Parts for your 2017 Lexus Is-Thrust bearing

2017 Lexus IS and the “thrust-bearing” question

For the 2017 Lexus IS (XE30 series), a serviceable “thrust-bearing” in the sense of a manual clutch release/throw-out bearing isn’t fitted or used. Technical references including the Lexus IS New Car Features (NCF) manual, the Lexus/Toyota Electronic Parts Catalogue (EPC), and the Lexus Repair Manual (Toyota TIS) list only automatic transmissions for this model year in Australia and New Zealand: the 8‑speed Aisin AA80E/AA81E (IS 200t/IS 300), the 6‑speed A760E in some variants, and the hybrid’s eCVT transaxle (P314) in the IS 300h. None of these use a conventional clutch or a clutch release/thrust bearing.

Why isn’t a thrust-bearing used here? In everyday motoring terms, “thrust-bearing” usually means the clutch release bearing found in manual gearboxes. As the 2017 IS range was sold locally with automatics or an eCVT only, there’s no clutch to disengage and therefore no release bearing to maintain or replace.

• Automatic IS models use a torque converter and internal multi-plate clutches managed hydraulically—no external clutch release bearing.
• The IS 300h hybrid’s eCVT uses a planetary gearset with motor-generators—again, no manual-style clutch or release bearing.

It’s worth noting there are “thrust bearings” inside the engine and transmissions in a different sense. The engine’s crankshaft thrust washers (part of the main bearings) control end float, and the auto/eCVT units contain internal needle and thrust bearings. These are internal, not routine service items, and are only addressed during a full rebuild following proper diagnosis.

If someone’s chasing a noise that sounds like a failing clutch bearing on a 2017 IS, it’s more likely to be something else: a dry accessory idler/tensioner, alternator or water pump bearing, torque converter rumble, or an internal transmission bearing. A Lexus-trained technician can isolate the source. Following the Lexus service schedule is the go, some workshops in AU/NZ also recommend periodic automatic transmission fluid servicing based on use and kilometres—take professional advice for your conditions.

Seeing a “thrust-bearing” listed online for this model usually means either a generic catalogue bucket or an engine rebuild component, not a regular service part for a standard 2017 Lexus IS.

References (technical): Lexus IS (XE30) New Car Features, Lexus/Toyota Electronic Parts Catalogue (EPC) for 2017 IS drivetrains, Lexus Repair Manual (Toyota TIS) covering AA80E/AA81E, A760E, and P314 eCVT—no manual clutch or release bearing specified for AU/NZ 2017 IS models.

FAQs

Does a 2017 Lexus IS have a clutch thrust/release bearing?
No. Local 2017 IS models are automatic or hybrid only (Aisin AA80E/AA81E or A760E, P314 eCVT for IS 300h), so there’s no manual clutch and no clutch release bearing to service or replace.

What’s causing a bearing-like whine on my 2017 IS if it’s not a clutch bearing?
Common suspects include an accessory drive idler or tensioner, alternator, water pump, or, less commonly, torque converter or internal transmission bearings. A proper inspection can pinpoint it quickly, especially if the noise changes with engine speed rather than road speed.

Are there any thrust bearings at all in the 2017 IS?
Yes, but they’re internal components: crankshaft thrust washers in the engine and thrust/needle bearings inside the auto or eCVT. They aren’t routine service items. Good fluids and scheduled servicing help longevity, internal bearings are only addressed during a rebuild when wear is confirmed.