FAG 102743 Wheel Bearing - Front

Front Wheel Bearing for Mercedes-Benz Applications

FAG 102743 is a front wheel bearing built as a compact, sealed bearing unit with preset internal clearance and lifetime lubrication. It is engineered for Mercedes-Benz models that need stable wheel support, smooth rotation, and low-maintenance operation in daily driving and demanding road conditions.

Fits 2007-2018 Mercedes-Benz S550, front; fits 2008-2013 Mercedes-Benz S550, front; fits 2009-2014 Mercedes-Benz CL550, front; fits 2009-2014 Mercedes-Benz C300, front; fits 2010-2016 Mercedes-Benz E350, front; fits 2010-2015 Mercedes-Benz GLK350, front; fits 2012-2018 Mercedes-Benz CLS550, front; fits 2012-2015 Mercedes-Benz C350, front; fits 2012-2013 Mercedes-Benz S350, front; fits 2013-2015 Mercedes-Benz GLK250, front; fits 2014-2017 Mercedes-Benz CLS63 AMG S, front; fits 2014-2017 Mercedes-Benz E250, front; fits 2014-2016 Mercedes-Benz E63 AMG, front; fits 2015-2017 Mercedes-Benz CLS400, front; fits 2016-2017 Mercedes-Benz E400, front; fits 2016 Mercedes-Benz E550, front; fits 2014-2016 Mercedes-Benz E550, front; fits 2014 Mercedes-Benz CLS63 AMG, front; fits 2008 Mercedes-Benz C300, front from production date 12/3/08; fits 2007 Mercedes-Benz S550, front from production date 12/10/07.

• Inside diameter: 54 mm (2.126 in)
• Outside diameter: 92 mm (3.622 in)
• Height: 50 mm (1.969 in)
• First-generation wheel bearing design with sealed, for-life lubrication
• Preset bearing clearance for consistent operation
• Angular contact ball bearing construction for front wheel use
• Cross-reference part numbers include SKF FW35 and Timken WB000043

Detailed Product Overview

This FAG wheel bearing 102743 is a first-generation bearing unit designed around a compact, rugged layout for front axle service. The sealed construction and lifetime lubrication reduce routine maintenance needs, while the angular contact ball bearing design supports smooth wheel rotation and dependable load handling. With its 54 mm inside diameter, 92 mm outside diameter, and 50 mm height, this bearing is specified for a range of Mercedes-Benz sedan and crossover applications, including Mercedes-Benz E350, CLS550, and GLK350 front wheel service.

For buyers searching for a Mercedes-Benz front wheel bearing replacement, FAG 102743 matches a broad set of OE-style applications across the C-Class, E-Class, CLS-Class, S-Class, and GLK models listed above. The part number 102743 is also referenced by National 510118, SKF FW35, and Timken WB000043 for the same application.

Common Problems This Part Addresses

• Wheel noise from a worn or rough front bearing
• Excessive play or looseness at the wheel hub area
• Vibration or humming that increases with road speed
• Loss of smooth wheel rotation during driving
• Service issues caused by a bearing that no longer retains proper lubrication or sealing

Installation Notes and Tips

Confirm the vehicle’s year, model, and front axle application before ordering, especially on 2007-2008 production-date-specific Mercedes-Benz fitments. Inspect the hub, knuckle, and related mounting surfaces for wear or damage before installation, and verify that the replacement bearing matches the original dimensions and application. Proper press-fit handling and correct torque procedures are important for wheel bearing service.

Quality Assurance

FAG is a Schaeffler brand known for precision bearing engineering and OE-level driveline components. Part number 102743 is manufactured as a sealed, maintenance-free wheel bearing unit with preset clearance for consistent performance in the listed Mercedes-Benz front applications.