National 416273 Wheel Seal - Front or Front Inner

Overview of National 416273 Wheel Seal

The National 416273 wheel seal is engineered for reliable driveline protection in select Chevrolet, Ford, and Jeep vehicles. Designed to maintain optimal sealing performance, this oil seal supports the integrity of your axle assembly in models like the Ford F-250, F-350, Chevrolet K20, and Jeep J20.

• Inside diameter: 2.500 inches (63.5 mm)
• Outside diameter: 3.628 inches (92.15 mm)
• Thickness/width: 0.375 inches (9.53 mm)
• Sealing material: durable nitrile compound
• Redicoat finish for enhanced corrosion resistance
• Compatible with housing bore approximately 3.623 inches (92.02 mm)
• Part number: 416273, series 410000, type 41

Technical Details and Material Specifications

This National wheel seal features a nitrile sealing material known for its resistance to oil, heat, and wear, making it suitable for heavy-duty applications in trucks and SUVs. The precise dimensions, including a 2.5-inch shaft diameter and 3.628-inch outside diameter, ensure a secure fit within the axle housing bore. The Redicoat treatment adds a protective layer to prevent corrosion and extend service life. This oil seal is a zero duplication part, ensuring authenticity and compatibility with specified vehicle models.

Compatible Vehicles and Applications

The National 416273 wheel seal is compatible with various Chevrolet, Ford, and Jeep models, specifically:

• Chevrolet K20 and K20 Suburban
• Ford F-250 and F-350
• Jeep J20

It is designed to maintain axle integrity by preventing oil leaks and contamination in these driveline systems.

Common Issues Addressed by This Wheel Seal

• Prevents oil leakage from axle assemblies
• Protects against dirt and debris intrusion
• Reduces premature wear of axle components
• Maintains proper lubrication within the driveline
• Helps avoid costly axle repairs due to seal failure

Installation Notes and Tips

• Ensure the housing bore and shaft are clean and free of debris before installation
• Use appropriate tools to avoid damaging the seal during installation
• Verify the seal orientation matches the original part for proper sealing
• Check shaft and bore dimensions to confirm compatibility
• Apply a light coating of lubricant on the seal lip to ease installation

Quality Assurance and Warranty

National wheel seals are manufactured to meet OEM specifications, providing reliable sealing performance for your vehicle's driveline. The 416273 part is backed by National's quality standards, ensuring durability and fitment accuracy. While specific warranty terms may vary, National products typically include coverage against manufacturing defects to support long-term use.