate damage.

Day‑to‑day, there’s not much for an owner to maintain beyond keeping the clutch hydraulic fluid fresh as per the service schedule and ensuring there are no leaks. When the clutch is replaced, proper bleeding of the hydraulic system (per the workshop manual procedure) is key to a firm pedal and long bearing life. Avoid lubricating the bearing—it's sealed—and only use parts and fluid that meet Mazda’s specifications. Torque settings and alignment are critical, so this is a job best handled by a competent technician.

• Typical replacements: complete clutch kit including concentric slave/release bearing
• Watch for: noise with pedal pressed, fluid leaks at bellhousing, dragging clutch

FAQs

Does an automatic 2013 BT‑50 have a thrust bearing?
No. Autos use a torque converter and don’t have a clutch thrust (release) bearing. Any thrust bearings inside the automatic transmission are internal components and not part of routine servicing.

What are the signs a BT‑50 thrust bearing is failing?
A chirping or whirring noise that appears or changes when the clutch pedal is pressed, clutch drag or difficulty selecting gears at a standstill, and signs of hydraulic fluid from the bellhousing area can all point to a worn or leaking concentric slave/release bearing.

Should the thrust bearing be replaced with the clutch?
Yes. Because the gearbox must be removed to access it, replacing the thrust bearing whenever the clutch is renewed is good practice. Most workshops fit a full clutch kit to save labour and reduce repeat visits.