Parts for your 2020 Mazda Cx-5-Wheel hubs

2020 Mazda CX-5 wheel hubs: what they do and when to replace them

Technical sources including the Mazda CX-5 (KF) Workshop Manual for 2017–2021 model years (front and rear hub/bearing sections) and the Mazda Electronic Parts Catalogue confirm that the 2020 Mazda CX-5 uses bolt-on, sealed wheel hub and bearing assemblies at each corner, integrated with ABS encoder rings. Wheel hubs are therefore relevant and fitted to this vehicle.

On the 2020 Mazda CX-5, the wheel hub is the central mounting point that locates the wheel, supports vehicle load via a sealed bearing, and provides the pick-up for the ABS/DSC systems. Being a sealed unit, it’s designed for long life with minimal fuss—no greasing or bearing pre-load to set—yet it must stay tight and true for stable handling and quiet running.

While there’s no scheduled replacement interval, regular servicing should include checks for play, noise, and smooth rotation. Typical signs that a hub assembly is on the way out include:

• A humming or growling that rises with road speed
• ABS or stability warnings due to a failed encoder/sensor ring
• Steering wheel vibration or wandering and uneven tyre wear
• Detectable play at the wheel when rocked at 12 and 6 o’clock

Replacement on the CX-5 is a straightforward bolt-off/bolt-on job for a trained technician. The process generally involves removing the brake caliper and rotor, disconnecting the ABS sensor lead, releasing the axle nut on driven wheels, and unbolting the hub from the knuckle or trailing arm. Because these hubs can seize to the knuckle over time, corrosion release and a puller may be required. Correct torque on the axle nut and hub fasteners is critical, re-use of single‑use fasteners and incorrect torque can shorten bearing life. Wheel studs should be clean and dry—no lubricants—and wheels tightened with a calibrated torque wrench.

Owners in Australia and New Zealand who regularly see rough roads, coastal salt air, or frequent water crossings may experience earlier wear. Quality replacement parts—genuine Mazda or reputable bearing makers such as NSK, NTN, SKF, or Timken—help maintain ride quality and braking performance. After hub replacement, a short road test and a check for ABS faults is good practice, an alignment check is sensible if any suspension fasteners were disturbed.

Popular questions about 2020 Mazda CX-5 wheel hubs

How long do wheel hubs last on a 2020 Mazda CX-5?
With normal driving, many CX-5 hub assemblies run 120,000–200,000 km or more. Harsh roads, frequent heavy loads, potholes, or water ingress can shorten that.

What are the common symptoms of a failing CX-5 wheel hub?
A speed-related hum or growl, ABS/stability warnings, vibration through the steering, or wheel play when rocked by hand are the usual clues.

Do both front or both rear hubs need changing together?
It’s acceptable to replace only the faulty hub. Changing them in pairs isn’t mandatory, though on high‑kilometre vehicles some owners prefer to do both sides to avoid another visit.