Timken FC66998 Drive Axle Shaft Pilot Bearing - Front, Front Outer, Rear or Rear Inner
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Timken

Timken FC66998 Drive Axle Shaft Pilot Bearing - Front, Front Outer, Rear or Rear Inner

Brand Timken FC66998
Position Front
Fits Ford, Lincoln, Mercury, and Avanti · 264 vehicles

OE supplier heritage. Timken has supplied the automotive industry for over 100 years.

OE performance requirements. Meets or exceeds bearing performance requirements.

Precision-tested design. Timken tests the design, materials, and process for consistent performance.

Cross-references SKF FC66998 and BH4015 for the same application. See all 2.

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Timken FC66998 Drive Axle Shaft Pilot Bearing

The Timken FC66998 drive axle shaft pilot bearing is built for driveline service where precise fit and consistent rotation matter. With a 1.575 in. inside diameter, 1.969 in. outside diameter, and 0.600 in. width, it matches the dimensional requirements used across a wide range of Ford, Lincoln, and Mercury rear and front axle applications.

Timken validates bearing design, materials, and manufacturing processes to support consistent performance. This FC66998 bearing is an OE-style replacement for vehicles such as the Ford F-150, Ford Expedition, and Lincoln Navigator, including applications with independent front suspension and independent rear suspension configurations.

  • Inside diameter: 1.575 in. / 40.00 mm
  • Outside diameter: 1.969 in. / 50.01 mm
  • Width: 0.600 in. / 15.24 mm
  • Drive axle shaft pilot bearing for driveline and axle service
  • OE supplier heritage from Timken with application-focused engineering
  • Cross-reference: SKF FC66998

Detailed Fitment and Application

Use the Timken FC66998 when servicing axle and differential assemblies that call for this bearing size and configuration. It is listed for front, rear, front outer, and rear inner positions across multiple Ford F-150, Ford Expedition, Ford Mustang, Lincoln Navigator, Lincoln Aviator, Lincoln LS, Mercury Mountaineer, and related applications. This part number is also referenced for select 8.8 in. ring gear and independent rear suspension setups.

  • Fits 2004-2022 Ford F-150, front
  • Fits 1997-2003 Ford F-150, front
  • Fits 2000-2003 Ford F-150, rear
  • Fits 2004-2022 Ford Expedition, front
  • Fits 2000-2005 Ford Expedition, front outer
  • Fits 2005-2018 Ford Expedition, rear
  • Fits 2003-2004 Ford Expedition, rear
  • Fits 2015-2022 Ford Mustang, rear
  • Fits 1999-2002 Ford Mustang, rear
  • Fits 2003-2022 Lincoln Navigator, rear
  • Fits 2003-2019 Lincoln Navigator, front
  • Fits 2003-2014 Lincoln Navigator, front outer
  • Fits 1998-1999 Lincoln Navigator, front outer
  • Fits 2000-2002 Lincoln Navigator, front outer
  • Fits 2002-2010 Ford Explorer, rear
  • Fits 2007-2010 Ford Explorer Sport Trac, rear
  • Fits 2006-2010 Mercury Mountaineer, rear
  • Fits 2006-2008 Lincoln Mark LT, front
  • Fits 2002-2008 Mercury Mountaineer, front outer
  • Fits 2000-2006 Lincoln LS, rear
  • Fits 2000-2006 Lincoln LS, rear inner
  • Fits 2002-2005 Ford Thunderbird, rear
  • Fits 2003-2005 Lincoln Aviator, front outer
  • Fits 2003-2005 Lincoln Aviator, rear
  • Fits 2003-2005 Lincoln Navigator, rear
  • Fits 2002-2005 Mercury Mountaineer, rear
  • Fits 2004 Ford F-150 Heritage, front
  • Fits 2004 Ford F-150 Heritage, rear
  • Fits 2003-2004 Ford Mustang, N/A
  • Fits 2002 Ford E-150 Econoline, rear
  • Fits 2002 Ford E-150 Econoline Club Wagon, rear
  • Fits 1997-1999 Ford Expedition, front outer
  • Fits 1993-1998 Lincoln Mark VIII, rear
  • Fits 1989-1998 Lincoln Town Car, rear
  • Fits 1980-1997 Mercury Cougar, rear
  • Fits 1989-1992 Lincoln Mark VII, rear
  • Fits 1984-1988 Lincoln Mark VII, rear
  • Fits 1984-1986 Lincoln Continental, rear
  • Fits 1984-1986 Lincoln Town Car, rear

