Moog 513125 Wheel Bearing and Hub Assembly - Front

Moog Wheel Bearing and Hub Assembly Overview

The Moog 513125 wheel bearing and hub assembly is engineered for precise fitment and reliable performance on a wide range of BMW models. Designed to meet OEM specifications, this assembly ensures proper wheel alignment and smooth rotation for vehicles such as the BMW 3 Series, 5 Series, and Z Series.

• Wheel pilot diameter: 72.5 mm
• Brake pilot diameter: 79.0 mm
• Wheel stud quantity: 5
• Hub pilot diameter: 79.0 mm
• Includes anti-lock brake sensor
• Flange offset: 45.0 mm
• Flange diameter: 139.5 mm
• Bolt circle diameter: 120.0 mm (4.72 inches)

Technical Details and Specifications

The Moog 513125 wheel bearing and hub assembly is designed with a 5-stud configuration and a wheel pilot diameter of 72.5 mm, ensuring compatibility with specific BMW models including the 318i, 320i, 325i, 328i, 330i, 525i, 530i, 535i, 540i, 735i, 740i, 750iL, 840Ci, 850Ci, M3, Z3, and Z4. The brake pilot and hub pilot diameters both measure 79.0 mm, providing a secure fit for brake components and hub mounting. The flange offset of 45.0 mm and flange diameter of 139.5 mm are engineered to maintain proper wheel positioning and alignment. Additionally, the assembly includes an anti-lock brake sensor, which integrates with the vehicle’s ABS system for enhanced safety and control.

Compatible BMW Models and Applications

This wheel bearing and hub assembly is compatible with a broad range of BMW vehicles, including the 3 Series models such as the 318i, 318is, 318ti, 320i, 323Ci, 323i, 323is, 325Ci, 325i, 325is, 328Ci, 328i, 328is, 330Ci, and 330i. It also fits 5 Series models like the 525i, 525iT, 530i, 535i, 540i, as well as 7 Series models including the 735i, 735iL, 740i, 740iL, and 750iL. Additionally, it supports select 8 Series models such as the 840Ci, 850Ci, 850CSi, and 850i, along with performance and roadster models like the M3, Z3, and Z4. The Moog 513125 is designed to meet the specific requirements of these vehicles, ensuring proper fit and function.

Common Issues Addressed by This Assembly

• Eliminates wheel bearing noise and vibration
• Restores proper wheel alignment and rotation
• Resolves ABS sensor faults related to hub assembly
• Prevents premature wear of wheel studs and hubs
• Improves overall vehicle handling and safety

Installation Notes and Tips

When installing the Moog 513125 wheel bearing and hub assembly, ensure the vehicle is securely lifted and supported. Remove the old hub assembly carefully to avoid damage to surrounding components. Verify that the wheel pilot diameter and bolt circle diameter match the vehicle specifications. The included anti-lock brake sensor should be connected properly to maintain ABS functionality. Torque all fasteners to manufacturer specifications and perform a wheel alignment check after installation to ensure optimal performance.

Quality Assurance and Warranty

Moog wheel bearing and hub assemblies are manufactured to meet or exceed OEM standards, providing reliable durability and performance. The 513125 part number undergoes rigorous quality control testing to ensure precise fitment and long service life. Moog typically offers a limited warranty on their wheel bearing and hub assemblies; please refer to the product documentation for specific warranty details.