HomeNational 510103 Wheel Bearing - Front
Part #: 510103

National 510103 Wheel Bearing - Front

Front
5 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mazda, 6
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Overview of National 510103 Wheel Bearing for Mazda 6

The National 510103 wheel bearing is engineered for precise fitment on Mazda 6 models, providing reliable driveline performance. Designed with a double row angular contact design, this wheel bearing ensures durability and smooth operation under various driving conditions.

  • Double row angular contact design for enhanced load capacity
  • Inner race bore diameter of 1.772 inches (45 mm)
  • Outer race outside diameter of 3.347 inches (85 mm)
  • Width of 1.772 inches (45 mm) for consistent fitment
  • Compatible specifically with Mazda 6 vehicles

Technical Specifications and Design Features

The National 510103 wheel bearing features a double row angular contact design, which allows it to handle both radial and axial loads effectively. The inner race bore measures 1.772 inches (45 mm), matching the precise dimensions required for Mazda 6 wheel hubs. The outer race outside diameter is 3.347 inches (85 mm), with a consistent width of 1.772 inches (45 mm) for both inner and outer races. This E-3 type bearing from the Fwdb series is built to meet the specific tolerances and performance standards necessary for driveline and axle applications.

Applications and Problem Solving

This wheel bearing is intended for use in the front driveline and axle assembly of Mazda 6 vehicles. It addresses common issues such as:

  • Excessive wheel play or looseness
  • Unusual noise or grinding from the wheel area
  • Uneven tire wear caused by bearing failure
  • Reduced steering stability and handling performance
  • Potential wheel hub overheating due to bearing wear

Installation Notes and Tips

When installing the National 510103 wheel bearing, ensure the hub and spindle surfaces are clean and free of debris. Proper torque specifications should be followed to avoid premature bearing failure. It is recommended to use appropriate tools for pressing the bearing into place to maintain the integrity of the double row angular contact design. Verify fitment compatibility with Mazda 6 models before installation.

Quality Assurance and Warranty

National wheel bearings are manufactured to meet industry standards for durability and performance. The 510103 part number undergoes rigorous quality control to ensure dimensional accuracy and material strength. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.

BrandNational
Part Number510103
Bore (Inch)1.772
Bore (mm)45.000
DesignDouble Row Angular Contact
FootnoteGEN1
Inner Race Bore (Inch)1.772
Inner Race Bore (MM)45.000
Inner Race Width (Inch)1.772
Inner Race Width (MM)45.000
Outer Race Outside Diameter (Inch)3.347
Outer Race Outside Diameter (MM)85.000
Outer Race Width (Inch)1.772
Outer Race Width (MM)45.000
Outside Diameter (Inch)3.347
Outside Diameter (mm)85.000
Part DescriptionWheel Bearing
SeriesFWDB
TypeE-3
Width (Inch)1.772
Width (mm)45.000

This part fits 5 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2013Mazda63.7LV6Front
2012Mazda63.7LV6Front
2011Mazda63.7LV6Front
2010Mazda63.7LV6Front
2009Mazda63.7LV6Front

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

9M81-1215-BBFW28GS4H-33-047WB000025

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.