What This Bearing Helps Address

  • Axle shaft support noise caused by worn pilot bearing surfaces
  • Excess driveline play from a deteriorated bearing
  • Rough rotation in rear axle or front outer axle locations
  • Service needs on independent rear suspension and independent front suspension setups
  • Replacement during differential or axle rebuilds on Ford and Lincoln platforms

Installation Notes and Tips

Confirm the bearing dimensions and axle position before installation, especially on applications with front outer, rear inner, or independent suspension notes. Clean the bore and inspect the mating shaft and housing for wear, scoring, or contamination before pressing in the new bearing. For Ford F-150, Ford Expedition, and Lincoln Navigator applications, verify the ring gear and suspension configuration against the vehicle’s service information.

Quality Assurance

Timken tests bearing design, materials, and manufacturing processes to support consistent performance. The brand has supplied original equipment to the automotive industry for more than 100 years, and this FC66998 bearing is specified to meet or exceed OE bearing performance requirements.

This part fits 264 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelDrive TypePositionNotes
2022FordExpedition—4WDFront—
2022FordF-150—4WDFront—
2022FordMustang——Rear—
2022LincolnNavigator——Rear—
2021FordExpedition—4WDFront—
2021FordF-150—4WDFront—
2021FordMustang——Rear—
2021LincolnNavigator——Rear—
2020FordExpedition—4WDFront—
2020FordF-150—4WDFront—
2020FordMustang——Rear—
2020LincolnNavigator——Rear—
2019FordExpedition—4WDFront—
2019FordF-150—4WDFront—
2019FordMustang——Rear—
2019LincolnNavigator—4WDFront—
2019LincolnNavigator——Rear—
2018FordExpedition—4WDFront—
2018FordExpedition——Rear—
2018FordF-150—4WDFront—
2018FordMustang——Rear—
2018LincolnNavigator—4WDFront—
2018LincolnNavigator——Rear—
2017FordExpedition—4WDFront—
2017FordExpedition——Rear—
2017FordF-150—4WDFront—
2017FordMustang——Rear—
2017LincolnNavigator—4WDFront—
2017LincolnNavigator——Rear—
2016FordExpedition—4WDFront—
2016FordExpedition——Rear—
2016FordF-150—4WDFront—
2016FordMustang——Rear—
2016LincolnNavigator—4WDFront—
2016LincolnNavigator——Rear—
2015FordExpedition—4WDFront—
2015FordExpedition——Rear—
2015FordF-150—4WDFront—
2015FordMustang——Rear—
2015LincolnNavigator—4WDFront—
2015LincolnNavigator——Rear—
2014FordExpedition—4WDFront—
2014FordExpedition——Rear—
2014FordF-150—4WDFront—
2014LincolnNavigator—4WDFront—
2014LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2014LincolnNavigator——Rear—
2013FordExpedition—4WDFront—
2013FordExpedition——Rear—
2013FordF-150—4WDFront—
2013LincolnNavigator—4WDFront—
2013LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2013LincolnNavigator——Rear—
2012FordExpedition—4WDFront—
2012FordExpedition——Rear—
2012FordF-150—4WDFront—
2012FordF-150—AWDFront—
2012LincolnNavigator—4WDFront—
2012LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2012LincolnNavigator——Rear—
2011FordExpedition—4WDFront—
2011FordExpedition——Rear—
2011FordF-150—4WDFront—
2011FordF-150—AWDFront—
2011LincolnNavigator—4WDFront—
2011LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2011LincolnNavigator——Rear—
2010FordExpedition—4WDFront—
2010FordExpedition——Rear—
2010FordExplorer——Rear—
2010FordExplorer Sport Trac——Rear—
2010FordF-150—4WDFront—
2010FordF-150—AWDFront—
2010LincolnNavigator—4WDFront—
2010LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2010LincolnNavigator——Rear—
2010MercuryMountaineer——Rear—
2009FordExpedition—4WDFront—
2009FordExpedition——Rear—
2009FordExplorer——Rear—
2009FordExplorer Sport Trac——Rear—
2009FordF-150—4WDFront—
2009LincolnNavigator—4WDFront—
2009LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2009LincolnNavigator——Rear—
2009MercuryMountaineer——Rear—
2008FordExpedition—4WDFront—
2008FordExpedition——Rear—
2008FordExplorer——Rear—
2008FordExplorer Sport Trac——Rear—
2008FordF-150—4WDFront—
2008FordF-150—AWDFront—
2008LincolnMark LT—4WDFront—
2008LincolnNavigator—4WDFront—
2008LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2008LincolnNavigator——Rear—
2008MercuryMountaineer—AWDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2008MercuryMountaineer——Rear—
2007FordExpedition—4WDFront—
2007FordExpedition——Rear—
2007FordExplorer——Rear—
2007FordExplorer Sport Trac——Rear—
2007FordF-150—4WDFront—
2007LincolnMark LT—4WDFront—
2007LincolnNavigator—4WDFront—
2007LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2007LincolnNavigator——Rear—
