Parts for your 2007 Toyota Caldina-Wheel hubs

2007 Toyota Caldina wheel-hubs: what they do and when to service them

Technical references confirm wheel-hubs are absolutely relevant to the 2007 Toyota Caldina. The Toyota Electronic Parts Catalogue (EPC) for the Caldina T24# series (2002–2007) lists both “Hub Sub-Assembly, Front Axle” and “Rear Axle Hub & Bearing Assembly,” and the Toyota Repair Manual includes procedures under Front Axle Hub and Rear Axle Hub for these models (including FWD AZT/ZZT variants and AWD ST246). That means the vehicle is fitted with hub assemblies front and rear.

On this Caldina, the wheel-hub mounts the wheel to the car and supports the vehicle’s weight via a sealed bearing. It provides the wheel studs for the nuts, carries the brake rotor, and interfaces with the drive shaft splines on driven wheels. Many assemblies also integrate the ABS wheel speed pickup or tone ring. Depending on variant, the design may be a bolt-on sealed hub unit, or a hub with a bearing pressed into the steering knuckle—both are standard Toyota approaches covered in the factory manual.

• Typical symptoms of a failing hub/bearing: a humming or growling noise that rises with road speed, play felt at the wheel (12-and-6 o’clock test), ABS warning light or erratic speed readings, uneven tyre wear, or a hot hub after driving.
• Service checks: during routine servicing or tyre rotations (around every 10,000–20,000 km), inspect for noise, roughness when spinning, and any free play. Confirm the ABS sensor lead and connector (where fitted) are intact.

As these are sealed bearings, routine greasing isn’t required. Once roughness or play shows up, replacement is the go. Quality replacement is important—match the assembly to the car’s build and ABS specification. The factory procedure calls for correct hub/axle nut torque and careful seating