model name / number:Wheel Bearing And Hub Assembly
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The 515003 (often cross-referenced as GSP #116003 or WH515003) is a standard automotive part number for a Front Wheel Hub and Bearing Assembly. It is primarily designed for Ford, Mercury, and Mazda trucks and SUVs from the mid-1990s to early 2000s.
Compatible Vehicles
This part is most commonly used for the following models:
Ford Explorer: 1995–2001
Ford Explorer Sport / Sport Trac: 2001–2003 (Sport) / 2001–2005 (Sport Trac)
Ford Ranger: 2001–2009 (typically for 4WD models with round ABS connectors)
Mercury Mountaineer: 1997–2001
Mazda B3000 / B4000: 2001–2002 (B3000) / 2001–2009 (B4000)
Technical Specifications
Position: Front (Driver or Passenger side)
Lugs: 5-bolt pattern
Flange: 3-bolt triangular mounting flange
ABS System: Includes an integrated ABS tone ring (typically 54 teeth) and sensor with a round connector
Spline Count: 27 splines
Interchangeable Part Numbers
While "GSP" often uses their own numbering system (e.g., 116003), the industry standard number is 515003. Other brands use the following designations for the same part:
Moog: 515003 / 515052
Timken: SP450200
SKF: BR930252
Detroit Axle: 515003.DA
Mevotech: H515003
Where to Buy
You can find this assembly at major retailers and specialty parts sites:
Amazon (Various brands like KUSATEC or Detroit Axle)
PartsGeek (Lists GSP and other budget to premium options)
eBay Motors (Useful for finding GSP-specific listings)