Parts for your 2006 Lexus Is-Thrust bearing

2006 Lexus IS thrust-bearing

Based on Lexus service information (Lexus/Toyota Technical Information System, 2006 IS Repair Manual, Clutch section) and the Toyota/Lexus Electronic Parts Catalogue, a clutch release (“thrust”) bearing is fitted to 2006 Lexus IS models equipped with the 6‑speed manual transmission (notably many IS250 manual variants in AU/NZ). Automatic models (A960E 6‑speed auto) do not use a clutch thrust/release bearing, they employ a torque converter. The engine itself does contain crankshaft thrust bearings (integral to the main bearings), but these are not routine service items.

For manual 2006 Lexus IS owners, the thrust (release) bearing is the hard‑working go‑between linking pedal effort to the clutch. When the clutch pedal is pressed, the bearing glides against the pressure plate’s diaphragm spring, allowing smooth disengagement so gears can be selected without graunching. Its job is to carry axial load and spin quietly while the clutch is released, keeping pedal feel light and engagement drama‑free.

Tell‑tale signs it’s on the way out include a chirp, squeal, or rough whirr that appears only when the clutch pedal is depressed, a notchy pedal, or engagement that feels grabby. Because the bearing lives in the bellhousing and sees plenty of heat and dust, it’s best treated as a “replace while you’re there” item whenever the clutch is out.

• Best practice is to replace the thrust/release bearing with the clutch kit (disc and pressure plate) and inspect or resurface the flywheel at the same time.
• Lightly lubricate the input shaft sleeve and clutch fork pivot with the manufacturer‑specified high‑temp grease, don’t grease the bearing face.
• Check the clutch fork, pivot ball, and slave cylinder for wear or leaks, bleed the hydraulic system and refresh fluid (DOT 3/4) every 2 years.
• Confirm pedal height and free play per the Lexus manual after reassembly to keep take‑up consistent.

There’s no fixed kilometre interval for a thrust bearing, life swings with driving style and conditions. Many owners pair it with the first clutch replacement somewhere between 120,000–200,000 km. If noise is present only with the pedal down, don’t ignore it—continued use can mark the diaphragm spring and hasten clutch failure. A competent workshop can confirm the diagnosis and quote for a clutch kit that includes a quality release bearing suited to the 2006 IS manual.

Does every 2006 Lexus IS have a thrust bearing?
Only the manual‑transmission cars use a clutch thrust/release bearing. Automatic models don’t have one in the driveline, they use a torque converter. The engine’s internal thrust bearings are separate and not routine service parts.

What noises point to a failing thrust bearing on an IS250 manual?
A chirp, squeal, or rumble that appears when the pedal is pressed and disappears when released is classic. If the noise is present at idle with the pedal up, suspect the gearbox input bearing or another rotating component instead.

Should the thrust bearing be replaced on its own?
It can be, but it’s more cost‑effective to replace the entire clutch kit (disc, pressure plate, release bearing, and pilot bearing/bush) while the gearbox is out. Labour overlaps heavily, and new mating surfaces help the new bearing live longer.