Timken HM89446 Differential Pinion Bearing - Rear, Rear Inner or Rear Outer
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Timken

Timken HM89446 Differential Pinion Bearing - Rear, Rear Inner or Rear Outer

Brand Timken HM89446
Position Rear Inner, Rear Outer, and Rear
Fits Aston Martin, BMW, Buick, Chevrolet, Chrysler, Dodge, Jaguar, Mercury, Oldsmobile, and Pontiac · 214 vehicles

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

Radial and axial load capacity. Delivers durable performance in a compact space.

Cone and cup set. Replace both together to maximize reliability and service life.

Cross-references National HM89446 for the same application. See all 1.

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Timken HM89446 Differential Pinion Bearing

Timken HM89446 is a differential pinion bearing for driveline and axle service. It is built as a tapered roller bearing component for applications that need to manage both radial and axial loads in a compact space.

Use this bearing when servicing rear differential pinion locations on select BMW, Jaguar, Chrysler, Dodge, Pontiac, Buick, Oldsmobile, Mercury, Aston Martin, and Chevrolet applications. The HM89446 part number is also cross-referenced by National HM89446 for the same application.

Key Features

  • Tapered roller bearing construction for differential pinion service
  • Handles radial and axial loads in one bearing design
  • Used in rear inner and rear outer differential positions, depending on vehicle application
  • Timken engineering support and bearing manufacturing expertise
  • Fits a wide range of classic and late-model driveline applications

Detailed Description

Timken HM89446 is a differential pinion bearing used in rear axle and driveline assemblies where precise load control and smooth rotation are required. This bearing is listed for applications such as 1999-2009 Jaguar XJ8 rear outer, 1995-2009 Jaguar XJR rear outer, 2003-2004 BMW 320i rear inner, 1996-2000 BMW Z3 rear inner, 1987-1990 Chevrolet Camaro rear inner, and 1985-1991 Pontiac Firebird rear inner. It also appears in many Chrysler, Dodge, Buick, Oldsmobile, and Mercury rear axle applications.

Timken tapered roller bearing components are engineered for durability and consistent performance in compact driveline packaging. For reliable differential service, the cone and cup should be replaced together.

Common Repair Uses

  • Rear differential noise during acceleration or deceleration
  • Pinion bearing wear found during axle teardown
  • Excessive play or roughness in the differential pinion assembly
  • Service on BMW 320i, BMW Z3, or Jaguar XJ8 rear axle assemblies
  • Restoration or repair of classic Chrysler, Dodge, Pontiac, and Buick rear ends

Installation Notes and Tips

Verify the axle and pinion specifications before ordering, including ring gear size, pinion shaft outside diameter, axle type, and rear inner or rear outer position. This bearing is used in different applications across BMW 318i, BMW 318is, BMW 318ti, BMW 323i, BMW 323Ci, Jaguar XJS, Jaguar XJ6, and Jaguar XJ12 platforms, so matching the exact differential setup is important. Replace the matching cone and cup together during installation and inspect the pinion seal, races, and related wear surfaces at the same time.

Quality Assurance

Timken is a recognized global leader in tapered roller bearings, with product engineering focused on load capacity, durability, and application support. HM89446 is built to Timken bearing standards for differential service.

