Wheel-hub-bearing-unit-for-GM-USA-512287

Fit Vehicles/Application:GM-USA-Chevrolet: HHr 06-07, Malibu 04-07，Pontiac: G6 05-07

AOZ NO:L-077

OE Numbers:512287

Cross Reference Numbers:

Certification: IATF 16949:2016

Quality Guarantee: 2 years or 60000 kilometers

FAQs

Q1: What causes a hub bearing to make a clunking sound only on initial acceleration from a stop?

A: This indicates excessive internal clearance. When torque is first applied, the drivetrain components shift suddenly within the worn bearing, creating a single clunk before settling into normal rotation.

Q2: Why does my new hub have a small plastic cover over the bolt holes?

A: This cover protects the threaded bolt holes from corrosion and debris during storage and shipping. Remove it before beginning installation to ensure the bolts thread in smoothly.

Q3: Can I clean a hub bearing with brake cleaner to remove shipping grease?

A: No. Brake cleaner can penetrate the bearing seals and dissolve the internal factory grease, leading to premature failure. Only clean the exterior mounting surfaces, and keep all solvents away from the bearing seals.

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