Parts for your 2003 Toyota Kluger-Wheel hubs

2003 Toyota Kluger wheel hubs — what they do and when to replace them

Wheel hubs absolutely are used on the 2003 Toyota Kluger. Toyota’s Electronic Parts Catalogue lists a Front Axle Hub Sub‑Assembly (e.g., 43502‑48010) and a Rear Axle Hub & Bearing Assembly (e.g., 42450‑48020) for this model year. The Toyota Repair Manual (TIS) procedures cover hub and bearing service, and major bearing manufacturers’ catalogues (such as Timken and SKF) specify direct‑fit hub/bearing units for the 2001–2007 Kluger/Highlander platform. So yes — wheel hubs are very much relevant to this vehicle.

On the 2003 Kluger, the wheel hubs form the solid mounting point for each wheel, keeping the rotor (or drum) centred and the wheel tracking straight while the bearing inside lets everything spin smoothly. Up front, the hub mates with the CV axle and sits in a pressed double‑row bearing inside the steering knuckle. Out back, the hub and bearing are typically an integrated bolt‑in unit. Many variants also carry the ABS tone ring or encoder in the hub/bearing, so a crook bearing can throw ABS lights as well as cause noise.

Because these bearings are sealed, there’s no greasing or repacking like old‑school serviceable hubs. Maintenance is mainly about prevention and inspection. During regular servicing:

• Check for humming, growling or rumbling that changes with road speed or when turning — classic worn‑bearing noises.
• Lift each corner and feel for play by grasping the tyre at 12 and 6 o’clock