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InMotion WS4099 Wheel Seal - Rear InnerOE Quality 60-Day Returns
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Part #: WS4099

InMotion WS4099 Wheel Seal - Rear Inner

Rear Inner
⚙️ 134 vehicles fit this part
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Rear Inner Differential Pinion Seal for Chrysler and Dodge

The InMotion WS4099 is a rear inner differential pinion seal built with nitrile material and a spring made from SAE 1008 steel. It is sized for a 1.673 shaft diameter, 2.162 housing bore, and 0.285 width to help maintain a secure seal at the differential pinion area.

Compatible with a wide range of Chrysler, Dodge, and Plymouth rear inner applications, including Chrysler LeBaron, Dodge Shadow, and Plymouth Reliant models. The WS4099 is specified for vehicles that need a precise sealing surface to keep contaminants out and fluid in.

Key Features

  • Nitrile seal material for dependable fluid resistance
  • SAE 1008 spring material for consistent sealing tension
  • Inside diameter: 1.66 in. / 42.1 mm
  • Shaft diameter: 1.673 in. / 42.5 mm
  • Outside diameter: 2.17 in. / 55 mm
  • Housing bore: 2.162 in. / 54.9 mm
  • Width: 0.285 in. / 7.2 mm
  • External markings: 1.673 x 2.162 x 0.285

Detailed Description

InMotion WS4099 is a differential pinion seal engineered to create a tight barrier at the rear inner position. Its nitrile construction and steel spring help maintain contact pressure around the shaft, reducing the chance of gear oil leakage while limiting entry of dirt and moisture into the differential assembly. This part cross-references Monroe Shocks & Struts (e.g., 172286) for the same application.

Fits 1983-1995 Chrysler LeBaron, Rear Inner; Fits 1989-1995 Dodge Spirit, Rear Inner; Fits 1989-1995 Plymouth Acclaim, Rear Inner; Fits 1987-1994 Dodge Shadow, Rear Inner; Fits 1987-1994 Plymouth Sundance, Rear Inner; Fits 1984-1993 Chrysler Daytona, Rear Inner; Fits 1988-1993 Chrysler Dynasty, Rear Inner; Fits 1990-1993 Chrysler Imperial, Rear Inner; Fits 1983-1993 Chrysler New Yorker, Rear Inner; Fits 1984-1993 Dodge Daytona, Rear Inner; Fits 1983-1989 Dodge Aries, Rear Inner; Fits 1985-1989 Dodge Lancer, Rear Inner; Fits 1987-1989 Plymouth Expo, Rear Inner; Fits 1983-1989 Plymouth Reliant, Rear Inner; Fits 1983-1988 Chrysler Town & Country, Rear Inner; Fits 1983-1988 Dodge 600, Rear Inner; Fits 1983-1987 Dodge Charger, Rear Inner; Fits 1984-1986 Chrysler Laser, Rear Inner; Fits 1983-1986 Plymouth Turismo, Rear Inner; Fits 1985-1986 Plymouth Turismo 2.2, Rear Inner; Fits 1983-1984 Dodge Rampage, Rear Inner.

What It Helps Address

  • Gear oil seepage at the differential pinion area
  • Contamination from road debris and moisture
  • Seal wear that can lead to driveline fluid loss
  • Reduced sealing performance in rear inner differential service
  • Noise or damage risk associated with low lubricant levels

Installation Notes and Tips

Verify shaft diameter, housing bore, and width before installation. Clean the sealing surface thoroughly and inspect the pinion area for wear, scoring, or contamination that could affect seal life. Confirm rear inner position and vehicle application against the listed fitment before service.

Quality Assurance

Built from nitrile with an SAE 1008 spring for controlled sealing contact, the WS4099 is manufactured to match the dimensional requirements listed above. InMotion WS4099 is intended for direct replacement use on the specified Chrysler, Dodge, and Plymouth rear inner applications.

BrandInMotion
Part NumberWS4099
MaterialNitrile
External Markings1.673 x 2.162 x 0.285
Inside Diameter1.66
Inside Diameter42.1
Spring MaterialSae 1008
Width0.28499999999999998
Width7.2
Outside Diameter2.17
Outside Diameter55
Shaft Diameter1.673
Shaft Diameter42.5
Weight17.600000000000001
Housing Bore2.1619999999999999
Housing Bore54.9

This part fits 134 vehicles. Search below:

