InMotion WS1173 Differential Pinion Seal - Front Outer or Rear Outer

OE Quality 60-Day Returns

InMotion WS1173 Differential Pinion Seal - Front Outer or Rear Outer

Brand	InMotion WS1173
Position	Front Outer and Rear Outer
Material	Polyacrylate
Inside Diameter	1.3779999999999999
Thickness	0.47199999999999998
Outside Diameter	2.6480000000000001
Shaft Diameter	1.3779999999999999
Housing Bore	2.6379999999999999
Fits	Nissan, Saab, and Subaru · 198 vehicles

Precision seal. Polyacrylate construction helps maintain a secure barrier against contaminants.

Leak control. Engineered to reduce fluid loss at the differential pinion sealing point.

Fitment matched. Sized for the listed housing bore and shaft diameter requirements.

$14.11Free shipping

In stock · usually ships same day before 1pm CST

Step 1 — Confirm fitment

Free return shipping if it doesn't fit when you check fitment here first.

Confirm position

Select your vehicle to confirm fitment

Verify this part fits before purchasing — free returns if it doesn't

Step 2 — Quantity

Free shipping to the continental U.S.

Free returns within 60 days if it doesn't fit when fitment is verified.

Not what you need? See all Differential Pinion Seal options

Overview

The InMotion WS1173 differential pinion seal is built for rear outer and front outer applications that require a precise sealing surface. It helps keep contaminants out of the differential pinion area while reducing the risk of fluid leaks.

Compatible With Subaru Impreza, Subaru WRX, Subaru WRX STI, Subaru Forester, and multiple Nissan applications, this seal is a fitment-based replacement for a wide range of driveline service needs. The WS1173 part number is also useful when matching the correct seal for Subaru R160, Subaru R180, and Nissan R180 differential setups.

Key Features

Polyacrylate construction for sealing durability.
Precision dimensions for a secure fit at the housing bore and shaft interface.
Designed to help block moisture and debris from sensitive differential components.
Supports leak control in differential pinion service.
Fits rear outer and front outer applications listed in the vehicle coverage.

Detailed Description

The WS1173 is a differential pinion seal engineered for accurate sealing performance in driveline service. Its polyacrylate material and measured dimensions help it seat properly in the differential housing while maintaining contact at the shaft diameter. For Subaru Impreza, Subaru Forester, and Subaru WRX applications, as well as selected Nissan models, this seal addresses the sealing point that protects the pinion area from contamination and fluid loss.

Use WS1173 when servicing a differential that needs a replacement seal matched to the listed fitment and differential type. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

Differential fluid seepage at the pinion seal area.
Contamination entering the differential through a worn seal.
Seal wear that can affect driveline lubrication retention.
Service issues on Subaru and Nissan differential assemblies with the listed fitment.

Installation Notes

Verify the differential type and the inside diameter requirement before installation. This seal is listed for rear outer and front outer positions only where the fitment notes match the vehicle and differential configuration. Confirm the housing bore and shaft diameter against the removed part to ensure proper seating.

Quality Assurance

InMotion manufactures this seal with precision-focused construction and high-quality materials for differential service applications. The WS1173 part number identifies the correct seal for the listed coverage and helps simplify replacement matching.

