National 223605 Wheel Seal - Front or Rear Inner

National 223605 Wheel Seal Overview

The National 223605 wheel seal is engineered for reliable sealing performance in Toyota driveline systems. Designed specifically for Toyota Land Cruiser and Tercel models, this oil seal helps maintain optimal axle function by preventing lubricant leaks and contamination.

• Inside diameter: 1.417 inches (36.000 mm)
• Outside diameter: 1.972 inches (50.080 mm)
• Thickness: 0.276 inches (7.000 mm)
• Sealing material: Durable nitrile compound
• Redicoat surface treatment for enhanced wear resistance
• Compatible with housing bore size of 1.969 inches (50.000 mm)
• Part type: Wheel seal, series 220000, type 47

Technical Details and Material Specifications

This National wheel seal (part number 223605) is constructed from nitrile, a synthetic rubber known for its resistance to oil, heat, and abrasion. The seal features a Redicoat coating that improves durability and extends service life by reducing friction and wear. With precise dimensions—1.417 inch inside diameter and 1.972 inch outside diameter—this seal fits tightly within the housing bore of 1.969 inches, ensuring a secure and leak-free installation. The 0.276 inch thickness provides adequate sealing surface area to maintain axle lubrication integrity.

Compatible Toyota Models and Applications

Compatible with Toyota Land Cruiser and Toyota Tercel vehicles, the National 223605 wheel seal is designed to meet the specific requirements of these driveline and axle systems. It is ideal for replacing worn or damaged seals to prevent oil leaks and contamination that can lead to premature axle wear or failure.

• Prevents oil leakage from axle assemblies
• Protects driveline components from dirt and debris ingress
• Maintains proper lubrication for wheel bearings and axle shafts
• Reduces risk of axle overheating due to lubricant loss
• Helps avoid costly driveline repairs caused by seal failure

Installation Notes and Tips

When installing the National 223605 wheel seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into the bore without damaging the sealing lip. Verify the seal orientation matches the original installation to maintain proper sealing function. Lubricate the seal lip lightly with clean axle oil before installation to reduce initial wear.

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 223605 part includes a Redicoat treatment to enhance wear resistance. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects, ensuring reliability for Toyota Land Cruiser and Tercel driveline maintenance.