YearMakeModelPositionNotes
1995ChryslerLeBaronRear Inner
1995DodgeSpiritRear Inner
1995PlymouthAcclaimRear Inner
1994ChryslerLeBaronRear Inner
1994DodgeShadowRear Inner
1994DodgeSpiritRear Inner
1994PlymouthAcclaimRear Inner
1994PlymouthSundanceRear Inner
1993ChryslerDaytonaRear Inner
1993ChryslerDynastyRear Inner
1993ChryslerImperialRear Inner
1993ChryslerLeBaronRear Inner
1993ChryslerNew YorkerRear Inner
1993DodgeDaytonaRear Inner
1993DodgeShadowRear Inner
1993DodgeSpiritRear Inner
1993PlymouthAcclaimRear Inner
1993PlymouthSundanceRear Inner
1992ChryslerDaytonaRear Inner
1992ChryslerDynastyRear Inner
1992ChryslerImperialRear Inner
1992ChryslerLeBaronRear Inner
1992ChryslerNew YorkerRear Inner
1992DodgeDaytonaRear Inner
1992DodgeShadowRear Inner
1992DodgeSpiritRear Inner
1992PlymouthAcclaimRear Inner
1992PlymouthSundanceRear Inner
1991ChryslerDaytonaRear Inner
1991ChryslerDynastyRear Inner
1991ChryslerImperialRear Inner
1991ChryslerLeBaronRear Inner
1991ChryslerNew YorkerRear Inner
1991DodgeDaytonaRear Inner
1991DodgeShadowRear Inner
1991DodgeSpiritRear Inner
1991PlymouthAcclaimRear Inner
1991PlymouthSundanceRear Inner
1990ChryslerDaytonaRear Inner
1990ChryslerDynastyRear Inner
1990ChryslerImperialRear Inner
1990ChryslerLeBaronRear Inner
1990ChryslerNew YorkerRear Inner
1990DodgeDaytonaRear Inner
1990DodgeShadowRear Inner
1990DodgeSpiritRear Inner
1990PlymouthAcclaimRear Inner
1990PlymouthSundanceRear Inner
1989ChryslerDaytonaRear Inner
1989ChryslerDynastyRear Inner
1989ChryslerLeBaronRear Inner
1989ChryslerNew YorkerRear Inner
1989DodgeAriesRear Inner
1989DodgeDaytonaRear Inner
1989DodgeLancerRear Inner
1989DodgeShadowRear Inner
1989DodgeSpiritRear Inner
1989PlymouthAcclaimRear Inner
1989PlymouthExpoRear Inner
1989PlymouthReliantRear Inner
1989PlymouthSundanceRear Inner
1988ChryslerDaytonaRear Inner
1988ChryslerDynastyRear Inner
1988ChryslerLeBaronRear Inner
1988ChryslerNew YorkerRear Inner
1988ChryslerTown & CountryRear Inner
1988Dodge600Rear Inner
1988DodgeAriesRear Inner
1988DodgeDaytonaRear Inner
1988DodgeLancerRear Inner
1988DodgeShadowRear Inner
1988PlymouthExpoRear Inner
1988PlymouthReliantRear Inner
1988PlymouthSundanceRear Inner
1987ChryslerDaytonaRear Inner
1987ChryslerLeBaronRear Inner
1987ChryslerNew YorkerRear Inner
1987ChryslerTown & CountryRear Inner
1987Dodge600Rear Inner
1987DodgeAriesRear Inner
1987DodgeChargerRear Inner
1987DodgeDaytonaRear Inner
1987DodgeLancerRear Inner
1987DodgeShadowRear Inner
1987PlymouthExpoRear Inner
1987PlymouthReliantRear Inner
1987PlymouthSundanceRear Inner
1986ChryslerDaytonaRear Inner
1986ChryslerLaserRear Inner
1986ChryslerLeBaronRear Inner
1986ChryslerNew YorkerRear Inner
1986ChryslerTown & CountryRear Inner
1986Dodge600Rear Inner
1986DodgeAriesRear Inner
1986DodgeChargerRear Inner
1986DodgeDaytonaRear Inner
1986DodgeLancerRear Inner
1986PlymouthReliantRear Inner
1986PlymouthTurismoRear Inner
1986PlymouthTurismo 2.2Rear Inner
1985ChryslerDaytonaRear Inner
1985ChryslerLaserRear Inner
1985ChryslerLeBaronRear Inner
1985ChryslerNew YorkerRear Inner
1985ChryslerTown & CountryRear Inner
1985Dodge600Rear Inner
1985DodgeAriesRear Inner
1985DodgeChargerRear Inner
1985DodgeDaytonaRear Inner
1985DodgeLancerRear Inner
1985PlymouthReliantRear Inner
1985PlymouthTurismoRear Inner
1985PlymouthTurismo 2.2Rear Inner
1984ChryslerDaytonaRear Inner
1984ChryslerLaserRear Inner
1984ChryslerLeBaronRear Inner
1984ChryslerNew YorkerRear Inner
1984ChryslerTown & CountryRear Inner
1984Dodge600Rear Inner
1984DodgeAriesRear Inner
1984DodgeChargerRear Inner
1984DodgeDaytonaRear Inner
1984DodgeRampageRear Inner
1984PlymouthReliantRear Inner
1984PlymouthTurismoRear Inner
1983ChryslerLeBaronRear Inner
1983ChryslerNew YorkerRear Inner
1983ChryslerTown & CountryRear Inner
1983Dodge600Rear Inner
1983DodgeAriesRear Inner
1983DodgeChargerRear Inner
1983DodgeRampageRear Inner
1983PlymouthReliantRear Inner
1983PlymouthTurismoRear Inner

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.