Parts for your 2013 Toyota Mark x-Wheel hubs

2013 Toyota Mark X wheel hubs — what they do and when to service them

Technical sources confirm the 2013 Toyota Mark X is fitted with wheel hubs. The Toyota Electronic Parts Catalogue for the GRX130/133 series lists a Front Axle Hub Sub‑Assembly and a Rear Axle Hub &, Bearing Assembly, and the Toyota Repair Manual (Suspension/Axle chapters) details hub removal and installation procedures. That means wheel hubs are absolutely relevant on this model.

On the 2013 Mark X, the wheel hub is the sturdy bit that the wheel bolts to. It holds the wheel studs, supports the brake rotor, houses the sealed bearing, and provides the encoder surface for the ABS wheel‑speed sensor. On rear‑wheel‑drive variants, the front hubs carry the steering loads while the rears manage drive torque, on AWD grades, the front hubs also carry a driveshaft and axle nut. Either way, they’re central to smooth, quiet rotation and safe braking.

While hubs and their bearings are sealed and don’t need regular greasing, they do wear. Typical signs that a hub or bearing is on the way out include:

• A road‑speed hum, growl, or droning that gets louder when cornering one way and quieter the other.
• Noticeable play when the tyre is rocked at the 12 and 6 o’clock positions.
• ABS or traction lights triggered by a damaged encoder surface or sensor gap.
• Heat or a burnt smell from a corner after a drive.

Good servicing habits help hubs last and make replacements straightforward:

• At regular services (say every 20,000 km), spin each wheel off the ground and listen for roughness, check for play and inspect the hub face for rust build‑up.
• Keep the hub flange clean and flat so the rotor and wheel sit true, helping avoid brake shudder.
• Always torque wheel nuts to factory spec — over‑tightening can stress studs and the bearing.
• If a front hub/bearing is replaced, a wheel alignment is wise if the knuckle was disturbed.
• AWD models often require a new axle nut and careful handling of the ABS sensor during hub work, follow the workshop manual.

Most Mark X hubs are either a bolt‑in unit (common at the rear) or a hub with a press‑fit bearing (often at the front). They’re not serviceable items, so when they’re noisy or loose, replacement is the go. Quality parts, correct press techniques, and the right torque settings from the manual will keep the Mark X rolling quietly and safely.

Popular questions about 2013 Toyota Mark X wheel hubs

How can someone tell which side hub is noisy on a Mark X?
A steady hum that changes when gently steering is the giveaway. If the noise gets louder on a right‑hand bend, the left hub is often the culprit, and vice‑versa. A technician can confirm by spinning wheels in the air, feeling for roughness, and checking for play at the wheel.

Can the Mark X wheel bearings be adjusted or greased?
No. The bearings are sealed within the hub assembly. There’s no adjustment or re‑packing with grease. If there’s noise, play, or contamination, the fix is to replace the hub/bearing assembly as per the repair manual procedures.

Do both hubs need replacing at the same time?
Not necessarily. It’s fine to replace the faulty side only. That said, on high‑kilometre vehicles, the opposite side may not be far behind, so some owners choose to do hubs in pairs to save future downtime and duplicate labour.