National 710319 Manual Transmission Output Shaft Seal

Reliable Manual Transmission Output Shaft Seal for Select Vehicles

The National 710319 manual transmission output shaft seal is engineered to provide durable sealing performance for a range of vehicles including Dodge, Jeep, Toyota, and Subaru models. Designed with nitrile material, this oil seal ensures effective protection against leaks and contamination in your transmission system.

• Inside diameter: 1.496 inches (38.000 mm)
• Outside diameter: 2.287 inches (58.100 mm)
• Thickness/width: 0.433 inches (11.000 mm)
• Sealing material: Nitrile for resistance to oil and wear
• Compatible with multiple makes and models including Toyota 4Runner, Subaru BRZ, Jeep Grand Cherokee, and more

Detailed Specifications and Material Construction

This National 710319 output shaft seal belongs to the 710300 series and is constructed from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based oils and transmission fluids. The seal features a precise inside diameter of 1.496 inches (38 mm) and an outside diameter of 2.287 inches (58.1 mm), fitting housing bores measuring approximately 2.283 inches (58 mm). With a thickness of 0.433 inches (11 mm), it provides a secure fit to prevent fluid leakage and contamination in manual transmissions.

Compatible Vehicles and Applications

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

• Dodge Ram 50 and Comanche
• Jeep Cherokee, Grand Cherokee, Wagoneer, and Wrangler
• Toyota 4Runner, Camry, Corolla, Celica, Land Cruiser, RAV4, and Sienna
• Subaru BRZ, Impreza, and WRX
• Mazda Miata and RX series
• Isuzu Trooper and Pickup
• Kia Sportage and Venza
• Lexus RX300, RX330, RX350, RX400h, RX450h
• Mini Cooper
• Mitsubishi Montero and Raider
• Scion FR-S and xB

Common Issues Addressed by the Output Shaft Seal

• Prevents manual transmission fluid leaks around the output shaft
• Protects transmission internals from dirt and debris contamination
• Reduces risk of premature transmission wear due to fluid loss
• Maintains proper lubrication for smooth gear operation
• Helps avoid costly transmission repairs caused by 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 damage
• Verify the seal orientation matches the original part for proper sealing
• Check shaft surface for wear or damage that could affect seal performance
• Apply a light coating of transmission fluid to the seal lip before installation

Quality Assurance and Warranty Information

National manufactures the 710319 output shaft seal to meet industry standards for durability and performance. The nitrile material offers reliable resistance to oil and wear, ensuring long service life in manual transmission applications. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects to provide confidence in your purchase.