Parts for your 2013 Toyota Bb-Wheel hubs

2013 Toyota bB Wheel Hubs: What They Do and When to Replace

Technical sources including Toyota’s Electronic Parts Catalogue (EPC) and the factory Repair Manual for the QNC20/21 platform confirm the 2013 Toyota bB uses bolt-in wheel hub assemblies with integrated, sealed bearings on both front and rear axles. So yes—wheel hubs are absolutely relevant on this model.

On the 2013 bB, the wheel hub assembly is the bit that the wheel bolts to, housing a sealed bearing that lets the wheel spin smoothly while managing load from cornering, braking, and rough roads. Up front, the hub mates to the driveshaft, at the rear it bolts to the axle beam. Being sealed, these bearings aren’t serviceable—when they wear, the whole hub assembly is replaced.

Signs the bB’s hub is on the way out usually show up as:

• A humming or growling that rises with road speed, often changing tone on gentle lane changes
• ABS light or erratic speed sensor readings (the hub carries the magnetic encoder)
• Play when rocking the wheel at 12 and 6 o’clock, or uneven tyre wear
• Heat at the hub after a short drive

Replacement is straightforward for a trained tech: remove the caliper and disc, unplug the ABS lead, and unbolt the hub from the knuckle (front) or axle flange (rear). A few pro tips for the bB:

• Use quality hub units matched to the VIN—encoder polarity must suit the ABS sensor
• Don’t hammer on the hub or driveshaft, use pullers and presses as specified
• Torque the axle nut and hub bolts to spec and replace any staked or single-use nuts/bolts
• Clean the spigot and mating face, a thin smear of anti-seize can help prevent future corrosion
• Perform a road test and ABS scan after fitting, align the wheels if the knuckle was disturbed

As for maintenance, the sealed design means there’s no greasing during routine servicing. What helps is keeping wheel nuts correctly torqued, rotating tyres on schedule, and inspecting for noise or play every service. On typical Aussie and Kiwi roads, hubs often last well beyond 100,000 km, but big potholes, heavy loads, or oversized wheels can bring that forward.

Bottom line: if the 2013 bB starts singing a wheel-bearing tune or logs an ABS fault, a fresh hub assembly restores quiet, accuracy, and safety in one go.

Popular questions about 2013 Toyota bB wheel hubs

Does the 2013 Toyota bB have serviceable bearings or complete hub units?
It runs sealed hub assemblies with integrated bearings. They’re not designed to be regreased or adjusted—when worn or noisy, the entire hub assembly is replaced.

How can someone confirm which hub fits their 2013 bB?
Match by VIN or build code against Toyota EPC. Front and rear hubs differ, and ABS encoder specs matter. A parts specialist can confirm the correct hub to avoid ABS faults.

Is it safe to drive a 2013 bB with a noisy hub?
Not recommended. Bearing wear can accelerate, heat up, and affect braking or ABS performance. It’s best to book the replacement promptly.