Moog 520003 Wheel Bearing and Hub Assembly - Front

Overview of Moog 520003 Wheel Bearing and Hub Assembly

The Moog 520003 wheel bearing and hub assembly is engineered for precise fitment on select Mercedes-Benz models including the C250, C300, C350, E350, E400, E550, SLC300, SLK55 AMG, SLK250, SLK300, and SLK350. This component integrates essential features such as an anti-lock brake sensor and specific pilot diameters to ensure reliable performance and safety.

• Wheel pilot diameter: 66.400 mm
• Brake pilot diameter: 67.000 mm
• Five wheel studs for secure mounting
• Flange diameter: 150.000 mm
• Bolt circle diameter: 112.000 mm
• Includes anti-lock brake sensor for ABS functionality

Technical Details and Specifications

The Moog 520003 hub assembly is designed with a 66.4 mm wheel pilot diameter and a 67 mm brake pilot diameter, ensuring precise alignment with the wheel and brake components of compatible Mercedes-Benz vehicles. The assembly features five wheel studs arranged on a 112 mm bolt circle diameter, providing a secure and stable connection to the wheel. The flange diameter measures 150 mm, contributing to the overall structural integrity of the hub. Additionally, the inclusion of an anti-lock brake sensor supports the vehicle’s ABS system, maintaining safety and control during braking.

Compatible Mercedes-Benz Models

This wheel bearing and hub assembly is compatible with a range of Mercedes-Benz models, including:

• Mercedes-Benz C-Class: C250, C300, C350
• Mercedes-Benz E-Class: E350, E400, E550
• Mercedes-Benz SLK-Class: SLK55 AMG, SLK250, SLK300, SLK350
• Mercedes-Benz SLC-Class: SLC300

Common Applications and Problem Resolution

The Moog 520003 assembly addresses several common driveline and axle issues, such as:

• Wheel bearing noise or roughness
• Excessive wheel play or looseness
• ABS warning light activation due to sensor failure
• Uneven brake rotor wear caused by improper hub alignment
• Vibration or wobbling during vehicle operation

Installation Notes and Tips

Proper installation of the Moog 520003 wheel bearing and hub assembly is critical for optimal performance. It is recommended to:

• Verify compatibility with the specific Mercedes-Benz model and year before installation
• Use a calibrated torque wrench to tighten wheel studs to manufacturer specifications
• Inspect the axle and surrounding components for wear or damage prior to assembly
• Ensure the anti-lock brake sensor is correctly connected and functioning
• Follow all safety procedures and use appropriate tools during installation

Quality Assurance and Warranty

Moog manufactures the 520003 wheel bearing and hub assembly to meet stringent quality standards. Each unit undergoes rigorous testing to ensure durability and reliability under normal operating conditions. While specific warranty details may vary, Moog typically offers a limited warranty covering defects in materials and workmanship. Consult the product documentation or Moog directly for precise warranty information.