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National 510103 Wheel Bearing - Front
| Brand | National 510103 |
|---|---|
| Position | Front |
| Bore (Inch) | 1.772 |
| Bore (mm) | 45.000 |
| Design | Double Row Angular Contact |
| Footnote | GEN1 |
| 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 Description | Wheel Bearing |
| Series | FWDB |
| Type | E-3 |
| Width (Inch) | 1.772 |
| Width (mm) | 45.000 |
| Fits | Mazda · 5 vehicles |
OE quality. Built to meet or exceed original equipment standards.
Double-row design. Angular contact construction helps deliver smooth, lasting performance.
Premium-quality bearing. Manufactured to exacting standards for extended bearing life.
Cross-references SKF FW28, Timken WB000025 and 9M81-1215-BB for the same application. See all 4.
National 510103 Front Wheel Bearing
The National 510103 wheel bearing is built for front-wheel service on select Mazda applications, including 2009-2013 Mazda 6 models. It uses a double row angular contact design and OE-level dimensions to support smooth wheel rotation and stable hub operation.
- Front wheel bearing for 2009-2013 Mazda 6
- Double row angular contact design for load handling and rotational stability
- 45.000 mm bore, 85.000 mm outside diameter, 45.000 mm width
- OE-quality construction from National
- Cross-references SKF FW28 and Timken WB000025 for the same application
Fitment and Specifications
Fits 2009-2013 Mazda 6, front. Part number 510103 is identified as a GEN1 wheel bearing with FWDB series construction and E-3 type designation. The bearing dimensions are 1.772 in bore, 3.347 in outside diameter, and 1.772 in width, matching the listed front-wheel application for Mazda 6 service.
For buyers searching for a front wheel bearing for Mazda 6 2009-2013 or a National 510103 replacement wheel bearing, this part is specified for the front position and built to meet or exceed OE quality standards. It is a direct-fit style wheel bearing for the listed vehicle coverage and is suited to restoring proper hub support and wheel rotation.
Common Repair Symptoms
- Wheel noise or growling from the front end
- Excessive play or looseness at the wheel hub
- Rough wheel rotation during inspection
- Uneven hub support affecting driveline smoothness
- Service replacement for worn front wheel bearing assemblies
Installation Notes
Confirm the vehicle year, make, model, and front position before installation. Verify bore, outside diameter, and width against the original bearing and hub assembly to ensure proper fitment. Clean the mating surfaces and inspect related hub components for wear before pressing or installing the bearing.
Quality Assurance
National manufactures this bearing to exacting standards and states that it is designed to meet or exceed OE quality for lasting performance and extended bearing life.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2013 | Mazda | 6 | 3.7L | V6 | Front | — |
| 2012 | Mazda | 6 | 3.7L | V6 | Front | — |
| 2011 | Mazda | 6 | 3.7L | V6 | Front | — |
| 2010 | Mazda | 6 | 3.7L | V6 | Front | — |
| 2009 | Mazda | 6 | 3.7L | V6 | Front | — |
| No rows match your filter. | ||||||