2007MercuryMountaineer—AWDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2007MercuryMountaineer——Rear—
2006FordExpedition—4WDFront—
2006FordExpedition——Rear—
2006FordExplorer——Rear—
2006FordF-150—4WDFront—
2006LincolnLS——Rear—
2006LincolnLS——Rear Inner8.8 in. Ring Gear - Independent Rear Suspension
2006LincolnMark LT—4WDFront—
2006LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2006LincolnNavigator—4WDFront—
2006LincolnNavigator——Rear—
2006MercuryMountaineer—AWDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2006MercuryMountaineer——Rear—
2005FordExpedition—4WDFront Outer—
2005FordExpedition——Rear—
2005FordExplorer——Rear—
2005FordF-150—4WDFront—
2005FordThunderbird——Rear—
2005LincolnAviator—AWDFront Outer—
2005LincolnAviator——Rear8.8 in. Ring Gear - Independent Rear Suspension
2005LincolnLS——Rear—
2005LincolnLS——Rear Inner8.8 in. Ring Gear - Independent Rear Suspension
2005LincolnNavigator—RWDRearIndependant Rear Suspension
2005LincolnNavigator—4WDRearIndependant Rear Suspension
2005LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2005LincolnNavigator—4WDFront—
2005LincolnNavigator——Rear—
2005MercuryMountaineer—AWDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2005MercuryMountaineer——Rear8.8 in. Ring Gear - Independent Rear Suspension
2004FordExpedition—4WDFront Outer—
2004FordExpedition——RearDifferential Pinion Race for 8.8 inch ring gear.
2004FordExpedition——RearFits 9.75" Ring Gear for Differential Pinion Bearing.
2004FordExplorer——Rear—
2004FordF-150—4WDFront—
2004FordF-150 Heritage—4WDFront8.8 in. Ring Gear - Independent. Front Suspension
2004FordF-150 Heritage——RearDifferential Pinion Race for 8.8 inch ring gear.
2004FordMustangSVT Cobra—N/A—
2004FordThunderbird——Rear—
2004LincolnAviator—AWDFront Outer—
2004LincolnAviator——Rear8.8 in. Ring Gear - Independent Rear Suspension
2004LincolnLS——Rear—
2004LincolnLS——Rear Inner8.8 in. Ring Gear - Independent Rear Suspension
2004LincolnNavigator—RWDRearIndependant Rear Suspension
2004LincolnNavigator—4WDRearIndependant Rear Suspension
2004LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2004LincolnNavigator—4WDFront—
2004LincolnNavigator——Rear—
2004MercuryMountaineer—AWDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2004MercuryMountaineer——Rear8.8 in. Ring Gear - Independent Rear Suspension
2003FordExpedition—4WDFront Outer—
2003FordExpedition——RearDifferential Pinion Race for 8.8 inch ring gear.
2003FordExpedition——RearFits 9.75" Ring Gear for Differential Pinion Bearing.
2003FordExplorer——Rear—
2003FordF-150—4WDFront8.8 in. Ring Gear - Independent. Front Suspension
2003FordF-150——RearDifferential Pinion Race for 8.8 inch ring gear.
2003FordMustangSVT Cobra—N/A—
2003FordMustangSVT Cobra 10th Anniversary—N/A—
2003FordThunderbird——Rear—
2003LincolnAviator—AWDFront Outer—
2003LincolnAviator——Rear8.8 in. Ring Gear - Independent Rear Suspension
2003LincolnLS——Rear—
2003LincolnLS——Rear Inner8.8 in. Ring Gear - Independent Rear Suspension
2003LincolnNavigator—RWDRearIndependant Rear Suspension
2003LincolnNavigator—4WDRearIndependant Rear Suspension
2003LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2003LincolnNavigator—4WDFront—
2003LincolnNavigator——Rear—
2003MercuryMountaineer—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2003MercuryMountaineer—AWDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2003MercuryMountaineer——Rear8.8 in. Ring Gear - Independent Rear Suspension
2002FordE-150 Econoline——RearDifferential Pinion Race for 8.8 inch ring gear.
2002FordE-150 Econoline Club Wagon——RearDifferential Pinion Race for 8.8 inch ring gear.
2002FordExpedition—4WDFront Outer—
2002FordExplorer——Rear—
2002FordF-150—4WDFront8.8 in. Ring Gear - Independent. Front Suspension
2002FordF-150——RearDifferential Pinion Race for 8.8 inch ring gear.
2002FordMustang——Rear—
2002FordThunderbird——Rear—
2002LincolnLS——Rear Inner8.8 in. Ring Gear - Independent Rear Suspension
2002LincolnLS——Rear—
2002LincolnNavigator—4WDFront Outer—
2002MercuryMountaineer—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2002MercuryMountaineer—AWDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
2002MercuryMountaineer——Rear8.8 in. Ring Gear - Independent Rear Suspension
2001FordExpedition—4WDFront Outer—
2001FordF-150—4WDFront8.8 in. Ring Gear - Independent. Front Suspension
2001FordF-150——RearDifferential Pinion Race for 8.8 inch ring gear.
2001FordMustangSVT Cobra—Rear—
