Wheel-hub-bearing-unit-for-GM-USA-512359\15819433

Fit Vehicles/Application:GM-USA-Cadillac STS

AOZ NO:LD144

OE Numbers:512359

Cross Reference Numbers:15819433

Certification: IATF 16949:2016

Quality Guarantee: 2 years or 60000 kilometers

FAQs

Q1: Why does my hub bearing make a noise that gets louder when I carry a heavy load in the back seat?

A: Additional weight in the back seat increases the vertical load on the rear bearings. If the bearing has existing wear, the extra load compresses the internal components more tightly, amplifying friction and noise.

Q2: Why does my new hub have a small rubber seal visible around the ABS wire where it enters the housing?

A: This seal prevents water, dust, and road salt from entering the wire housing where it connects to the hub body. It protects the internal sensor wiring from corrosion and environmental damage.

Q3: Can a hub bearing failure cause my vehicle to make a noise that sounds like a worn serpentine belt?

A: Yes. A bearing with degraded grease or surface wear can produce a high-pitched squealing or chirping sound similar to a worn belt. To differentiate, check whether the noise changes with vehicle speed (bearing) or engine RPM (belt).

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