National 710544 Automatic Transmission Manual Shaft Seal

Automatic Transmission Manual Shaft Seal Overview

The National 710544 automatic transmission manual shaft seal is a metric oil seal built for transmission sealing applications where a precise shaft-to-housing fit is required. It uses nitrile sealing material and is sized for a 12.000 mm shaft with a 19.000 mm housing bore, making it a practical OE-style replacement for a range of GM, Ford, Lincoln, Buick, Cadillac, Chevrolet, GMC, and related vehicles.

National has supported sealing applications for more than 75 years, and the 710544 reflects that focus with a compact design for automatic transmission service. The National 710544 is also referenced by part number 710544 for easy catalog matching.

Key Features

• Automatic transmission manual shaft seal / oil seal
• Nitrile sealing material for transmission fluid sealing
• Metric dimensions for accurate fitment
• Inside diameter: 12.000 mm (0.472 in.)
• Outside diameter: 19.230 mm (0.757 in.)
• Width: 7.500 mm (0.295 in.)
• Overall width with side lip: 9.000 mm (0.354 in.)
• Housing bore: 19.000 mm (0.748 in.)
• Series: 710500

Detailed Description

This National transmission seal is engineered around the listed shaft and bore dimensions to help maintain a tight seal at the manual shaft area of the automatic transmission. Its nitrile construction is suited to fluid sealing demands in modern drivetrains, while the metric sizing supports accurate service replacement on vehicles such as the Chevrolet Equinox, Ford Edge, and Lincoln MKX. The National 710544 is a direct catalog match for applications that call for this specific seal profile.

This part cross-references 7T4P-7F337-B and 08644709 for the same application.

What It Helps Address

• Transmission fluid seepage at the manual shaft seal area
• Leak-related low fluid condition in the automatic transmission
• Seal wear from age, heat, and fluid exposure
• Service replacement during transmission repair or rebuild
• Fitment needs for vehicles using the specified 12 mm shaft and 19 mm bore dimensions

Installation Notes and Fitment

Install only after confirming the shaft diameter, housing bore, and seal width match the transmission specification. Clean the sealing surface and inspect the shaft for wear, scoring, or burrs before installation. Use proper transmission service procedures to avoid damaging the nitrile lip during assembly.

Compatible With:

• Fits 2008-2019 Buick Enclave, N/A
• Fits 2018-2019 Buick Regal Sportback, N/A
• Fits 2019 Cadillac XT4, N/A
• Fits 2013-2019 Cadillac XTS, N/A
• Fits 2019 Chevrolet Blazer, N/A
• Fits 2017-2019 Chevrolet Cruze, N/A
• Fits 2016-2019 Chevrolet Equinox, N/A
• Fits 2012-2019 Chevrolet Impala, N/A
• Fits 2016-2019 Chevrolet Malibu, N/A
• Fits 2009-2019 Chevrolet Traverse, N/A
• Fits 2011-2019 Chevrolet Volt, N/A
• Fits 2017-2019 Ford Explorer, N/A
• Fits 2009-2019 Ford Flex, N/A
• Fits 2016-2019 Ford Taurus, N/A
• Fits 2016-2019 GMC Acadia, N/A
• Fits 2010-2019 GMC Terrain, N/A
• Fits 2017-2019 Lincoln Continental, N/A
• Fits 2016-2019 Lincoln MKT, N/A
• Fits 2013-2019 Lincoln MKZ, N/A
• Fits 2018 Ford EcoSport, N/A
• Fits 2016-2018 Ford Edge, N/A
• Fits 2017-2018 Ford Fusion, N/A
• Fits 2018 Ford Transit Connect, N/A
• Fits 2007-2018 Lincoln MKX, N/A, with Ford 6F50 Transmission
• Fits 2014-2017 Buick Regal, N/A
• Fits 2017 GMC Acadia Limited, N/A
• Fits 2010-2016 Buick LaCrosse, N/A
• Fits 2014-2016 Cadillac ELR, N/A
• Fits 2010-2016 Cadillac SRX, N/A
• Fits 2014-2016 Chevrolet Impala Limited, N/A
• Fits 2016 Ford Explorer, N/A, with 6F50 Transmission
• Fits 2016 Lincoln MKS, N/A, with Ford 6F55 Transmission
• Fits 2009-2016 Lincoln MKS, N/A, with Ford 6F50 Transmission
• Fits 2008-2015 Chevrolet Equinox, N/A, with GMC 6T70 Transmission
• Fits 2008-2015 Chevrolet Malibu, N/A, with GMC 6T70 Transmission
• Fits 2013-2015 Ford Edge, N/A, with Ford 6F55 Transmission
• Fits 2007-2015 Ford Edge, N/A, with Ford 6F50 Transmission
• Fits 2011-2015 Ford Explorer, N/A, with Ford 6F50 Transmission
• Fits 2011-2015 Ford Taurus, N/A, with Ford 6F55 Transmission
• Fits 2008-2015 Ford Taurus, N/A, with Ford 6F50 Transmission
• Fits 2007-2015 GMC Acadia, N/A, with GMC 6T75 Transmission
• Fits 2010-2015 Lincoln MKT, N/A, with Ford 6F50 Transmission
• Fits 2013 Mazda CX-9, N/A, with Ford 6F50 Transmission
• Fits 2011 Ford Explorer, N/A, with Ford 6F55 Transmission
• Fits 2011 Saab 9-4X, N/A, with GMC 6T70 Transmission
• Fits 2010 Buick Allure, N/A
• Fits 2007-2010 Pontiac G6, N/A, with GMC 6T70 Transmission
• Fits 2007-2010 Saturn Outlook, N/A, with GMC 6T75 Transmission
• Fits 2008-2010 Saturn Vue, N/A, with GMC 6T75 Transmission
• Fits 2008-2010 Saturn Vue, N/A, with GMC 6T70 Transmission
• Fits 2008-2009 Chevrolet Equinox, N/A, with GMC 6T75 Transmission
• Fits 2008-2009 Ford Taurus X, N/A
• Fits 2008-2009 Mercury Sable, N/A, with Ford 6F50 Transmission
• Fits 2008-2009 Pontiac Torrent, N/A, with GMC 6T75 Transmission
• Fits 2007-2009 Saturn Aura, N/A, with GMC 6T70 Transmission

Quality Assurance

National is known for sealing solutions backed by more than 75 years in the industry, and this seal follows that engineering focus with metric sizing and nitrile construction for transmission service. Verify the application against the transmission code and dimensions before installation to ensure the correct seal is selected for the vehicle.