Wheel-hub-bearing-unit-for-GM-USA-512399

Fit Vehicles/Application:GM-USA-Chevrolet: CAMArO，Cadillac CTS

AOZ NO:L-393

OE Numbers:512399

Cross Reference Numbers:

Certification: IATF 16949:2016

Quality Guarantee: 2 years or 60000 kilometers

FAQs

Q1: What causes a hub bearing to make a grinding noise that only appears when the vehicle is turning right and braking on a wet road?

A: Wet roads reduce traction, causing the ABS system to modulate brake pressure more frequently. This rapid pressure cycling creates additional axial load fluctuations on the bearing. If the right bearing (loaded during a right turn) has damage, the combined lateral and fluctuating axial loads produce a grinding sound.

Q2: Why does my new hub have a small engraved batch number on the ABS connector housing?

A: The batch number allows the manufacturer to trace the connector back to its production batch for quality control and warranty purposes. It has no functional purpose during installation.

Q3: Can a bad hub bearing cause my vehicle to make a vibration that is felt in the headrest?

A: Yes. In severe cases, bearing-induced vibrations can travel through the seat frame and into the headrest, especially at highway speeds. This is more common with rear bearing failures where the vibration path through the chassis is more direct.

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