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NationalPart #: 1173
National 1173 Differential Pinion Seal - Front Outer or Rear Outer
89 vehicles fit this part
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Fitment: Subaru, Saab, and Nissan, Forester, Impreza, 9-2X, Baja, Legacy, SVX, Axxess, Loyale, XT, Sentra, DL, GL, GL-10, RX, 200SX, Multi, Stanza, Brat, Standard, 720, Maxima, 280ZX, GLF, 810, FE, GF, 280Z, 260Z, and 240Z
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Not what you need? See all Differential Pinion Seal options
National 1173 Differential Pinion Seal
National 1173 is a metric differential pinion seal built for rear outer and front outer applications that require a 35 mm shaft diameter and a 67.270 mm outside diameter. Its polyacrylate construction and clockwise-spiral lip design support sealing performance in driveline service where gear oil retention is critical.
Key Features
- Part number 1173 differential pinion seal for driveline and axle sealing service
- Inside diameter: 1.378 in / 35.000 mm
- Outside diameter: 2.648 in / 67.270 mm
- Thickness: 0.472 in / 12.000 mm
- Overall width with side lip: 0.709 in / 18.000 mm
- Polyacrylate material for sealing durability
- Clockwise-spiral lip design
- Metric unit of dimension
- Series 1000, Type 40 oil seal
Detailed Description
This National 1173 oil seal is engineered for differential pinion sealing in vehicles using Subaru R160, Subaru R180, or Nissan R180 differential setups. It is listed for rear outer and front outer positions, including applications such as 1998-2012 Subaru Forester rear outer, 1998-2012 Subaru Impreza rear outer, 2005-2006 Saab 9-2X rear outer, and 1980-1986 Nissan 720 front outer. National has supplied sealing solutions for decades, and this part reflects that focus with a metric fit and a spiral-lip profile for controlled sealing contact. This part cross-references Four Seasons 66767 for the same application.
What It Helps Address
- Gear oil seepage at the differential pinion area
- Fluid loss around the pinion shaft seal surface
- Contamination entering the differential housing through a worn seal
- Noise or driveline wear associated with low lubricant level
- Leak repair on Subaru and Nissan rear outer or front outer differential applications
Installation Notes and Tips
Verify the shaft diameter, housing bore, and seal width before installation. Confirm the differential type and position listed for your vehicle, since this seal is used in specific Subaru R160, Subaru R180, and Nissan R180 applications. Inspect the pinion surface for wear or scoring and replace any damaged sealing surface before installing part number 1173. Clean the bore thoroughly so the seal seats evenly and maintains proper lip contact.
Quality Assurance
National is known for premium sealing solutions and continued product development for modern vehicle service needs. The 1173 differential pinion seal is built to meet the dimensional and material requirements shown above for accurate replacement selection.