This part fits 198 vehicles

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

Year	Make	Model	Drive Type	Position	Notes
2017	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
2017	Subaru	WRX	—	Rear Outer	with Subaru R160 Differential
2017	Subaru	WRX STI	—	Rear Outer	with Subaru R160 Differential
2016	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
2016	Subaru	WRX	—	Rear Outer	with Subaru R160 Differential
2016	Subaru	WRX STI	—	Rear Outer	with Subaru R160 Differential
2015	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
2015	Subaru	WRX	—	Rear Outer	with Subaru R160 Differential
2015	Subaru	WRX STI	—	Rear Outer	with Subaru R160 Differential
2014	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
2014	Subaru	WRX	—	Rear Outer	with Subaru R160 Differential
2014	Subaru	WRX STI	—	Rear Outer	with Subaru R160 Differential
2013	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
2013	Subaru	WRX	—	Rear Outer	with Subaru R160 Differential
2013	Subaru	WRX STI	—	Rear Outer	with Subaru R160 Differential
2012	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2012	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
2011	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2011	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
2010	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2010	Subaru	Impreza	—	Rear Outer	with 2.638in Inside Diameter
2009	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2009	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
2008	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2008	Subaru	Impreza	—	Rear Outer	with 2.638in Inside Diameter
2007	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2007	Subaru	Impreza	—	Rear Outer	with 2.638in Inside Diameter
2006	Saab	9-2X	—	Rear Outer	with Subaru R180 Differential
2006	Subaru	Baja	—	Rear Outer	with Subaru R160 Differential
2006	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2006	Subaru	Impreza	—	Rear Outer	with Subaru R180 Differential
2005	Saab	9-2X	—	Rear Outer	with Subaru R180 Differential
2005	Subaru	Baja	—	Rear Outer	with Subaru R160 Differential
2005	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2005	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
2004	Subaru	Baja	—	Rear Outer	with Subaru R160 Differential
2004	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2004	Subaru	Impreza	—	Rear Outer	with Subaru R180 Differential
2003	Subaru	Baja	—	Rear Outer	with Subaru R160 Differential
2003	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2003	Subaru	Impreza	—	Rear Outer	with Subaru R180 Differential
2002	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2002	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
2001	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2001	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
2000	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
2000	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
1999	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
1999	Subaru	Impreza	—	Rear Outer	with Subaru R180 Differential
1998	Subaru	Forester	—	Rear Outer	with Subaru R160 Differential
1998	Subaru	Impreza	—	Rear Outer	with Subaru R180 Differential
1996	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
1996	Subaru	Legacy	—	Rear Outer	with Subaru R160 Differential
1996	Subaru	SVX	—	Rear Outer	with Subaru R160 Differential
1995	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
1995	Subaru	Legacy	—	Rear Outer	with Subaru R160 Differential
1995	Subaru	SVX	—	Rear Outer	with Subaru R160 Differential
1994	Nissan	Axxess	—	Rear Outer	with Nissan R180 Differential
1994	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
1994	Subaru	Legacy	—	Rear Outer	with Subaru R160 Differential
1994	Subaru	Loyale	—	Rear Outer	with Subaru R160 Differential
1994	Subaru	SVX	—	Rear Outer	with Subaru R160 Differential
1993	Nissan	Axxess	—	Rear Outer	with Nissan R180 Differential
1993	Subaru	Impreza	—	Rear Outer	with Subaru R160 Differential
