National 710546 Automatic Transmission Output Shaft Seal - Left

Overview of National 710546 Automatic Transmission Output Shaft Seal

The National 710546 automatic transmission output shaft seal is engineered to provide reliable sealing performance for a range of vehicles including Buick, Cadillac, Chevrolet, Ford, GMC, Lincoln, Mazda, Mercury, Pontiac, Saab, Saturn, and Suzuki models. Designed with precision dimensions and durable polyacrylate material, this seal helps maintain transmission fluid integrity and prevents leaks.

• Inside diameter: 1.378 inches (35.000 mm)
• Outside diameter: 2.807 inches (71.300 mm)
• Flanged outside diameter: 3.055 inches (77.600 mm)
• Thickness: 0.512 inches (13.000 mm)
• Bi-directional lip design for effective sealing
• Material: Polyacrylate for enhanced durability
• Compatible with multiple vehicle makes and models

Detailed Product Description and Specifications

The National 710546 output shaft seal is part of the 710500 series and features a bi-directional lip design that ensures effective sealing against transmission fluid leaks in both rotational directions. Its polyacrylate construction offers resistance to heat and wear, making it suitable for demanding transmission environments. The seal fits shafts with an inside diameter of 1.378 inches (35 mm) and housings with a bore diameter of approximately 2.795 inches (71 mm). The flanged outside diameter of 3.055 inches (77.6 mm) provides a secure fit within the transmission housing, while the 0.512 inch (13 mm) thickness contributes to its sealing integrity.

Compatible Vehicles and Applications

This automatic transmission output shaft seal is compatible with a wide range of vehicles, including but not limited to:

• Buick models such as LaCrosse and Regal
• Cadillac models including SRX, XTS, and CTS
• Chevrolet vehicles like Equinox, Malibu, and Traverse
• Ford models including Edge, Explorer, Fusion, and Taurus
• GMC vehicles such as Terrain and Acadia
• Lincoln models including MKS, MKT, and MKX
• Mazda CX-9
• Mercury Sable and Mountaineer
• Pontiac G6 and Torrent
• Saab 9-4X
• Saturn Vue
• Suzuki XL-7

Common Issues Addressed by the National 710546 Seal

• Prevents transmission fluid leaks from the output shaft area
• Reduces risk of contamination entering the transmission system
• Maintains proper fluid pressure for smooth transmission operation
• Minimizes wear on transmission components caused by fluid loss
• Helps avoid costly transmission repairs due to seal failure

Installation Notes and Tips

• Ensure the transmission housing bore and shaft are clean and free of debris before installation
• Use appropriate tools to avoid damaging the seal during installation
• Verify the seal orientation matches the bi-directional lip design for optimal performance
• Check shaft and bore dimensions to confirm compatibility with the 710546 seal
• Apply a light coating of transmission fluid to the seal lips before installation to reduce initial wear

Quality Assurance and Warranty Information

Manufactured by National, a trusted brand in gaskets and sealing systems, the 710546 output shaft seal meets industry standards for durability and performance. The polyacrylate material and precise engineering ensure long-lasting service life under normal operating conditions. Warranty coverage details should be confirmed with the original equipment manufacturer or supplier.