This part fits 214 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2009JaguarXJ8——Rear Outer—
2009JaguarXJR——Rear Outer—
2008JaguarXJ8——Rear Outer—
2008JaguarXJR——Rear Outer—
2007JaguarXJ8——Rear Outer—
2007JaguarXJR——Rear Outer—
2006JaguarXJ8——Rear Outer—
2006JaguarXJR——Rear Outer—
2005JaguarXJ8——Rear Outer—
2005JaguarXJR——Rear Outer—
2004BMW320i——Rear Inner—
2004JaguarXJ8——Rear Outer—
2004JaguarXJR——Rear Outer—
2003BMW320i——Rear Inner—
2003JaguarXJ8——Rear Outer—
2003JaguarXJR——Rear Outer—
2002JaguarXJ8——Rear Outer—
2002JaguarXJR——Rear Outer—
2001BMW320i——Rear Inner—
2001JaguarXJ8——Rear Outer—
2001JaguarXJR——Rear Outer—
2000BMW323Ci——Rear Inner—
2000BMW323i——Rear Inner—
2000BMWZ3——Rear Inner—
2000JaguarXJ8——Rear Outer—
2000JaguarXJR——Rear Outer—
1999BMW318ti——Rear Inner—
1999BMW323i——Rear Inner—
1999BMW323is——Rear Inner—
1999BMWZ3——Rear Inner—
1999JaguarXJ8——Rear Outer—
1999JaguarXJR——Rear Outer—
1998BMW318i——Rear Inner—
1998BMW318ti——Rear Inner—
1998BMW323i——Rear Inner—
1998BMW323is——Rear Inner—
1998BMWZ3——Rear Inner—
1998JaguarXJR——Rear Outer—
1997BMW318i——Rear Inner—
1997BMW318is——Rear Inner—
1997BMW318ti——Rear Inner—
1997BMWZ3——Rear Inner—
1997JaguarXJR——Rear Outer—
1996BMW318i——Rear Inner—
1996BMW318is——Rear Inner—
1996BMW318ti——Rear Inner—
1996BMWZ3——Rear Inner—
1996JaguarXJR——Rear Outer—
1996JaguarXJS——Rear Outer—
1995BMW318i——Rear Inner—
1995BMW318is——Rear Inner—
1995BMW318ti——Rear Inner—
1995JaguarXJR——Rear Outer—
1995JaguarXJS——Rear Outer—
1994BMW318i——Rear Inner—
1994BMW318is——Rear Inner—
1994JaguarXJS——Rear Outer—
1993BMW318i——Rear Inner—
1993BMW318is——Rear Inner—
1993JaguarXJS——Rear Outer—
1992Aston MartinVirage——Rear Inner—
1992BMW318i——Rear Inner—
1992BMW318is——Rear Inner—
1992JaguarXJS——Rear Outer—
1991Aston MartinVirage——Rear Inner—
1991BMW318i——Rear Inner—
1991BMW318is——Rear Inner—
1991JaguarXJS——Rear Outer—
1991PontiacFirebird——Rear InnerFits 7.75 in. Ring Gear Differential Bearing
1990Aston MartinVirage——Rear Inner—
1990ChevroletCamaro——Rear InnerFits 7.75 in. Ring Gear Differential Bearing
1990JaguarXJS——Rear Outer—
1990PontiacFirebird——Rear InnerFits 7.75 in. Ring Gear Differential Bearing
1989ChevroletCamaro——Rear InnerFits 7.75 in. Ring Gear Differential Bearing
1989JaguarXJS——Rear Outer—
1989PontiacFirebird——Rear InnerFits 7.75 in. Ring Gear Differential Bearing
1988Aston MartinZagato——Rear Inner—
1988ChevroletCamaro——Rear InnerFits 7.75 in. Ring Gear Differential Bearing
1988JaguarXJ6——Rear Outer—
1988JaguarXJS——Rear Outer—
1988PontiacFirebird——Rear InnerFits 7.75 in. Ring Gear Differential Bearing
1987Aston MartinZagato——Rear Inner—
1987ChevroletCamaro——Rear InnerFits 7.75 in. Ring Gear Differential Bearing
1987JaguarXJ6——Rear Outer—
1987JaguarXJS——Rear Outer—
1987PontiacFirebird——Rear InnerFits 7.75 in. Ring Gear Differential Bearing
1986JaguarXJ6——Rear Outer—
1986JaguarXJS——Rear Outer—
1986PontiacFirebird——Rear InnerFits 7.75 in. Ring Gear Differential Bearing
1985BMW318i——Rear Inner—
1985JaguarXJ6——Rear Outer—
1985JaguarXJS——Rear Outer—
1985PontiacFirebird——Rear InnerFits 7.75 in. Ring Gear Differential Bearing
1984BMW318i——Rear Inner—
1984JaguarXJ6——Rear Outer—
1984JaguarXJS——Rear Outer—
1983BMW320i——Rear Inner—
1983JaguarXJ6——Rear Outer—
1983JaguarXJS——Rear Outer—
1982BMW320i——Rear Inner—
1982JaguarXJ6——Rear Outer—
1982JaguarXJS——Rear Outer—
1981BMW320i——Rear Inner—
1981JaguarXJ6——Rear Outer—
1981JaguarXJS——Rear Outer—
1980BMW320i——Rear Inner—
1980JaguarXJ6——Rear Outer—
1980JaguarXJS——Rear Outer—
1979BMW320i——Rear Inner—
1979JaguarXJ12——Rear Outer—
1979JaguarXJ6——Rear Outer—
1979JaguarXJS——Rear Outer—
1978JaguarXJ12——Rear Outer—
1978JaguarXJ6——Rear Outer—
1978JaguarXJS——Rear Outer—
1977JaguarXJ12——Rear Outer—
1977JaguarXJ6——Rear Outer—
1977JaguarXJS——Rear Outer—
1976JaguarXJ12——Rear Outer—
1976JaguarXJ6——Rear Outer—
1976JaguarXJS——Rear Outer—
1976MercuryMontego——Rear Inner7.5 in., 7.75 in., 8 in. Ring Gear - WCY, WEZ Axles
1975JaguarXJ12——Rear Outer—
1975JaguarXJ6——Rear Outer—
1975MercuryMontego——Rear Inner7.5 in., 7.75 in., 8 in. Ring Gear - WCY, WEZ Axles
1974JaguarXJ12——Rear Outer—
1974JaguarXJ6——Rear Outer—
1974MercuryMontego——Rear Inner7.5 in., 7.75 in., 8 in. Ring Gear - WCY, WEZ Axles
1973JaguarXJ6——Rear Outer—
1973MercuryMontego——Rear Inner7.5 in., 7.75 in., 8 in. Ring Gear - WCY, WEZ Axles