2001LincolnLS——Rear Inner8.8 in. Ring Gear - Independent Rear Suspension
2001LincolnLS——Rear—
2001LincolnNavigator—4WDFront Outer—
2000FordExpedition—4WDFront Outer—
2000FordF-150—4WDFront8.8 in. Ring Gear - Independent. Front Suspension
2000FordF-150——RearDifferential Pinion Race for 8.8 inch ring gear.
2000FordMustangSVT Cobra R—Rear—
2000LincolnLS——Rear Inner8.8 in. Ring Gear - Independent Rear Suspension
2000LincolnLS——Rear—
2000LincolnNavigator—4WDFront Outer—
1999FordExpedition—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
1999FordF-150—4WDFront8.8 in. Ring Gear - Independent. Front Suspension
1999FordMustangSVT Cobra—Rear—
1999LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
1998FordExpedition—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
1998FordF-150—4WDFront8.8 in. Ring Gear - Independent. Front Suspension
1998LincolnMark VIII——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1998LincolnNavigator—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
1998LincolnTown Car——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1997FordExpedition—4WDFront Outer8.8 in. Ring Gear - Independent. Front Suspension
1997FordF-150—4WDFront8.8 in. Ring Gear - Independent. Front Suspension
1997LincolnMark VIII——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1997LincolnTown Car——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1997MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1996LincolnMark VIII——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1996LincolnTown Car——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1996MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1995LincolnMark VIII——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1995LincolnTown Car——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1995MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1994LincolnMark VIII——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1994LincolnTown Car——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1994MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1993LincolnMark VIII——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1993LincolnTown Car——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1993MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1992LincolnMark VII——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1992LincolnTown Car——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1992MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1991LincolnMark VII——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1991LincolnTown Car——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1991MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1990LincolnMark VII——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1990LincolnTown Car——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1990MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1989LincolnMark VII——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1989LincolnTown Car——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1989MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1988LincolnMark VII——RearIndependent Rear Suspension 7.5 in. Ring Gear
1988MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1987LincolnMark VII——RearIndependent Rear Suspension 7.5 in. Ring Gear
1987MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1986LincolnContinental——RearIndependent Rear Suspension 7.5 in. Ring Gear
1986LincolnMark VII——RearIndependent Rear Suspension 7.5 in. Ring Gear
1986LincolnTown Car——RearIndependent Rear Suspension 7.5 in. Ring Gear
1986MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1985LincolnContinental——RearIndependent Rear Suspension 7.5 in. Ring Gear
1985LincolnMark VII——RearIndependent Rear Suspension 7.5 in. Ring Gear
1985LincolnTown Car——RearIndependent Rear Suspension 7.5 in. Ring Gear
1985MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1984LincolnContinental——RearIndependent Rear Suspension 7.5 in. Ring Gear
1984LincolnMark VII——RearIndependent Rear Suspension 7.5 in. Ring Gear
1984LincolnTown Car——RearIndependent Rear Suspension 7.5 in. Ring Gear
1984MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1983MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1982MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1981MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
1980MercuryCougar——RearIndependent Rear Suspension 7.5 in., 8.8 in. Ring Gear
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
SKF — FC66998BH4015