1993	Subaru	Legacy	—	Rear Outer	with Subaru R160 Differential
1993	Subaru	Loyale	—	Rear Outer	with Subaru R160 Differential
1993	Subaru	SVX	—	Rear Outer	with Subaru R160 Differential
1992	Nissan	Axxess	—	Rear Outer	with Nissan R180 Differential
1992	Subaru	Legacy	—	Rear Outer	with Subaru R160 Differential
1992	Subaru	Loyale	—	Rear Outer	with Subaru R160 Differential
1992	Subaru	SVX	—	Rear Outer	with Subaru R160 Differential
1991	Nissan	Axxess	—	Rear Outer	2.638in Inside Diameter
1991	Subaru	Legacy	—	Rear Outer	with Subaru R160 Differential
1991	Subaru	Loyale	—	Rear Outer	with Subaru R160 Differential
1991	Subaru	XT	—	Rear Outer	with Subaru R160 Differential
1990	Nissan	Axxess	—	Rear Outer	2.638in Inside Diameter
1990	Nissan	Sentra	—	Rear Outer	with Nissan R180 Differential
1990	Subaru	Legacy	—	Rear Outer	with Subaru R160 Differential
1990	Subaru	Loyale	—	Rear Outer	with Subaru R160 Differential
1990	Subaru	XT	—	Rear Outer	with Subaru R160 Differential
1989	Nissan	Sentra	—	Rear Outer	2.638in Inside Diameter
1989	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1989	Subaru	GL	—	Rear Outer	with Subaru R160 Differential
1989	Subaru	GL-10	—	Rear Outer	with Subaru R160 Differential
1989	Subaru	RX	—	Rear Outer	with Subaru R160 Differential
1989	Subaru	XT	—	Rear Outer	with Subaru R160 Differential
1988	Nissan	200SX	—	Rear Outer	2.638in Inside Diameter
1988	Nissan	Multi	—	Rear Outer	2.638in Inside Diameter
1988	Nissan	Sentra	—	Rear Outer	with Nissan R180 Differential
1988	Nissan	Stanza	—	Rear Outer	2.638in Inside Diameter
1988	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1988	Subaru	GL	—	Rear Outer	with Subaru R160 Differential
1988	Subaru	GL-10	—	Rear Outer	with Subaru R160 Differential
1988	Subaru	RX	—	Rear Outer	with Subaru R160 Differential
1988	Subaru	XT	—	Rear Outer	with Subaru R160 Differential
1987	Nissan	200SX	—	Rear Outer	2.638in Inside Diameter
1987	Nissan	Multi	—	Rear Outer	with Nissan R180 Differential
1987	Nissan	Sentra	—	Rear Outer	with Nissan R180 Differential
1987	Nissan	Stanza	—	Rear Outer	with Nissan R180 Differential
1987	Subaru	Brat	—	Rear Outer	with Subaru R160 Differential
1987	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1987	Subaru	GL	—	Rear Outer	with Subaru R160 Differential
1987	Subaru	GL-10	—	Rear Outer	with Subaru R160 Differential
1987	Subaru	RX	—	Rear Outer	with Subaru R160 Differential
1987	Subaru	Standard	—	Rear Outer	with Subaru R160 Differential
1987	Subaru	XT	—	Rear Outer	with Subaru R160 Differential
1986	Nissan	200SX	—	Rear Outer	2.638in Inside Diameter
1986	Nissan	720	—	Front Outer	with Nissan R180 Differential
1986	Nissan	Multi	—	Rear Outer	with Nissan R180 Differential
1986	Nissan	Stanza	—	Rear Outer	with Nissan R180 Differential
1986	Subaru	Brat	—	Rear Outer	with Subaru R160 Differential
1986	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1986	Subaru	GL	—	Rear Outer	with Subaru R160 Differential
1986	Subaru	GL-10	—	Rear Outer	with Subaru R160 Differential
1986	Subaru	RX	—	Rear Outer	with Subaru R160 Differential
1986	Subaru	Standard	—	Rear Outer	with Subaru R160 Differential
1986	Subaru	XT	—	Rear Outer	with Subaru R160 Differential
1985	Nissan	200SX	—	Rear Outer	with Nissan R180 Differential
1985	Nissan	720	—	Front Outer	with Nissan R180 Differential
1985	Subaru	Brat	—	Rear Outer	with Subaru R160 Differential
1985	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1985	Subaru	GL	—	Rear Outer	with Subaru R160 Differential
1985	Subaru	GL-10	—	Rear Outer	with Subaru R160 Differential
1985	Subaru	RX	—	Rear Outer	with Subaru R160 Differential
1985	Subaru	Standard	—	Rear Outer	with Subaru R160 Differential
1985	Subaru	XT	—	Rear Outer	with Subaru R160 Differential
1984	Nissan	200SX	—	Rear Outer	2.638in Inside Diameter
1984	Nissan	720	4WD	Front Outer	2.638in Inside Diameter
1984	Nissan	Maxima	—	Rear Outer	2.638in Inside Diameter
1984	Subaru	Brat	—	Rear Outer	with Subaru R160 Differential
1984	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1984	Subaru	GL	—	Rear Outer	with Subaru R160 Differential
