National 710732 Automatic Transmission Output Shaft Seal - Left or Right

Overview of National 710732 Automatic Transmission Output Shaft Seal

The National 710732 automatic transmission output shaft seal is engineered to provide reliable sealing performance for various Toyota, Lexus, Pontiac, and Scion models. Designed with precision dimensions and durable PTFE material, this seal helps maintain transmission fluid integrity and prevents leaks in critical drivetrain components.

• Inside diameter: 1.969 inches (50.000 mm)
• Outside diameter: 2.685 inches (68.200 mm)
• Thickness: 0.354 inches (9.000 mm)
• Counter-clockwise spiral lip design for enhanced sealing
• Material: PTFE for durability and chemical resistance
• Overall width with side lip: 0.610 inches (15.500 mm)
• Housing bore compatibility: 2.677 inches (68.000 mm)

Detailed Product Description and Specifications

The National 710732 output shaft seal is part of the 710700 series, designed specifically for automatic transmissions requiring a 40-type seal. Its PTFE construction offers excellent wear resistance and chemical stability, ensuring long service life under demanding operating conditions. The counter-clockwise spiral lip design improves sealing efficiency by directing fluid back into the transmission, reducing the risk of leaks. With precise inside and outside diameters, this seal fits securely within the housing bore, maintaining proper alignment on shafts measuring 1.969 inches (50 mm).

Compatible Vehicles and Applications

This transmission output shaft seal is compatible with a range of Toyota, Lexus, Pontiac, and Scion vehicles, including popular models such as the Toyota Camry, Corolla, RAV4, Prius (including Prius C and Prius V), Highlander, Sienna, and Venza. It also fits Lexus ES350, RX350, GX460, and NX series, as well as Pontiac Vibe and Scion tC, xB, and Vibe models. The part number 710732 ensures correct fitment for these applications, helping maintain transmission performance and fluid containment.

Common Issues Addressed by the National 710732 Seal

• Prevents automatic transmission fluid leaks at the output shaft
• Reduces contamination ingress into the transmission system
• Minimizes wear on transmission components by maintaining proper lubrication
• Helps avoid costly transmission repairs due to fluid loss
• Maintains optimal transmission pressure and performance

Installation Notes and Tips

When installing the National 710732 output shaft seal, ensure the shaft and housing bore are clean and free of debris. Use appropriate tools to avoid damaging the PTFE lip during installation. Verify the seal orientation matches the counter-clockwise spiral lip design to ensure proper fluid retention. Lubricate the seal lip lightly with transmission fluid before installation to reduce initial wear. Confirm fitment compatibility with your specific vehicle model and transmission type prior to installation.

Quality Assurance and Warranty Information

National manufactures the 710732 output shaft seal to meet industry standards for durability and performance. The PTFE material and precision engineering contribute to consistent sealing under normal operating conditions. While specific warranty details may vary, National typically offers coverage against manufacturing defects. Consult product documentation or authorized sources for exact warranty terms related to this part number.