National 710798 Manual Transmission Output Shaft Seal - Rear or Rear Left

Reliable Manual Transmission Output Shaft Seal for Acura, Ford, and Honda

The National 710798 manual transmission output shaft seal is engineered to provide durable sealing performance for select Acura, Ford, and Honda models. Designed with precision dimensions and a bi-directional lip design, this oil seal helps maintain transmission integrity and prevent fluid leaks.

• Inside diameter options: 1.575 inch (40.000 mm)
• Outside diameter: 2.173 inch (55.200 mm)
• Thickness: 0.295 inch (7.500 mm)
• Sealing material: Polyacrylate for enhanced durability
• Bi-directional helix lip design for effective sealing in both rotational directions
• Overall width with side lip: 0.472 inch (12.000 mm)
• Compatible housing bore: 2.165 inch (55.000 mm)

Detailed Product Description and Specifications

The National 710798 output shaft seal is constructed from polyacrylate, a material known for its resistance to heat, oil, and wear, making it suitable for demanding transmission environments. The seal features a bi-directional helix lip design that ensures reliable sealing against contaminants and fluid leakage regardless of shaft rotation direction. With an inside diameter of 1.575 inches (40 mm) and an outside diameter of 2.173 inches (55.2 mm), this seal fits precisely into housings with a bore diameter of 2.165 inches (55 mm). The thickness of 0.295 inches (7.5 mm) and an overall width including the side lip of 0.472 inches (12 mm) provide a secure fit and effective sealing surface.

Compatible Vehicles and Applications

This manual transmission output shaft seal is compatible with various Acura, Ford, and Honda models, including:

• Acura MDX, RDX, and RLX
• Ford Fiesta and Focus
• Honda Crosstour, Pilot, and Ridgeline

It is designed to replace worn or damaged seals in these vehicles’ manual transmissions, helping to maintain proper fluid retention and prevent contamination.

Common Issues Addressed by the National 710798 Seal

• Prevents manual transmission fluid leaks from the output shaft area
• Reduces risk of contamination entering the transmission
• Minimizes premature wear of transmission components due to fluid loss
• Maintains proper lubrication and pressure within the transmission system
• Helps avoid costly transmission repairs caused by seal failure

Installation Notes and Tips

When installing the National 710798 output shaft seal, ensure the housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the sealing lip. Verify the shaft diameter matches the seal’s inside diameter of 1.575 inches (40 mm) for proper fitment. Avoid using excessive force during installation to maintain the integrity of the polyacrylate material and bi-directional lip design.

Quality Assurance and Warranty

National manufactures the 710798 output shaft seal to meet industry standards for durability and performance. The polyacrylate material and precision engineering provide reliable sealing under typical operating conditions. While specific warranty details are not provided, National products are generally backed by quality control processes to ensure consistent fit and function for compatible Acura, Ford, and Honda models.