SKF CIR508 Wheel Bearing Retaining Ring - Rear

SKF CIR508 Wheel Bearing Retaining Ring

The SKF CIR508 wheel bearing retaining ring is a C-clip retainer used to secure a generation one wheel bearing inside the steering knuckle. For BMW rear wheel bearing service, this retaining ring helps restore a secure OE-style fit when replacing a hub or bearing assembly.

Key Features

• Inside diameter: 3.209 in.
• Outside diameter: 3.563 in.
• Width: 0.118 in.
• Made to meet or exceed OEM specifications
• Designed for generation one wheel bearing retention in the steering knuckle
• SKF CIR508 is a direct replacement-style retaining ring for rear wheel bearing service

Product Details

SKF CIR508 is a wheel bearing retaining ring built for applications that use a C-clip style retainer to hold the bearing in place inside the steering knuckle. The listed dimensions help ensure proper seating and retention during wheel bearing or hub unit replacement. This part cross-references BMW 07119934755 for the same application. For rear service on BMW 135i, BMW M3, BMW 323i, BMW 328i xDrive, BMW 335d, BMW 335i, BMW 335i xDrive, BMW 335is, BMW 328xi, and BMW 335xi, the SKF CIR508 supports a precise OE-style repair.

What It Helps Fix

• Rusted or damaged original retaining rings
• Poor bearing retention in the steering knuckle
• Improper fit after wheel bearing or hub replacement
• Noise or looseness caused by worn bearing hardware
• Repeat service issues from reusing a damaged C-clip

Installation Notes

Inspect the steering knuckle and bearing seat before installation. Replace any retaining ring that shows corrosion, distortion, or damage from removal. Confirm the inside diameter, outside diameter, and width match the original hardware before assembly. SKF CIR508 is used on rear applications for 2007-2013 BMW 135i, M3, 323i, 328i xDrive, 335d, 335i, 335i xDrive, 335is, 328xi, and 335xi.

Quality Assurance

SKF manufactures this retaining ring to meet or exceed OEM specifications and test requirements. SKF has more than 100 years of engineering and manufacturing experience, and the CIR508 is built for dependable wheel bearing retention in the listed BMW rear applications.