National 1012N Wheel Seal

Overview of National 1012N Wheel Seal

The National 1012N wheel seal is engineered for reliable driveline sealing in various vehicle models including Audi, BMW, Ford, and Mercedes-Benz. Designed with nitrile material, this oil seal ensures effective protection against contaminants and fluid leaks.

• Inside diameter: 1.772 inches (45.000 mm)
• Outside diameter: 2.453 inches (62.300 mm)
• Thickness/width: 0.315 inches (8.000 mm)
• Sealing material: Durable nitrile for resistance to oil and heat
• Compatible with multiple makes and models including Audi A6 Quattro, BMW M3, Ford Aspire, and Mercedes-Benz 300SEL

Technical Specifications and Material Details

The National 1012N wheel seal features a 35-type design from the 1000 series, constructed from nitrile material known for its flexibility and resistance to wear. The seal’s inside diameter measures 1.772 inches (45 mm), fitting shafts of the same size, while the outside diameter is 2.453 inches (62.3 mm), matching housing bores around 2.441 inches (62 mm). With a thickness of 0.315 inches (8 mm), this seal provides a secure fit to prevent oil leakage and contamination in driveline and axle assemblies.

Compatible Vehicles and Applications

This wheel seal is compatible with a wide range of vehicles, including but not limited to:

• Audi models such as A6 and A6 Quattro
• BMW models including 228i, M3, M5, 740i, and 850CSi
• Ford Aspire and Festiva
• Mercedes-Benz 300SEL, 380SE, 430i, and 540i
• Other makes like Maserati, Mazda, Mercury, Porsche, Saab, and Volkswagen

Common Issues Addressed by the National 1012N Wheel Seal

• Prevents oil leaks from axle and driveline components
• Protects bearings and shafts from dirt and moisture intrusion
• Reduces wear caused by contaminants in wheel assemblies
• Maintains proper lubrication within the axle housing
• Helps avoid costly drivetrain repairs due to seal failure

Installation Notes and Tips

Ensure the shaft and housing bore are clean and free of debris before installation. The National 1012N seal should be pressed evenly into the housing bore to avoid distortion. Use appropriate tools to avoid damaging the nitrile sealing lip. Verify the seal orientation matches the oil side to ensure proper sealing performance.

Quality Assurance and Warranty

Manufactured by National, a trusted name in driveline sealing systems, the 1012N wheel seal meets industry standards for durability and performance. The nitrile material offers resistance to oil, heat, and wear, contributing to long service life. Warranty coverage details should be confirmed with the product documentation or supplier.