National 710724 Manual Transmission Output Shaft Seal - Left or Right

Manual Transmission Output Shaft Seal for Subaru and Suzuki

National 710724 is a manual transmission output shaft seal built for metric applications that need a precise shaft-to-housing seal. It uses a polyacrylate sealing material and a counter-clockwise spiral lip design to help maintain sealing performance in the transmission case.

With confirmed coverage for Subaru and Suzuki applications, this seal is a direct-fit option for select left and right side manual transmission service. The National 710724 part number is also referenced in OE-style replacement searches for Subaru Forester, Impreza, Legacy, Outback, WRX, and Suzuki Swift applications.

Key Features

• Manual transmission output shaft seal / oil seal
• National part number 710724
• Polyacrylate sealing material for transmission sealing applications
• Counter-clockwise spiral lip design
• Metric dimensions: 35.000 mm shaft, 50.000 mm housing bore
• Outside diameter: 50.200 mm; width: 9.000 mm
• Overall width with side lip: 15.000 mm
• Cross-reference: SKF 13770A

Detailed Description

National 710724 is engineered as a manual transmission output shaft seal for select Subaru and Suzuki vehicles. The seal measures 35.000 mm inside diameter, 50.200 mm outside diameter, and 9.000 mm width, with a 50.000 mm housing bore and 15.000 mm overall width with side lip. Its polyacrylate construction is suited to transmission sealing demands, while the counter-clockwise spiral lip design supports controlled sealing at the shaft interface. This part is commonly searched for Subaru Forester, Impreza, Legacy, Outback, WRX, and WRX STI manual transmission service, as well as Suzuki Esteem and Swift applications.

This part cross-references SKF 13770A for the same application.

What It Helps Fix

• Transmission fluid leaking from the output shaft area
• Oil seepage around the manual transmission case
• Seal wear from age, heat, and mileage
• Contamination entering the transmission through a worn seal
• Service issues on left or right side applications listed below

Fitment Notes

• Fits 2016-2019 Subaru Crosstrek, left.
• Fits 2014-2019 Subaru Forester, left.
• Fits 2012-2019 Subaru Impreza, left.
• Fits 2010-2019 Subaru Legacy, left.
• Fits 2010-2019 Subaru Outback, left.
• Fits 2015-2019 Subaru WRX, left.
• Fits 2016-2019 Subaru WRX STI, left.
• Fits 2014-2015 Subaru Forester, left, with Subaru TY751 Transmission.
• Fits 2008-2015 Subaru Impreza, left, with Subaru TY758 Transmission.
• Fits 2015 Subaru WRX, left, with Subaru TY751 Transmission.
• Fits 2013-2015 Subaru WRX STI, left, with Subaru TY856 Transmission.
• Fits 2013-2015 Subaru XV Crosstrek, left, with Subaru TY758 Transmission.
• Fits 2013-2015 Subaru XV Crosstrek, left.
• Fits 2004-2014 Subaru Impreza, left, with Subaru TY856 Transmission.
• Fits 2010-2014 Subaru Legacy, left, Fits Subaru TG5D8 Transmission.
• Fits 2014 Subaru Legacy, left, with Subaru TY751 Transmission.
• Fits 2010-2014 Subaru Outback, left, Fits Subaru TG5D8 Transmission.
• Fits 2014 Subaru Outback, left, with Subaru TY751 Transmission.
• Fits 2013-2014 Subaru WRX, left, with Subaru TY758 Transmission.
• Fits 2009-2013 Subaru Forester, left, Fits Subaru TZ1B8 Transmission.
• Fits 2009-2013 Subaru Forester, left, with Subaru TY758 Transmission.
• Fits 2010-2013 Subaru Legacy, left, with Subaru TY756 Transmission.
• Fits 2010-2013 Subaru Outback, left, with Subaru TY756 Transmission.
• Fits 2008-2012 Subaru Impreza, left, Fits Subaru TZ1B8 Transmission.
• Fits 2007-2012 Subaru Legacy, left, with Subaru TY856 Transmission.
• Fits 2010-2012 Subaru Outback, left, with Subaru TY856 Transmission.
• Fits 2005-2009 Subaru Legacy, left, Fits Subaru TZ1B7 Transmission.
• Fits 2008-2009 Subaru Legacy, left, Fits Subaru TV1B8 Transmission.
• Fits 2008-2009 Subaru Legacy, left, Fits Subaru TZ1B8 Transmission.
• Fits 2008-2009 Subaru Legacy, left, with Subaru TY758 Transmission.
• Fits 2008-2009 Subaru Outback, left, Fits Subaru TV1B8 Transmission.
• Fits 2008-2009 Subaru Outback, left, Fits Subaru TZ1B8 Transmission.
• Fits 2008-2009 Subaru Outback, left, with Subaru TY758 Transmission.
• Fits 2007-2008 Subaru Forester, left, with Subaru TY757 Transmission.
• Fits 2005-2008 Subaru Outback, left, Fits Subaru TZ1B7 Transmission.
• Fits 2006-2007 Subaru B9 Tribeca, left, Fits Subaru TG5C7 Transmission.
• Fits 2007 Subaru Impreza, left, with Subaru TY757 Transmission.
• Fits 2005-2007 Subaru Legacy, left, Fits Subaru TG5C7 Transmission.
• Fits 2005-2007 Subaru Legacy, left, with Subaru TY757 Transmission.
• Fits 2005-2007 Subaru Outback, left, Fits Subaru TG5C7 Transmission.
• Fits 2007 Subaru Outback, left, with Subaru TY757 Transmission.
• Fits 1995-2002 Suzuki Esteem, right, with Suzuki SE5F-A Transmission.
• Fits 1995-2001 Suzuki Swift, right, with Suzuki SE5F-A Transmission.

Installation Notes and Tips

Confirm the transmission code and side before installation, especially on Subaru applications with TY751, TY756, TY757, TY758, TY856, TG5C7, TG5D8, TZ1B7, TZ1B8, TV1B8, or related transmission notes. Inspect the shaft surface and housing bore for wear, scoring, or contamination before installing the new seal. Clean the sealing area thoroughly and verify the seal seats evenly in the bore.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop transmission and engine sealing components for modern vehicles. The 710724 reflects that focus with a metric oil seal design built for select manual transmission applications.