FAG WR0121 Wheel Bearing Retaining Ring - Front or Rear

Wheel Bearing Retaining Ring for Subaru and Nissan

The FAG WR0121 wheel bearing retaining ring is a precision driveline hardware component used to secure the wheel bearing assembly in place during front-end service. With exact dimensional sizing and OE-style application coverage, it supports clean, accurate repairs on Subaru Forester, Impreza, Baja, Legacy, and Outback models, plus select Nissan Maxima front applications.

• Wheel bearing retaining ring for front axle service
• Inside diameter: 0.157 in / 4 mm
• Outside diameter: 3.008 in / 76.4 mm
• Width: 0.098 in / 2.5 mm
• Fits front applications on Subaru and Nissan vehicles
• FAG WR0121 cross-references SKF CIR176 and Timken RET176 for the same application

Fitment and Application Details

Compatible with front wheel bearing service on 1998-2008 Subaru Forester, front; 1993-2007 Subaru Impreza, front; 2003-2006 Subaru Baja, front; 1990-2004 Subaru Legacy, front; 2000-2004 Subaru Outback, front; and 1985-1988 Nissan Maxima, front. The FAG WR0121 is sized for applications that require a retaining ring with a 4 mm inside diameter and 76.4 mm outside diameter.

As a chassis-focused supplier, FAG provides retaining clips and related hardware used in professional repair work. This part number, WR0121, is built for front wheel bearing retention where correct ring dimensions are critical to assembly security and service accuracy.

What This Part Helps Address

• Loose or displaced wheel bearing retention hardware
• Front hub or bearing service requiring a replacement retaining ring
• Incorrect ring sizing during Subaru Forester, Impreza, Baja, Legacy, or Outback repairs
• Front-end reassembly issues after bearing replacement
• Wear-related service needs on select Nissan Maxima front applications

Installation Notes and Quality Assurance

Verify inside diameter, outside diameter, and width against the original ring before installation. Clean the groove and surrounding bore thoroughly so the retaining ring seats fully and evenly. Because this is a precision hardware component, proper fitment on the front axle is essential for reliable bearing retention. FAG supplies chassis repair components for professional service applications, and WR0121 is specified with exact dimensional data to support accurate replacement selection.