Parts for your 2017 Toyota C-hr-Wheel hubs

2017 Toyota C‑HR wheel hubs — purpose, service and replacement

Wheel hubs are absolutely used on the 2017 Toyota C‑HR. Technical sources including the Toyota Electronic Parts Catalogue and Repair Manual list a front Axle Hub Sub‑Assembly (PNC 43550) and a rear Axle Hub & Bearing Assembly (PNC 42450) for the C‑HR (X10/AX10/ZYX10). Those assemblies integrate the wheel bearing and mounting flange, and on many variants, the ABS tone ring or encoder. So yes — wheel‑hubs are relevant, fitted, and essential to how this compact SUV rolls, steers, and stops.

The hub’s job is to support the wheel and brake rotor, keep the bearing preloaded correctly, and provide a mounting face for the wheel. On models with an encoder, the hub also feeds wheel‑speed data to the ABS/Vehicle Stability Control. When a hub or its sealed bearing starts to go, the driver might notice a humming that grows with road speed, a rough growl when cornering, or ABS/traction warnings from erratic wheel‑speed signals.

For the 2017 C‑HR, hubs are sealed units — there’s no greasing or bearing adjustment in regular servicing. Instead, stick to:

• Listen for noise during test drives and rotate tyres to confirm the sound follows the hub, not the tyre.
• Check for play by rocking the wheel at 12 and 6 o’clock with the vehicle safely lifted.
• Inspect for heat discolouration, metal dust near the hub, or moisture ingress after flood exposure.
• Scan for ABS codes, some hub encoder faults only show up electronically.

Replacement is straightforward for a trained tech: remove the brake caliper and rotor, unplug the ABS sensor (where applicable), and unbolt the hub from the knuckle (front) or trailing arm (rear). Always clean the mating surfaces, route the ABS lead exactly as per the manual, and torque all fasteners and the axle nut to Toyota spec. Cheap hubs can introduce runout and early noise, so OE or reputable aftermarket units (from known bearing manufacturers) are worth it. After fitting, road test, recheck torque after a short run, and perform an ABS/VSC health check. With quality parts and proper installation, C‑HR wheel hubs commonly last well beyond 150,000 km on Australian and New Zealand roads.

FAQs

How long do the 2017 C‑HR wheel hubs typically last?
With quality roads and tyres, many see 150,000–250,000 km. Harsh impacts, oversized wheels, or frequent water crossings can shorten life. Early noise or ABS faults are the usual prompts to replace.

Do the C‑HR hubs include the ABS sensor?
Most 2017 C‑HR hubs use an internal encoder ring in the bearing. The separate wheel‑speed sensor bolts to the knuckle and reads that ring. Replace damaged sensors and avoid magnetising or contaminating the encoder surface.

Can the bearing be replaced on its own, or is it hub‑only?
The C‑HR uses sealed hub/bearing units. In practice, replace the complete hub assembly. Pressing bearings in and out risks damage and can lead to noise or ABS issues if not done to spec.