1984	Subaru	Standard	—	Rear Outer	with Subaru R160 Differential
1983	Nissan	280ZX	—	Rear Outer	with Nissan R180 Differential
1983	Nissan	720	—	Front Outer	with Nissan R180 Differential
1983	Nissan	Maxima	—	Rear Outer	2.638in Inside Diameter
1983	Subaru	Brat	—	Rear Outer	with Subaru R160 Differential
1983	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1983	Subaru	GL	—	Rear Outer	with Subaru R160 Differential
1983	Subaru	Standard	—	Rear Outer	with Subaru R160 Differential
1982	Nissan	280ZX	—	Rear Outer	with Nissan R180 Differential
1982	Nissan	720	4WD	Front Outer	2.638in Inside Diameter
1982	Nissan	Maxima	—	Rear Outer	2.638in Inside Diameter
1982	Subaru	Brat	—	Rear Outer	with Subaru R160 Differential
1982	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1982	Subaru	GL	—	Rear Outer	with Subaru R160 Differential
1982	Subaru	GLF	—	Rear Outer	with Subaru R160 Differential
1982	Subaru	Standard	—	Rear Outer	with Subaru R160 Differential
1981	Nissan	280ZX	—	Rear Outer	with Nissan R180 Differential
1981	Nissan	720	—	Front Outer	with Nissan R180 Differential
1981	Nissan	810	—	Rear Outer	2.638in Inside Diameter
1981	Nissan	Maxima	—	Rear Outer	2.638in Inside Diameter
1981	Subaru	Brat	—	Rear Outer	with Subaru R160 Differential
1981	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1981	Subaru	GL	—	Rear Outer	with Subaru R160 Differential
1981	Subaru	GLF	—	Rear Outer	with Subaru R160 Differential
1981	Subaru	Standard	—	Rear Outer	with Subaru R160 Differential
1980	Nissan	280ZX	—	Rear Outer	2.638in Inside Diameter
1980	Nissan	720	—	Front Outer	with Nissan R180 Differential
1980	Nissan	810	—	Rear Outer	2.638in Inside Diameter
1980	Subaru	Brat	—	Rear Outer	with Subaru R160 Differential
1980	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1980	Subaru	GL	—	Rear Outer	with Subaru R160 Differential
1980	Subaru	GLF	—	Rear Outer	with Subaru R160 Differential
1980	Subaru	Standard	—	Rear Outer	with Subaru R160 Differential
1979	Nissan	280ZX	—	Rear Outer	2.638in Inside Diameter
1979	Nissan	810	—	Rear Outer	with Nissan R180 Differential
1979	Subaru	Brat	—	Rear Outer	with Subaru R160 Differential
1979	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1979	Subaru	FE	—	Rear Outer	with Subaru R160 Differential
1979	Subaru	GF	—	Rear Outer	with Subaru R160 Differential
1979	Subaru	GL	—	Rear Outer	with Subaru R160 Differential
1979	Subaru	Standard	—	Rear Outer	with Subaru R160 Differential
1978	Nissan	280Z	—	Rear Outer	with Nissan R180 Differential
1978	Nissan	810	—	Rear Outer	2.638in Inside Diameter
1978	Subaru	Brat	—	Rear Outer	with Subaru R160 Differential
1978	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1978	Subaru	GF	—	Rear Outer	with Subaru R160 Differential
1978	Subaru	Standard	—	Rear Outer	with Subaru R160 Differential
1977	Nissan	280Z	—	Rear Outer	2.638in Inside Diameter
1977	Nissan	810	—	Rear Outer	with Nissan R180 Differential
1977	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1977	Subaru	GF	—	Rear Outer	with Subaru R160 Differential
1977	Subaru	Standard	—	Rear Outer	with Subaru R160 Differential
1976	Nissan	280Z	—	Rear Outer	2.638in Inside Diameter
1976	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1976	Subaru	GF	—	Rear Outer	with Subaru R160 Differential
1976	Subaru	Standard	—	Rear Outer	with Subaru R160 Differential
1975	Nissan	260Z	—	Rear Outer	2.638in Inside Diameter
1975	Nissan	280Z	—	Rear Outer	with Nissan R180 Differential
1975	Subaru	DL	—	Rear Outer	with Subaru R160 Differential
1975	Subaru	GF	—	Rear Outer	with Subaru R160 Differential
1975	Subaru	GL	—	Rear Outer	with Subaru R160 Differential
1974	Nissan	260Z	—	Rear Outer	with Nissan R180 Differential
1973	Nissan	240Z	—	Rear Outer	with Nissan R180 Differential
1972	Nissan	240Z	—	Rear Outer	2.638in Inside Diameter
1971	Nissan	240Z	—	Rear Outer	2.638in Inside Diameter
1970	Nissan	240Z	—	Rear Outer	2.638in Inside Diameter
No rows match your filter.

Will it fit your vehicle?