National 710324 Manual Transmission Output Shaft Seal

Overview of National Manual Transmission Output Shaft Seal 710324

The National 710324 manual transmission output shaft seal is engineered to provide reliable sealing performance for select Nissan and Subaru vehicles. Designed with durable nitrile material and a counter-clockwise spiral lip, this oil seal helps maintain transmission integrity by preventing fluid leaks.

• Inside diameter: 1.378 inches (35.000 mm)
• Outside diameter: 1.976 inches (50.200 mm)
• Thickness/width: 0.433 inches (11.000 mm)
• Sealing material: Nitrile for resistance to oil and wear
• Helix type: Counter-clockwise spiral lip design for effective sealing
• Housing bore diameter: 1.969 inches (50.000 mm)
• Part number: 710324, Series 710300

Technical Details and Material Specifications

This manual transmission output shaft seal from National is constructed from nitrile, a synthetic rubber known for its resistance to petroleum-based oils and high durability under mechanical stress. The seal features a counter-clockwise spiral lip design that enhances sealing efficiency by directing fluid back into the transmission housing, reducing the risk of leaks. With precise dimensions including a 1.378-inch inside diameter and a 1.976-inch outside diameter, it fits tightly within the housing bore of 1.969 inches, ensuring a secure fit on the output shaft.

Compatible Nissan and Subaru Models

This output shaft seal is compatible with a range of Nissan and Subaru vehicles, including Nissan 200SX, 240SX, 280ZX, 300ZX, 510, 720, 810, D21, Frontier, Maxima, Pathfinder, Pickup, Standard, and Xterra models. It also fits Subaru B9 Tribeca, Baja, Crosstrek, Forester, Impreza, Legacy, Outback, Tribeca, WRX, WRX STI, and XV Crosstrek models. Using the correct seal like part number 710324 ensures proper transmission function and longevity in these vehicles.

Common Applications and Problem Solving

• Prevents manual transmission fluid leaks on output shaft
• Reduces contamination ingress into transmission components
• Maintains proper lubrication within the transmission system
• Helps avoid premature wear of transmission bearings and gears
• Addresses issues related to worn or damaged output shaft seals

Installation Notes and Tips

When installing the National 710324 output shaft seal, ensure the transmission 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 seal orientation matches the counter-clockwise spiral lip design to optimize sealing performance. It is recommended to inspect the output shaft for wear or damage before installation to prevent future leaks.

Quality Assurance and Warranty Information

National manufactures this output shaft seal to meet industry standards for durability and performance. The nitrile material and precise engineering contribute to a reliable seal life under normal operating conditions. Part number 710324 is part of the 710300 series, known for consistent quality in transmission sealing applications. Warranty coverage details should be confirmed with the original equipment manufacturer or distributor.