National 710691 Transfer Case Output Shaft Seal - Rear

Overview of National Transfer Case Output Shaft Seal 710691

The National 710691 transfer case output shaft seal is engineered for reliable sealing performance in Jeep Grand Cherokee vehicles. Designed with precision dimensions and durable materials, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.

• Compatible with Jeep Grand Cherokee transfer cases
• Inside diameter: 1.504 inches (38.2 mm)
• Outside diameter: 2.381 inches (60.47 mm)
• Thickness: 0.362 inches (9.2 mm)
• Fluoro-elastomer sealing material for enhanced durability
• Counter-clockwise spiral lip design for effective sealing
• Fits housing bore size of 2.375 inches (60.33 mm)

Technical Specifications and Design Features

The National 710691 transfer case output shaft seal features a fluoro-elastomer sealing material known for its resistance to heat, oil, and wear. Its counter-clockwise spiral lip design ensures a tight seal around the output shaft, minimizing the risk of fluid leakage. The seal measures 1.504 inches (38.2 mm) on the inside diameter and 2.381 inches (60.47 mm) on the outside diameter, with a thickness of 0.362 inches (9.2 mm). The overall width including the side lip is 0.720 inches (18.3 mm), fitting precisely into a housing bore of 2.375 inches (60.33 mm). These dimensions are critical for maintaining proper sealing in the transfer case assembly of Jeep Grand Cherokee models.

Application and Problem Solving

This transfer case output shaft seal is specifically designed for Jeep Grand Cherokee vehicles, ensuring compatibility and reliable performance. It addresses common issues such as:

• Preventing transfer case fluid leaks that can lead to component damage
• Reducing contamination ingress into the transfer case
• Maintaining proper lubrication of the output shaft
• Minimizing wear on transfer case components due to fluid loss
• Ensuring smooth operation of the drivetrain system

Installation Notes and Tips

When installing the National 710691 seal, ensure the transfer case output shaft and housing bore are clean and free of debris. Proper alignment during installation is essential to avoid damage to the seal lip. Use appropriate tools to press the seal evenly into the housing bore without distortion. Verify the seal’s orientation matches the counter-clockwise spiral lip design for optimal sealing performance. It is recommended to inspect the output shaft for wear or damage before installation to maximize seal longevity.

Quality Assurance and Warranty

National transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The use of fluoro-elastomer material provides resistance to heat and chemical degradation, contributing to a longer service life. Part number 710691 is part of the National 710600 series, known for consistent quality in gaskets and sealing systems. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects, ensuring confidence in the product’s reliability for Jeep Grand Cherokee applications.