Timken SET403 Differential Pinion Bearing Set - Front Inner, Rear Inner or Rear Outer
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Timken

Timken SET403 Differential Pinion Bearing Set - Front Inner, Rear Inner or Rear Outer

Brand Timken SET403
Position Front Inner, Rear Inner, and Rear Outer
10499 1.430
10499 36.32
10500 1.188
10500 30.16
Cup Outside Diameter 152.40
Cup Outside Diameter 6.000
Cone Inside Diameter 3.750
Cone Inside Diameter 95.25
Cone Radius 0.203
Cone Radius 3.17
Bearing Cup Radius 0.125
Bearing Cup Radius 5.16
Fits Ford · 13 vehicles

Tapered roller bearing set. Engineered for higher speeds, heavier loads, and longer life.

Handles radial and axial loads. Delivers durable performance in a compact space.

Replace cone and cup together. Helps maximize reliability and service life.

Cross-references National HD203 and SKF SET403 for the same application. See all 2.

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Timken SET403 Differential Pinion Bearing Set

Timken SET403 is a differential pinion bearing set built for front inner applications that demand accurate load control and consistent bearing support. It is a tapered roller bearing solution for 2006-2010 Ford Explorer and 2007-2010 Ford Explorer Sport Trac front inner differential service.

Key Features

  • Tapered roller bearing design for managing both radial and axial loads
  • Engineered for higher operating speeds, heavier loads, and extended service life
  • Timken cone and cup components for differential pinion service
  • Cup outside diameter: 6.000 in. (152.40 mm)
  • Cone inside diameter: 3.750 in. (95.25 mm)
  • Cone radius: 0.203 in. (3.17 mm)
  • Bearing cup radius: 0.125 in. (5.16 mm)

Detailed Description

Timken SET403 is a differential pinion bearing set for front inner axle service, built around Timken tapered roller bearing technology. The bearing geometry is intended to provide durable support in a compact space while handling the combined radial and axial forces found in differential operation. This part cross-references National HD203 and SKF SET403 for the same application. It is a direct-fit service option for 2006-2010 Ford Explorer and 2007-2010 Ford Explorer Sport Trac front inner differential applications.

What It Helps Address

  • Pinion bearing noise from wear or surface damage
  • Excessive play in the differential pinion support
  • Rough operation caused by degraded bearing surfaces
  • Service replacement during differential rebuilds
  • Front inner differential bearing replacement on Ford Explorer and Ford Explorer Sport Trac

Installation Notes and Tips

Replace the inner cone and outer cup together to maintain bearing geometry and service life. Verify all dimensions and application details before installation, and inspect the pinion surfaces, races, and related differential components for wear. Proper setup and preload are important during differential service, especially on Ford Explorer and Ford Explorer Sport Trac front inner applications.

Quality Assurance

Timken is recognized globally for tapered roller bearing engineering and technical support. SET403 is built to meet the demands of differential service where load capacity and dimensional accuracy matter.

Related reading

This part fits 13 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypePositionNotes
2010FordExplorer4WDFront InnerOptional Substitution To O.E.
2010FordExplorer Sport Trac4WDFront InnerOptional Substitution To O.E.
2009FordExplorer4WDFront InnerOptional Substitution To O.E.
2009FordExplorerAWDFront InnerOptional Substitution To O.E.
2009FordExplorer Sport Trac4WDFront InnerOptional Substitution To O.E.
2009FordExplorer Sport TracAWDFront InnerOptional Substitution To O.E.
2008FordExplorer4WDFront InnerOptional Substitution To O.E.
2008FordExplorerAWDFront InnerOptional Substitution To O.E.
2008FordExplorer Sport Trac4WDFront InnerOptional Substitution To O.E.
2008FordExplorer Sport TracAWDFront InnerOptional Substitution To O.E.
2007FordExplorer4WDFront InnerOptional Substitution To O.E.
2007FordExplorer Sport Trac4WDFront InnerOptional Substitution To O.E.
2006FordExplorer4WDFront InnerOptional Substitution To O.E.
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
National — HD203SKF — SET403