Parts for your 2003 Toyota Highlander-Thrust bearing

2003 Toyota Highlander/Kluger Thrust Bearing — is it actually a thing?

Short answer: a thrust bearing isn’t a stand‑alone, serviceable part on a 2003 Toyota Highlander/Kluger. Every 2003 Highlander was built with a 4‑speed Aisin automatic (U140E/U140F for V6, U241E for 4‑cyl), so there’s no clutch release/thrust bearing like you’d find in a manual. Toyota’s New Car Features and Repair Manuals for the 1MZ‑FE V6 and 2AZ‑FE 4‑cyl, along with Aisin automatic overhaul data and Toyota’s Electronic Parts Catalogue, show no external “thrust bearing” component for this model. Any thrust bearings that do exist are internal to the engine or transmission and aren’t routine service items.

In the engine, crankshaft end‑thrust is controlled by thrust faces integrated into one of the main bearings (as specified in the Toyota Engine Repair Manuals for 1MZ‑FE and 2AZ‑FE). That’s only checked or replaced during engine rebuild work, using precise end‑play measurement. It’s not a part someone would order or replace during normal servicing.

Inside the automatic transmission, there are thrust washers and needle thrust bearings that support planetary gearsets and shafts (documented in Aisin U140E/U140F/U241E overhaul manuals). Again, these are deep internal parts addressed only during a full transmission overhaul. They aren’t listed as a separate “thrust bearing” for general maintenance or quick replacement.

If someone is hunting a “thrust (release) bearing” because of noise when selecting gears or a growl when taking off, that typically points to a manual clutch issue—which the Highlander/Kluger doesn’t have in this year. For the 2003 automatic, it’s smarter to check other likely suspects:

• Torque converter or flexplate noises under load.
• Drive belt, pulleys, or idlers if the noise changes with engine rpm in Neutral.
• Engine/gearbox mounts if there’s a clunk when shifting from Park to Drive/Reverse.
• Excessive crankshaft end float (rare) assessed by a technician with a dial gauge.

So, a “thrust bearing” as a separate, orderable service part isn’t relevant to the 2003 Highlander/Kluger. If there are odd drivetrain or engine noises, a technician should diagnose with the correct Toyota Repair Manual steps rather than chasing a non‑existent clutch thrust bearing.

Popular questions

Does a 2003 Toyota Highlander have a clutch thrust/release bearing?
No. This model was automatic‑only for 2003, so there’s no manual clutch or release (thrust) bearing to replace. Any thrust elements are internal to the engine or auto transmission and not serviced during routine maintenance.

Can a worn thrust bearing cause issues on a 2003 Highlander?
Engine crankshaft thrust wear is uncommon but possible, it’s checked during engine repair by measuring end‑play. Transmission thrust components are internal and only addressed during an overhaul. Day‑to‑day symptoms blamed on a “thrust bearing” are more likely torque converter, flexplate, belt drive, or mount related.

What should be inspected if there’s a grinding or whirring noise when selecting Drive?
On an automatic Highlander, have a tech check the torque converter, flexplate, transmission fluid condition and level, and engine/gearbox mounts. Also rule out pulley and belt noises that simply coincide with gear selection.