National 710314 Automatic Transmission Output Shaft Seal - Left

Reliable Automatic Transmission Output Shaft Seal for Acura and Honda

The National 710314 automatic transmission output shaft seal is engineered to provide a precise fit and durable sealing solution for various Acura and Honda models. Designed with a counter-clockwise spiral lip, this seal ensures effective oil retention and protection against contaminants.

• Inside diameter: 1.378 inches (35.000 mm)
• Outside diameter: 2.213 inches (56.200 mm)
• Thickness: 0.315 inches (8.000 mm)
• Material: Polyacrylate for enhanced durability
• Helix type: Counter-clockwise spiral lip design for optimal sealing
• Overall width with side lip: 0.453 inches (11.500 mm)
• Housing bore diameter: 2.205 inches (56.000 mm)

Detailed Product Description

The National 710314 output shaft seal is part of the 710300 series, designed specifically for automatic transmissions in select Acura and Honda vehicles including the Accord, Civic, Civic del Sol, CR-V, CSX, EL, Fit, Insight, Integra, and Prelude. Constructed from polyacrylate, this oil seal offers resistance to heat and wear, maintaining a secure barrier to prevent transmission fluid leaks. The counter-clockwise spiral lip design enhances sealing performance by directing fluid back into the transmission, reducing the risk of contamination and premature wear.

Common Applications and Problem Solving

• Prevents transmission fluid leaks from the output shaft area
• Protects transmission internals from dirt and debris ingress
• Maintains proper lubrication for transmission components
• Reduces risk of transmission overheating due to fluid loss
• Helps avoid costly transmission repairs related to seal failure

Installation Notes and Tips

Ensure the housing bore and shaft are clean and free of debris before installation. Use appropriate tools to press the seal evenly into the bore without damaging the lip. Verify the seal orientation matches the counter-clockwise spiral lip design for correct fluid retention. Avoid using excessive force during installation to prevent seal deformation.

Quality Assurance and Warranty

National transmission seals are manufactured to meet OEM specifications, ensuring reliable performance and fitment. The 710314 seal undergoes rigorous quality control to maintain dimensional accuracy and material integrity. Warranty coverage details should be confirmed with the product documentation or supplier.