Moog 512003 Wheel Bearing and Hub Assembly - Rear

Moog Wheel Bearing and Hub Assembly Overview

The Moog 512003 wheel bearing and hub assembly is engineered for reliable driveline performance on select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac vehicles. Designed to meet OEM specifications, this assembly ensures proper fit and function for models including the Allante, Aurora, Bonneville, Cutlass, DeVille, DTS, Eldorado, Grand Am, LeSabre, Lucerne, Malibu, Park Avenue, Reatta, Riviera, Seville, and Toronado.

• Flange bolt hole quantity: 4 for secure mounting
• Wheel pilot diameter: 70.100 mm for precise wheel alignment
• Brake pilot diameter: 70.600 mm to support brake component fitment
• Wheel stud quantity: 5 for stable wheel attachment
• Hub pilot diameter: 71.800 mm ensuring proper hub centering
• Rectangular flange shape with 64.800 mm flange offset
• Flange diameter: 150.500 mm and bolt circle diameter: 115.000 mm
• Includes anti-lock brake sensor for ABS functionality

Technical Details and Compatibility

The Moog 512003 wheel bearing and hub assembly is designed with a rectangular flange shape and a flange offset of 64.800 mm, providing a precise fit for the specified GM vehicles. The assembly features a 5-stud wheel configuration and a 4-hole flange bolt pattern, supporting secure installation. The included anti-lock brake sensor integrates with the vehicle’s ABS system, maintaining safety and performance standards. This part is compatible with a range of GM models such as the Cadillac DeVille and Eldorado, Buick LeSabre and Park Avenue, Chevrolet Malibu, and Pontiac Grand Am and Bonneville, among others.

Common Applications and Problem Resolution

• Replaces worn or damaged wheel bearings to eliminate noise and vibration
• Restores proper wheel alignment and stability
• Ensures ABS sensor functionality for safe braking
• Addresses wheel hub looseness or play
• Prevents premature tire wear caused by hub assembly issues

Installation Notes and Tips

Installation of the Moog 512003 wheel bearing and hub assembly requires proper torque specifications for the 4 flange bolts and 5 wheel studs. Ensure the hub pilot diameter aligns correctly with the vehicle hub to avoid misalignment. Verify ABS sensor connections during installation to maintain system integrity. It is recommended to inspect related suspension and brake components during replacement to ensure overall driveline performance.

Quality Assurance and Warranty

Moog wheel bearing and hub assemblies are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 512003 part number is backed by Moog’s quality assurance processes. Warranty coverage details should be confirmed with the product documentation or distributor, ensuring confidence in the part’s longevity and function.