National 710118 Manual Transmission Output Shaft Seal - Left

Overview of National 710118 Manual Transmission Output Shaft Seal

The National 710118 manual transmission output shaft seal is engineered to provide reliable sealing performance for select INFINITI, Mercury, and Nissan vehicles. Designed with durable nitrile material, this oil seal helps maintain transmission integrity by preventing fluid leaks and contamination.

• Inside diameter: 1.535 inches (39.000 mm)
• Outside diameter: 2.335 inches (59.300 mm)
• Thickness: 0.433 inches (11.000 mm)
• Overall width with side lip: 0.669 inches (17.000 mm)
• Sealing material: Nitrile for enhanced durability and resistance
• Compatible with housing bore size: 2.323 inches (59.000 mm)

Technical Details and Specifications

This National 710118 output shaft seal is part of the 710100 series and is constructed from nitrile, a material known for its resistance to oil, heat, and wear. The seal’s precise dimensions, including a 1.535-inch inside diameter and 2.335-inch outside diameter, ensure a secure fit on the manual transmission output shaft. The 0.433-inch thickness and 0.669-inch overall width with side lip provide effective sealing to prevent oil leakage and protect transmission components from dirt and debris.

Compatible Vehicles and Applications

This manual transmission output shaft seal is compatible with various INFINITI, Mercury, and Nissan models, including the Altima, I30, I35, Maxima, Pulsar NX, Quest, Sentra, Villager, and X-Trail. It is specifically designed to meet the sealing requirements of these vehicles’ manual transmissions, ensuring proper fitment and function.

Common Issues Addressed by the National 710118 Seal

• Prevents manual transmission fluid leaks from the output shaft area
• Protects transmission internals from dirt and contaminants
• Reduces risk of premature transmission wear due to fluid loss
• Maintains proper lubrication within the transmission system
• Helps avoid costly transmission repairs related to seal failure

Installation Notes and Tips

• Ensure the transmission output shaft and housing bore are clean and free of debris before installation
• Verify the seal dimensions match the original part to guarantee proper fit
• Use appropriate tools to press the seal evenly into the housing bore without damage
• Apply a light coating of transmission fluid or compatible lubricant on the seal lip before installation
• Inspect the seal after installation for proper seating and alignment

Quality Assurance and Warranty

National manufactures the 710118 output shaft seal to meet industry standards for durability and performance. The use of nitrile material ensures resistance to oil and heat, contributing to a longer service life. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects, providing confidence in the product’s reliability.