1972DodgeChallenger——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1972DodgeCharger——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1972DodgeDart——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1972JaguarXJ6——Rear Outer—
1972MercuryMontego——Rear Inner7.5 in., 7.75 in., 8 in. Ring Gear - WCY, WEZ Axles
1971ChryslerNew Yorker——Rear Inner1.38 in. pinion shaft outside diameter
1971ChryslerNewport——Rear Inner1.38 in. pinion shaft outside diameter
1971DodgeChallenger——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1971DodgeCharger——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1971DodgeDart——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1971MercuryMontego——Rear Inner7.5 in., 7.75 in., 8 in. Ring Gear - WCY, WEZ Axles
1970ChryslerNew Yorker——Rear Inner1.38 in. pinion shaft outside diameter
1970ChryslerNewport——Rear Inner1.38 in. pinion shaft outside diameter
1970DodgeChallenger——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1970DodgeCharger——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1970DodgeDart——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1970MercuryMontego——Rear Inner7.5 in., 7.75 in., 8 in. Ring Gear - WCY, WEZ Axles
1969ChryslerNew Yorker——Rear Inner1.38 in. pinion shaft outside diameter
1969ChryslerNewport——Rear Inner1.38 in. pinion shaft outside diameter
1969DodgeCharger——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1969DodgeDart——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1969MercuryMontego——Rear Inner7.5 in., 7.75 in., 8 in. Ring Gear - WCY, WEZ Axles
1968ChryslerNew Yorker——Rear Inner1.38 in. pinion shaft outside diameter
1968ChryslerNewport——Rear Inner1.38 in. pinion shaft outside diameter
1968DodgeCharger——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1968DodgeDart——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1968MercuryMontego——Rear Inner7.5 in., 7.75 in., 8 in. Ring Gear - WCY, WEZ Axles
1967ChryslerNew Yorker——Rear Inner1.38 in. pinion shaft outside diameter
1967ChryslerNewport——Rear Inner1.38 in. pinion shaft outside diameter
1967DodgeCharger——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1967DodgeDart——Rear Inner8.75 in. Ring Gear, 1.38 in. Pinion Shaft O.D.
1966DodgeCharger——Rear Inner1.38 in. pinion shaft outside diameter
1966DodgeDart——Rear Inner1.38 in. pinion shaft outside diameter
1965ChryslerNew Yorker——Rear Inner1.38 in. pinion shaft outside diameter
1965ChryslerNewport——Rear Inner1.38 in. pinion shaft outside diameter
1965DodgeDart——Rear Inner1.38 in. pinion shaft outside diameter
1964ChryslerNew Yorker——Rear Inner1.38 in. pinion shaft outside diameter
1964ChryslerNewport——Rear Inner1.38 in. pinion shaft outside diameter
1964DodgeDart2.8LL6Rear InnerNon 1.75 in. Pinion Shaft O.D.
1964DodgeDart4.5LV8Rear InnerNon 1.75 in. Pinion Shaft O.D.
1963ChryslerNew Yorker——Rear Inner1.38 in. pinion shaft outside diameter
1963ChryslerNewport——Rear Inner1.38 in. pinion shaft outside diameter
1963DodgeDart2.8LL6Rear InnerNon 1.75 in. Pinion Shaft O.D.
1963PontiacBonneville——Rear OuterThru 6/1963
1963PontiacCatalina——Rear OuterThru 6/1963
1962BuickLeSabre——Rear Outer—
1962ChryslerNew Yorker——Rear Inner1.38 in. pinion shaft outside diameter
1962ChryslerNewport——Rear Inner1.38 in. pinion shaft outside diameter
1962DodgeDart——Rear Inner—
1962DodgeLancer——Rear Inner—
1962Oldsmobile98——Rear Outer—
1962OldsmobileStarfire——Rear Outer—
1962PontiacBonneville——Rear Outer—
1962PontiacCatalina——Rear Outer—
1961BuickLeSabre——Rear Outer—
1961DodgeDart2.8LL6Rear Inner—
1961DodgeLancer2.8LL6Rear Inner—
1961Oldsmobile98——Rear Outer—
1961OldsmobileStarfire——Rear Outer—
1961PontiacBonneville——Rear Outer—
1961PontiacCatalina——Rear Outer—
1960BuickLeSabre——Rear Outer—
1960DodgeDart2.8LL6Rear Inner—
1960Oldsmobile98——Rear Outer—
1960PontiacBonneville——Rear Outer—
1960PontiacCatalina——Rear Outer—
1959BuickLeSabre——Rear Outer—
1959Oldsmobile98——Rear Outer—
1959PontiacBonneville——Rear Outer—
1959PontiacCatalina——Rear Outer—
1958BuickRoadmaster——Rear Outer—
1958Oldsmobile98——Rear Outer—
1958PontiacBonneville——Rear Outer—
1958PontiacCatalina——Rear Outer—
1957BuickRoadmaster——Rear Outer—
1957ChryslerNew Yorker——Rear Inner—
1957ChryslerNewport——Rear Inner—
1957ChryslerTown & Country——Rear Inner—
1957Oldsmobile88——Rear Outer—
1957OldsmobileStarfire——Rear Outer—
1957PontiacBonneville——Rear Outer—
1957PontiacCatalina——Rear Outer—
1956BuickRoadmaster——Rear Outer—
1955BuickRoadmaster——Rear Outer—
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
National — HM89446