National 710731 Automatic Transmission Output Shaft Seal - Rear Outer or Right

Overview of National 710731 Automatic Transmission Output Shaft Seal

The National 710731 automatic transmission output shaft seal is engineered to provide reliable sealing performance for various Toyota, Mazda, Pontiac, and Scion models. Designed with precision dimensions and durable polyacrylate material, this seal helps maintain transmission integrity and prevent fluid leaks.

• Inside diameter: 1.575 inches (40.000 mm)
• Outside diameter: 2.528 inches (64.200 mm)
• Thickness: 0.354 inches (9.000 mm)
• Sealing material: Polyacrylate for enhanced durability
• Clockwise-spiral lip design for effective sealing
• Overall width with side lip: 0.610 inches (15.500 mm)
• Compatible housing bore: 2.520 inches (64.000 mm)

Detailed Product Description

The National 710731 output shaft seal is constructed from polyacrylate, a material known for its resistance to heat and wear, making it suitable for demanding transmission environments. Its clockwise-spiral lip design ensures a tight seal around the output shaft, minimizing the risk of transmission fluid leaks. With precise inside and outside diameters, this seal fits securely within the housing bore, maintaining proper alignment and sealing integrity. The overall width, including the side lip, provides additional protection against contaminants entering the transmission system.

Compatible Vehicles and Applications

This automatic transmission output shaft seal is compatible with a range of vehicles, including Toyota Camry, Corolla, Highlander, Matrix, Prius, Prius C, Prius V, RAV4, and Solara models. It also fits Mazda MX-5 Miata, Pontiac Vibe, and Scion tC and xB models. The part number 710731 ensures you receive the correct seal designed specifically for these applications.

Common Issues Addressed by the National 710731 Seal

• Prevents transmission fluid leaks from the output shaft area
• Reduces contamination ingress that can damage transmission components
• Maintains proper lubrication within the transmission system
• Helps avoid premature wear of transmission bearings and gears
• Supports consistent transmission performance and longevity

Installation Notes and Tips

• Ensure the housing bore and shaft surfaces are clean and free of debris before installation
• Use appropriate tools to avoid damaging the seal during installation
• Verify the seal orientation matches the clockwise-spiral lip design for optimal sealing
• Check shaft and bore dimensions to confirm compatibility with the 1.575 inch (40 mm) shaft and 2.520 inch (64 mm) housing bore
• Apply a light coat of transmission fluid to the seal lip before installation to reduce initial wear

Quality Assurance and Warranty

National transmission seals are manufactured to meet industry standards for durability and performance. The 710731 seal undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.