National 710699 Automatic Transmission Torque Converter Seal

Automatic Transmission Torque Converter Seal

National 710699 is an automatic transmission torque converter seal built for metric applications that require a precise sealing surface. It uses an ethylene-acrylic material and a clockwise-spiral lip design to help maintain a tight seal at the converter interface in supported Aisin TF-80SC, TF-81SC, and TF-82SC transmissions.

Use this seal when servicing transmission leaks on vehicles such as the Volvo XC60, Mazda 6, or Ford Fusion with the correct Aisin transmission. The National 710699 part number is also a direct reference point for matching the correct seal during transmission repair.

Key Features

• Automatic transmission torque converter seal for metric applications
• Ethylene-acrylic construction for sealing performance in transmission service
• Clockwise-spiral lip design
• Inside diameter: 1.850 in. / 47.000 mm
• Outside diameter: 2.488 in. / 63.200 mm
• Thickness: 0.197 in. / 5.000 mm
• Width: 0.236 in. / 6.000 mm
• Housing bore: 2.480 in. / 63.000 mm
• National 710699 / Series 710600

Product Details

National has supplied sealing solutions for more than 75 years, and this torque converter seal reflects that focus on fit and durability in transmission service. The seal is listed as an oil seal in the 710600 series and is sized for a 47 mm shaft with a 63.2 mm outside diameter, making it a practical choice for rebuilds and leak repairs where exact dimensions matter. National 710699 is used across a wide range of vehicles, including Buick Verano, Chevrolet Cruze, Volvo S80, and Land Rover LR2 applications with the specified Aisin transmission.

This part cross-references Gates 18516 for the same application.

Common Repair Uses

• Transmission fluid leakage at the torque converter seal area
• Seal wear from age, heat, or mileage
• Service replacement during transmission rebuilds
• Leak correction after converter or pump service
• Restoring sealing integrity in Aisin TF-80SC, TF-81SC, and TF-82SC units

Installation Notes

Verify shaft, housing bore, and transmission code before installation. Clean the sealing bore and mating surfaces thoroughly, and inspect the converter hub for scoring or wear that could affect seal life. Confirm the seal orientation matches the clockwise-spiral lip design and install it evenly to avoid distortion. For fitment reference, this seal fits 2013-2015 Buick Verano, 2014-2015 Chevrolet Cruze, 2008-2015 Land Rover LR2, 2011-2015 Volvo S60, 2007-2015 Volvo S80, 2010-2015 Volvo XC60, 2008-2015 Volvo XC70, and 2005-2014 Volvo XC90 with the listed Aisin transmissions.

Quality Assurance

National is a long-established sealing brand with a history of supplying transmission and engine sealing components for service professionals and repair shops. The 710699 seal is engineered to match the listed metric dimensions and application requirements for accurate replacement in supported vehicles.