National 224266 Transfer Case Output Shaft Seal - Rear

Overview of National Transfer Case Output Shaft Seal 224266

The National 224266 transfer case output shaft seal is engineered to provide reliable sealing performance for select Nissan and INFINITI vehicles. Designed with durable nitrile material, this oil seal helps maintain proper lubrication and prevents fluid leaks in the transfer case assembly.

• Inside diameter: 1.654 inches (42.000 mm)
• Outside diameter: 2.609 inches (66.280 mm)
• Thickness/width: 0.394 inches (10.000 mm)
• Sealing material: Nitrile for resistance to oil and heat
• Compatible with transfer case output shafts of 1.654 inches (42.000 mm)

Detailed Product Description

The National 224266 transfer case output shaft seal is constructed from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based fluids and high temperatures. This oil seal features precise dimensions including an inside diameter of 1.654 inches and an outside diameter of 2.609 inches, ensuring a secure fit within the housing bore of approximately 2.598 inches (66.000 mm). The 0.394-inch thickness provides a robust sealing surface to prevent oil leakage from the transfer case output shaft area.

This seal is part of National's 220000 series, designed specifically for transfer case applications requiring reliable sealing under demanding conditions. Its compatibility with Nissan and INFINITI models such as the D21, Frontier, Pathfinder, Pathfinder Armada, Pickup, QX4, and Xterra makes it a suitable replacement part for maintaining transfer case integrity.

Common Applications and Problem Solving

• Prevents oil leaks from the transfer case output shaft
• Protects transfer case components from contamination and debris
• Maintains proper lubrication within the transfer case assembly
• Reduces risk of transfer case damage due to fluid loss
• Helps avoid costly repairs related to seal failure

Installation Notes and Tips

When installing the National 224266 transfer case output shaft seal, ensure the housing bore and shaft 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’s orientation matches the original part to maintain proper sealing function. Lubricate the sealing surface lightly with transfer case fluid before installation to reduce initial wear.

Quality Assurance and Warranty

National transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The nitrile material offers resistance to oil and heat, contributing to long service life. While specific warranty details are not provided, National products typically adhere to quality control processes to ensure reliable fitment and function for Nissan and INFINITI transfer case applications.