National 710173 Manual Transmission Output Shaft Seal - Front or Left

Overview of National 710173 Manual Transmission Output Shaft Seal

The National 710173 manual transmission output shaft seal is engineered to provide reliable sealing performance for a variety of vehicle makes and models. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain transmission integrity and prevent fluid leaks in vehicles such as the Honda Accord, Toyota Land Cruiser, and Chevrolet Corvette.

• Inside diameter: 1.969 inches (50.000 mm)
• Outside diameter: 2.764 inches (70.200 mm)
• Thickness: 0.394 inches (10.000 mm)
• Sealing material: Polyacrylate for enhanced durability
• Helix type: Clockwise-spiral lip design for effective sealing
• Overall width with side lip: 0.630 inches (16.000 mm)
• Compatible with multiple makes including Acura, Buick, Jeep, Kia, Lexus, Oldsmobile, Pontiac, Porsche, and more

Detailed Product Description

The National 710173 output shaft seal is part of the 710100 series, designed specifically for manual transmissions requiring a 1.969-inch (50 mm) shaft diameter. Constructed from polyacrylate, this seal offers resistance to heat and wear, ensuring long-lasting performance under demanding conditions. The clockwise-spiral lip design enhances sealing efficiency by maintaining consistent contact with the shaft, reducing the risk of oil leaks and contamination. With an outside diameter of 2.764 inches (70.200 mm) and a thickness of 0.394 inches (10.000 mm), this seal fits precisely into housings with a bore diameter of approximately 2.756 inches (70 mm).

Compatible Vehicles and Applications

This manual transmission output shaft seal is compatible with a wide range of vehicles, including but not limited to:

• Honda Accord
• Toyota Land Cruiser and LX450/LX470
• Chevrolet Corvette and Grand Am
• Acura TL
• Jeep Wagoneer
• Buick LeSabre and Regal
• Pontiac Grand LeMans and Parisienne
• Porsche Carrera GT

Common Issues Addressed by the National 710173 Seal

• Prevents manual transmission fluid leaks from the output shaft area
• Reduces contamination ingress that can damage transmission components
• Minimizes wear on the output shaft by maintaining proper lubrication
• Helps maintain transmission pressure and performance
• Prevents premature seal failure due to heat and friction

Installation Notes and Tips

• Ensure the housing bore is clean and free of debris before installation
• Use proper tools to avoid damaging the seal during installation
• Verify shaft diameter matches the 1.969-inch specification for correct fit
• Apply a light coating of transmission fluid or compatible lubricant to the seal lip before installation
• Check for proper seating and alignment to prevent leaks

Quality Assurance and Warranty

National manufactures the 710173 output shaft seal to meet industry standards for durability and performance. The polyacrylate material and precise engineering contribute to a reliable seal designed for extended service life. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in the product.