AA Ignition Front Wheel Hub & Bearing Assembly Set of 2 — Direct-Fit Replacement with Pre-Greased Sealed Bearings and ABS Sensor (

AA Ignition front wheel bearing and hub assembly set of 2 is a direct-fit replacement designed to restore smooth wheel rotation, ABS sensing, and eliminate noise or play caused by a worn bearing.

If your vehicle shows humming, grinding, vibration, or an ABS/traction fault light, a failing wheel bearing and hub assembly is a common culprit. This pair matches OEM fitment for many Buick, Cadillac, Chevrolet and other GM models and includes pre-greased sealed bearings plus the integrated ABS sensor where applicable. Sold as a set of two for paired replacement, these units are engineered to install without modification and are backed by a lifetime warranty from AA Ignition.

Which vehicles will these hub assemblies fit?

These units are built to directly replace specific GM hub assemblies used across a number of Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac and Saturn models. Compatibility is determined by matching the original part number or checking the full fitment chart for model years and variants.

• Direct-fit examples: Buick Century (1997–2005), LaCrosse (2005–2009), LeSabre (2000–2005), Lucerne (2006–2011).
• Also fits Park Avenue, Regal, Rendezvous, Riviera, Terraza and many GM derivatives—confirm with original part number.
• Cross-references OEM numbers 513121, 513121AA and 12429203 for verification.

How does this assembly restore wheel performance and safety?

The hub assembly houses the wheel bearing and often the ABS tone ring or sensor, so replacing a worn unit removes excess play and rough surfaces that cause noise and vibration. With a sealed, pre-greased bearing and precision machined mounting surfaces, the replacement re-establishes correct wheel positioning and ABS signal reliability.

• Sealed, pre-greased bearings for immediate installation and reduced maintenance.
• Integrated ABS sensor/tone functionality where applicable to clear fault lights.
• Precision machined flange and mounting holes for tight, wobble-free fit.

What should I expect during installation and maintenance?

Installation is plug-and-play when matched to the correct vehicle and part number—no special machining or press work is required for a proper direct-fit replacement. For a reliable repair, replace assemblies in axle-matched pairs and torque the axle nut to factory specifications; always follow safety and alignment checks after replacement.

• Sold as a pair to encourage balanced handling and uniform wear.
• Recommended: replace both front hubs at once and torque to spec.
• After installation: road test and verify ABS/traction light behavior and wheel runout.

What warranty and quality assurances are included?

Although these are aftermarket parts and not original OEM units, they are manufactured to meet or exceed factory tolerances and come pre-lubricated and sealed for long service life. AA Ignition supports the product with a lifetime warranty—contact support for replacement if the assembly fails under normal use.

• Built to OEM-style dimensions and tolerance standards.
• Lifetime warranty provided by AA Ignition for peace of mind.
• Sold as Set of 2; recommended to replace both sides for consistency.

Who is this for? This hub and bearing set is aimed at DIY mechanics, independent repair shops, and owners of compatible GM vehicles looking for a cost-effective, reliable replacement for worn front wheel hub assemblies. If you need to eliminate noise, vibration, or ABS/traction warnings and want a direct-fit part that installs without modification, matching your original part number to these cross-references will ensure correct fit and dependable performance.