Parts for your 2004 Toyota Altezza-Wheel hubs

2004 Toyota Altezza wheel hubs: what they do and how to look after them

Wheel hubs are absolutely fitted to the 2004 Toyota Altezza (XE10 series). This is documented in Toyota’s Electronic Parts Catalogue for GXE10/SXE10 and the Lexus IS200/IS300 workshop/repair manuals covering Chassis – Front and Rear Axle & Hub. Those technical sources list front “axle hub” components, rear hub and bearing assemblies, wheel studs, and ABS-related hub features—so wheel hubs are very much relevant to this vehicle.

On an Altezza, the hub sits at the centre of each wheel, carrying the brake rotor and wheel studs while coupling to a sealed, double‑row bearing in the steering knuckle (front) or rear carrier. It keeps the wheel running true, supports the car’s weight, and, on ABS‑equipped models, works with a magnetic encoder or tone arrangement that the sensor reads for wheel speed. Being rear‑wheel drive, the front hubs are non‑driven (no CV nut up front), while the rear hubs interface with the drive shafts.

As part of regular servicing, it’s smart to check for early signs of hub or bearing wear. Typical clues include a humming or droning that rises with road speed, rumbling that gets louder when loading one side through a bend, ABS warning lights or erratic speed readings, warmth at the hub after a run, and any detectable play when rocking the wheel at 12 and 6 o’clock. Uneven tyre wear and a vague steering feel can also point to hub/bearing issues.

Replacement on an Altezza usually involves pressing the old bearing out of the knuckle and refitting a new bearing with the hub flange, or installing a quality hub-and-bearing unit where applicable. Using a press with the correct drifts and supporting the inner and outer races properly is critical to avoid damaging a brand‑new bearing. It’s good practice to replace any stretched or corroded wheel studs, renew hub seals, and clean/inspect the ABS sensor and its seat before reassembly. Torque all fasteners and wheel nuts to factory spec, then road‑test for noise and ABS operation. Alignment isn’t typically altered by a hub change, but if there was impact damage or the knuckle was replaced, get the alignment checked. Sticking with reputable bearings (e.g., Koyo/NSK as commonly specified in Toyota manuals) pays off in quiet running and long life.

• Service tip: recheck wheel‑nut torque after 50–100 km.
• If one rear hub/bearing has failed at high kilometres, consider doing the other side soon after.

Popular questions about 2004 Toyota Altezza wheel hubs

Do all 2004 Altezzas use the same front and rear hubs?
Most 2004 Altezza variants (AS/RS, GXE10/SXE10) share the same hub architecture, with part numbers varying by ABS/brake package and market. Front hubs are non‑driven, while rears integrate with the drive shafts. Always match parts to VIN or build code as outlined in Toyota’s EPC.

Can the bearing be replaced without changing the hub?
Yes—on many Altezza applications the bearing is a press‑fit into the knuckle and the hub flange is reused if it’s within spec. If the hub journal is pitted, out of round, or scored, it’s wise to replace the hub and bearing together to prevent early noise or play.

What symptoms mean a hub or bearing needs attention?
A steady speed‑related hum, roughness when spinning the wheel by hand, play at the rim, ABS faults, or heat at the hub after a drive are red flags. If noise changes when weaving gently at speed, that’s another classic sign pointing to a worn bearing/hub on the loaded side.