National 711090 Axle Differential Seal - Rear Left

Overview

National 711090 is an axle differential seal for Subaru applications that use the R160 differential. It is built as an oil seal with a polyacrylate sealing material and a counter-clockwise spiral lip design for controlled sealing performance.

Fits 2016-2019 Subaru Crosstrek, rear left, with Subaru R160 Differential. Fits 1998-2019 Subaru Forester, rear left, with Subaru R160 Differential. Fits 2013-2019 Subaru Impreza, rear left, with Subaru R160 Differential. Fits 1993-1996 Subaru Impreza, rear left, with Subaru R160 Differential. Fits 2013-2019 Subaru Legacy, rear left, with Subaru R160 Differential. Fits 1993-1996 Subaru Legacy, rear left, with Subaru R160 Differential. Fits 2013-2019 Subaru Outback, rear left, with Subaru R160 Differential. Fits 2013-2019 Subaru WRX, rear left, with Subaru R160 Differential. Fits 2013-2019 Subaru WRX STI, rear left, with Subaru R160 Differential. Fits 2013-2015 Subaru XV Crosstrek, rear left, with Subaru R160 Differential. Fits 1997-2012 Subaru Impreza, rear left, with Subaru R160 Differential; with Posi-Traction. Fits 1997-2012 Subaru Legacy, rear left, with Subaru R160 Differential; with Posi-Traction. Fits 2000-2012 Subaru Outback, rear left, with Subaru R160 Differential; with Posi-Traction. Fits 2003-2006 Subaru Baja, rear left, with Subaru R160 Differential.

Key Features

• Polyacrylate sealing material for durable oil control.
• Counter-clockwise spiral lip design for consistent sealing action.
• Metric dimensions for accurate differential seal replacement.
• National 711090 series construction for application-specific fitment.

Detailed Description

This axle differential seal is engineered for Subaru rear differential service where the R160 unit is specified. The seal uses a polyacrylate body with a spiral lip profile to help maintain a tight seal at the axle opening, and its metric sizing supports precise replacement in the correct housing bore and shaft diameter range. National 711090 is listed for Subaru Crosstrek, Forester, Impreza, Legacy, Outback, WRX, WRX STI, XV Crosstrek, and Baja applications with the noted differential configurations.

This part cross-references Monroe Shocks & Struts (e.g., 8067-32080, 8067-32100) for the same application.

What It Helps Address

• Gear oil seepage at the axle differential seal area.
• Contamination around the differential housing opening.
• Seal wear from age, heat, and fluid exposure.
• Leak-related maintenance on Subaru R160 differential assemblies.

Installation Notes and Tips

Verify the differential type and axle position before installation. Confirm housing bore, shaft diameter, and seal width against the existing part to match the application. Clean the sealing surface thoroughly and inspect the axle and housing for wear or damage that could affect sealing performance.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop sealing products for modern vehicle applications.