FAG 805394C Wheel Bearing and Hub Assembly - Front or Rear

FAG 805394C Wheel Bearing Hub Assembly

The FAG 805394C wheel bearing and hub assembly is a compact, sealed unit built for precise wheel support and consistent rotation. With preset bearing clearance and lifetime lubrication, it is engineered for front and rear Porsche applications that demand stable performance and low-maintenance operation.

Key Features

• Wheel bearing and hub assembly for driveline and axle service
• Inside diameter: 42 mm (1.654 in)
• Outside diameter: 80 mm (3.15 in)
• Height: 42 mm (1.654 in)
• Angular contact ball bearing design for front and rear wheel applications
• Sealed and lubricated for life, with no routine maintenance required
• Direct replacement reference: FAG 805394C

Fitment Details

• Fits 2015-2024 Porsche 911, front; outer diameter outer ring 80 mm.
• Fits 2011 Porsche 911, front; outer diameter outer ring 80 mm.
• Fits 2004-2005 Porsche 911, front; outer diameter outer ring 80 mm.
• Fits 2017-2023 Porsche 718 Boxster, front; outer diameter outer ring 80 mm.
• Fits 2017-2023 Porsche 718 Cayman, front; outer diameter outer ring 80 mm.
• Fits 2015-2016 Porsche Boxster, rear; outer diameter outer ring 80 mm.
• Fits 2016 Porsche Cayman, rear; outer diameter outer ring 80 mm.
• Fits 2012-2014 Porsche 911, front; Wheel Bearing and Hub Assembly - Global Number 805394C.
• Fits 2006-2010 Porsche 911, front; Wheel Bearing and Hub Assembly - Global Number 805394C.
• Fits 2013-2014 Porsche Boxster, rear; Wheel Bearing and Hub Assembly - Global Number 805394C.
• Fits 2014 Porsche Cayman, rear; Wheel Bearing and Hub Assembly - Global Number 805394C.
• Fits 2012 Porsche Boxster, front; Wheel Bearing and Hub Assembly - Global Number 805394C.
• Fits 2006-2010 Porsche Boxster, front; Wheel Bearing and Hub Assembly - Global Number 805394C.
• Fits 2012 Porsche Cayman, front; Wheel Bearing and Hub Assembly - Global Number 805394C.
• Fits 2006-2010 Porsche Cayman, front; Wheel Bearing and Hub Assembly - Global Number 805394C.
• Fits 2011 Porsche Cayman, front; outer diameter outer ring 80 mm.

Product Description

Built for Porsche 911, 718 Boxster, 718 Cayman, Boxster, and Cayman applications, the FAG 805394C combines a compact bearing package with sealed lubrication and preset clearance for consistent wheel support. The angular contact ball bearing construction is suited to demanding front and rear wheel service where accurate fit and stable operation matter. This part cross-references National 513180 for the same application.

Common Service Issues

• Wheel bearing noise or growling from the front or rear axle
• Excess wheel play caused by worn bearing surfaces
• Rough wheel rotation during inspection or road testing
• Seal wear that allows contamination into the bearing unit
• Hub-related vibration or instability at speed

Installation Notes and Tips

Confirm the vehicle position and outer ring diameter before installation, since this assembly is used on both front and rear Porsche applications. Inspect the hub, knuckle, and mating surfaces for wear or damage, and verify that the replacement matches the original bearing dimensions and application notes. FAG 805394C is a sealed unit, so no routine bearing repacking is required after installation.

Quality Assurance

FAG manufactures first-generation wheel bearing units with defined bearing clearance, lifetime sealing, and for-life lubrication. The FAG 805394C is designed as a durable OE-style service part for Porsche wheel bearing replacement.