National 1941 Wheel Seal - Front

Overview of National 1941 Wheel Seal for Lexus and Toyota

The National 1941 wheel seal is engineered to provide reliable sealing performance for select Lexus and Toyota models. Designed with precision nitrile material, this oil seal ensures effective protection against contaminants and fluid leaks in driveline and axle applications.

• Inside diameter: 1.969 inches (50.000 mm)
• Outside diameter: 3.071 inches (77.700 mm)
• Overall width with side lip: 0.551 inches (14.000 mm)
• Width: 0.354 inches (9.000 mm)
• Material: Durable nitrile rubber for resistance to oil and wear
• Series: 1000, Type: 47

Detailed Product Description and Specifications

The National 1941 wheel seal is constructed from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based oils and high temperatures. With an inside diameter of 1.969 inches and an outside diameter of 3.071 inches, this seal fits precisely within the housing bore measuring approximately 3.051 inches (77.500 mm). The overall width, including the side lip, is 0.551 inches, providing a secure fit that helps maintain axle integrity and prevents oil leakage.

This oil seal is part of National's 1000 series, designed specifically for driveline and axle sealing systems. Its Type 47 configuration ensures compatibility with shafts measuring 1.969 inches in diameter, making it suitable for various Lexus and Toyota vehicles.

Compatible Vehicles and Applications

This wheel seal is compatible with multiple Lexus and Toyota models, including:

• Lexus GS300, GS400, GS430
• Lexus LS400
• Lexus SC300, SC400, SC430
• Toyota Supra

It is designed to maintain proper sealing in the driveline and axle assemblies of these vehicles, helping to prevent contamination and fluid loss.

Common Issues Addressed by National 1941 Wheel Seal

• Prevents oil leaks from axle and driveline components
• Protects against dirt, dust, and moisture intrusion
• Reduces wear on axle shafts by maintaining lubrication
• Helps avoid premature seal failure due to heat and chemical exposure
• Maintains proper pressure balance within the axle housing

Installation Notes and Tips

• Ensure the shaft and housing bore are clean and free of debris before installation
• Use appropriate tools to avoid damaging the seal lip during installation
• Verify the seal orientation matches the original part to maintain proper sealing
• Lubricate the seal lip lightly with compatible oil to ease installation and prevent dry running
• Check for proper fit and alignment to avoid leaks and premature wear

Quality Assurance and Warranty Information

National wheel seals are manufactured to meet industry standards for durability and performance. The 1941 part number undergoes rigorous quality control to ensure consistent dimensions and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.