Parts for your 2020 Mazda Bt-50-Thrust bearing

2020 Mazda BT-50 Thrust Bearing

Based on technical references including the Mazda BT-50 Workshop Manual (2020 Clutch System), major clutch catalogues from Exedy and Clutch Industries for 09/2020-on BT-50 models, and platform documentation shared with the 2020-on Isuzu D‑MAX, the 2020 Mazda BT‑50 with a manual transmission is fitted with a clutch release thrust bearing. On many variants it’s integrated into a concentric slave cylinder (CSC). Automatic BT‑50s don’t use a clutch thrust bearing, so the part isn’t relevant to those vehicles.

On a manual BT‑50, the thrust bearing’s job is straightforward: it transfers the driver’s pedal effort smoothly to the rotating clutch pressure plate, letting gears slot in without graunching. With a CSC setup, hydraulic pressure moves the bearing directly against the pressure plate fingers, cutting out external forks and linkages for a lighter, more consistent pedal feel.

There’s no fixed service interval for a thrust bearing, but it’s smart practice to replace it whenever the clutch is out. The part is relatively inexpensive compared with the labour to drop the transmission, and on CSC-equipped models the bearing and slave are commonly replaced as a complete unit. During regular servicing, keep an eye on the clutch hydraulic fluid (typically DOT 4 brake fluid) and bleed it if the pedal feels spongy. Any fluid weep from the bellhousing area can point to a CSC leak, which warrants prompt attention before it contaminates the clutch.

• Tell-tale symptoms include: chirping or whirring that changes when the clutch pedal is pressed, a notchy pedal action, difficulty selecting gears, or fluid spots and a damp bellhousing.

When replacing the thrust bearing on a BT‑50, use quality components that meet OE specs noted in the workshop manual. If the vehicle uses a CSC, confirm whether the bearing is serviceable separately or supplied only as an assembly. Always check the clutch fork pivot (if fitted), pressure plate fingers, flywheel surface, and input shaft splines, and torque everything to the manual’s figures. A quick clutch alignment and a proper hydraulic bleed will help the ute drive like new.

For auto-trans BT‑50s, a clutch thrust bearing isn’t used, drivetrain engagement is handled by the torque converter and internal transmission components, which is why “thrust-bearing” parts don’t apply to those models in parts catalogues.

FAQs

What are the signs the thrust bearing is failing on a 2020 BT‑50?

Expect a chirp, squeal, or whirr that changes as the clutch pedal is pressed, plus a rough or notchy pedal feel and harder gear changes. On CSC models, any hydraulic fluid leak at the bellhousing is a red flag that the bearing/slave assembly may be on the way out.

Do automatic 2020 BT‑50s have a thrust bearing?

No. Autos don’t use a clutch thrust bearing, they use a torque converter. That’s why thrust-bearing listings and clutch kits only apply to manual BT‑50s.

Should the thrust bearing be replaced when doing the clutch?

Yes, it’s recommended. The transmission is already out, so replacing the bearing (or the CSC assembly on applicable models) alongside the clutch disc and pressure plate helps avoid doubling up on labour later.