National 710159 Transfer Case Input Shaft Seal - Inner

Overview of National Transfer Case Input Shaft Seal 710159

The National 710159 transfer case input shaft seal is engineered to provide reliable sealing performance for select Acura, Honda, Lexus, and Toyota models. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain transfer case integrity and prevent fluid leaks.

• Inside diameter: 1.693 inches (43.000 mm)
• Outside diameter: 2.308 inches (58.620 mm)
• Thickness/width: 0.295 inches (7.500 mm)
• Sealing material: Polyacrylate for enhanced durability
• Compatible with transfer case housing bore of 2.302 inches (58.470 mm)

Detailed Product Description and Specifications

The National 710159 transfer case input shaft seal is part of the 710100 series, designed specifically for transfer case applications requiring a 72-type seal. Constructed from polyacrylate, this oil seal offers resistance to heat and wear, ensuring a tight seal around the input shaft. The precise inside diameter of 1.693 inches (43 mm) matches the shaft size for a secure fit, while the outside diameter of 2.308 inches (58.62 mm) fits the housing bore accurately at 2.302 inches (58.47 mm). With a thickness of 0.295 inches (7.5 mm), this seal maintains proper compression and sealing pressure within the transfer case assembly.

Compatible Vehicles and Applications

This transfer case input shaft seal is compatible with a range of Acura, Honda, Lexus, and Toyota vehicles, including models such as the Acura CL, Honda Accord, Toyota 4Runner, FJ Cruiser, Tacoma, Tundra, and Lexus GX460 and GX470. The part number 710159 ensures correct fitment for these specific models, providing a reliable replacement for worn or damaged seals.

Common Issues Addressed by the Transfer Case Input Shaft Seal

• Prevents transfer case fluid leaks that can lead to low fluid levels
• Reduces contamination of transfer case internals by dirt and debris
• Maintains proper lubrication of the input shaft and bearings
• Helps avoid transfer case overheating due to fluid loss
• Prevents premature wear of transfer case components

Installation Notes and Tips

• Ensure the transfer case housing bore is clean and free of debris before installation
• Use appropriate tools to press the seal evenly into the housing bore without damage
• Verify the shaft and seal dimensions match to avoid leaks or premature failure
• Apply a light coating of transfer case fluid on the seal lip before installation for smoother fit
• Inspect the input shaft for wear or damage prior to installing the new seal

Quality Assurance and Warranty Information

National transfer case input shaft seals are manufactured to meet industry standards for durability and performance. The polyacrylate sealing material provides resistance to heat and chemical degradation, contributing to long service life. This product is backed by National's quality assurance protocols, ensuring consistent fit and function. Warranty coverage details should be confirmed with the product documentation or supplier.