National 1956 Wheel Seal - Rear Outer

Overview of National 1956 Wheel Seal for Toyota Vehicles

The National 1956 wheel seal is designed to provide reliable sealing performance for Toyota 4Runner, Pickup, T100, and Tacoma models. Engineered with nitrile material, this oil seal ensures durability and effective protection against leaks in driveline and axle applications.

• Inside diameter: 1.890 inches (48.000 mm)
• Outside diameter: 2.445 inches (62.100 mm)
• Housing bore: 2.441 inches (62.000 mm)
• Width: 0.354 inches (9.000 mm)
• Material: Nitrile for resistance to oil and wear
• Part number: 1956
• Compatible with Toyota 4Runner, Pickup, T100, and Tacoma

Technical Details and Specifications

The National 1956 wheel seal belongs to the 1000 series and is constructed from nitrile, a synthetic rubber known for its resistance to petroleum-based oils and high temperatures. The seal features an inside diameter of 1.890 inches (48 mm) to fit the shaft precisely, while the outside diameter measures 2.445 inches (62.1 mm) to fit securely within the housing bore of 2.441 inches (62 mm). With a width of 0.354 inches (9 mm), this oil seal maintains a tight barrier to prevent fluid leakage and contamination in the driveline system.

Applications and Problem Solving

This wheel seal is specifically designed for use in Toyota 4Runner, Pickup, T100, and Tacoma models, ensuring compatibility and proper fitment. It addresses common issues such as:

• Preventing oil leaks from axle housings
• Protecting driveline components from dirt and debris
• Maintaining proper lubrication within the axle assembly
• Reducing wear on shafts and bearings
• Minimizing the risk of seal failure due to heat and oil exposure

Installation Notes and Tips

When installing the National 1956 wheel seal, ensure the shaft and housing bore are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without damaging the sealing lip. Verify the seal orientation matches the original part to maintain proper oil retention. Lubricate the sealing lip lightly with clean 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 nitrile material provides resistance to oil, heat, and wear, contributing to a longer service life. Part number 1956 is backed by National's quality control processes, ensuring consistent fit and function for Toyota 4Runner, Pickup, T100, and Tacoma applications.