- Fits 1998-2012 Subaru Forester, rear outer
- Fits 1998-2012 Subaru Impreza, rear outer
- Fits 2005-2006 Saab 9-2X, rear outer
- Fits 2003-2006 Subaru Baja, rear outer
- Fits 1993-1996 Subaru Impreza, rear outer
- Fits 1990-1996 Subaru Legacy, rear outer
- Fits 1987-1990 Nissan Sentra, rear outer
- Fits 1984-1988 Nissan 200SX, rear outer
- Fits 1976-1987 Subaru Standard, rear outer
- Fits 1980-1986 Nissan 720, front outer
- Fits 1981-1984 Nissan Maxima, rear outer
- Fits 1979-1983 Nissan 280ZX, rear outer
- Fits 1977-1981 Nissan 810, rear outer
| Brand | National |
|---|---|
| Part Number | 1173 |
| Helix Type | Clockwise-Spiral Lip Design |
| Housing Bore (Inch) | 2.638 |
| Housing Bore (MM) | 67.000 |
| Inside Diameter | 1.378 |
| Inside Diameter | 35.000 |
| Material | Polyacrylate |
| Outside Diameter | 2.648 |
| Outside Diameter | 67.270 |
| Outside Diameter (Inch) | 2.648 |
| Outside Diameter (mm) | 67.270 |
| Overall Width with Side Lip (MM) | 18.000 |
| Overall Width with Side Lip (Inch) | 0.709 |
| Part Description | Oil Seal |
| Series | 1000 |
| Shaft (Inch) | 1.378 |
| Shaft (MM) | 35.000 |
| Thickness | 0.472 |
| Thickness | 12.000 |
| Type | 40 |
| Unit of Dimension | Metric |
| Width (Inch) | 0.472 |
| Width (mm) | 12.000 |
This part fits 89 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2012 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2012 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2011 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2011 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2010 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2010 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2009 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2009 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2008 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2008 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2007 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2007 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2006 | Saab | 9-2X | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2006 | Subaru | Baja | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2006 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2006 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2005 | Saab | 9-2X | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2005 | Subaru | Baja | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2005 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2005 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2004 | Subaru | Baja | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2004 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2004 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2003 | Subaru | Baja | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2003 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2003 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2002 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2002 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2001 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2001 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 2000 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 2000 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 1999 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1999 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 1998 | Subaru | Forester | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1998 | Subaru | Impreza | Rear Outer | with Subaru R180 Differential; 2.638 (in) Inside Diameter | |
| 1996 | Subaru | Impreza | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1996 | Subaru | Legacy | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1995 | Subaru | Impreza | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1995 | Subaru | Legacy | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1994 | Subaru | Impreza | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1994 | Subaru | Legacy | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1993 | Subaru | Impreza | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1993 | Subaru | Legacy | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1992 | Subaru | Legacy | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1991 | Subaru | Legacy | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1990 | Nissan | Sentra | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1990 | Subaru | Legacy | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1989 | Nissan | Sentra | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1988 | Nissan | 200SX | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1988 | Nissan | Sentra | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1987 | Nissan | 200SX | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1987 | Nissan | Sentra | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1987 | Subaru | Standard | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1986 | Nissan | 200SX | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1986 | Nissan | 720 | 4WD | Front Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter |
| 1986 | Subaru | Standard | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1985 | Nissan | 200SX | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1985 | Nissan | 720 | 4WD | Front Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter |
| 1985 | Subaru | Standard | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1984 | Nissan | 200SX | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1984 | Nissan | 720 | 4WD | Front Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter |
| 1984 | Nissan | Maxima | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1984 | Subaru | Standard | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1983 | Nissan | 280ZX | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1983 | Nissan | 720 | 4WD | Front Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter |
| 1983 | Nissan | Maxima | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1983 | Subaru | Standard | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1982 | Nissan | 280ZX | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1982 | Nissan | 720 | 4WD | Front Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter |
| 1982 | Nissan | Maxima | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1982 | Subaru | Standard | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1981 | Nissan | 280ZX | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1981 | Nissan | 720 | 4WD | Front Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter |
| 1981 | Nissan | 810 | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1981 | Nissan | Maxima | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1981 | Subaru | Standard | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1980 | Nissan | 280ZX | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1980 | Nissan | 720 | 4WD | Front Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter |
| 1980 | Nissan | 810 | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1980 | Subaru | Standard | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1979 | Nissan | 280ZX | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1979 | Nissan | 810 | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1979 | Subaru | Standard | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1978 | Nissan | 810 | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1978 | Subaru | Standard | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1977 | Nissan | 810 | Rear Outer | with Nissan R180 Differential; 2.638 (in) Inside Diameter | |
| 1977 | Subaru | Standard | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter | |
| 1976 | Subaru | Standard | Rear Outer | with Subaru R160 Differential; 2.638 (in) Inside Diameter |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
117313971139781901667319016673B1902790319027903B211-653429215238189-01G0038189-U300038189-U300138332-2110065-00060667678067-35130L81-6590NJ575P6534PR6534
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.