National 711113 Transfer Case Input Shaft Seal - Right

Overview of National Transfer Case Input Shaft Seal 711113

The National 711113 Transfer Case Input Shaft Seal is engineered to provide reliable sealing performance for transfer cases in select Buick, Chevrolet, GMC, Pontiac, and Saturn vehicles. Designed with a bi-directional lip, this oil seal ensures effective containment of lubricants and protection against contaminants.

• Bi-directional lip design for enhanced sealing efficiency
• Constructed from durable fluoro-elastomer material
• Housing bore diameter: 2.441 inches (62.000 mm)
• Outside diameter: 2.449 inches (62.200 mm)
• Shaft diameter: 1.890 inches (48.000 mm)
• Seal width: 0.650 inches (16.500 mm)
• Part number 711113, part of the 711100 series

Technical Details and Material Specifications

This transfer case input shaft seal features a fluoro-elastomer construction, known for its resistance to heat, oil, and chemical degradation, making it suitable for demanding automotive environments. The bi-directional lip design provides sealing capability in both rotational directions, reducing the risk of leaks. With precise dimensions including a 2.441-inch housing bore and a 1.890-inch shaft diameter, this seal is engineered to fit transfer cases on various models such as the Chevrolet Equinox, GMC Terrain, and Buick Enclave.

Compatible Vehicles and Applications

The National 711113 seal is compatible with transfer cases on multiple GM makes and models, including:

• Buick Acadia and Acadia Limited
• Chevrolet Captiva Sport, Equinox, and Traverse
• GMC Terrain and Torrent
• Pontiac VUE
• Saturn Outlook

This part is specifically designed to maintain transfer case integrity by preventing oil leaks and contamination in these vehicles.

Common Issues Addressed by This Seal

• Prevents oil leaks from the transfer case input shaft
• Protects transfer case internals from dirt and debris ingress
• Reduces wear caused by lubricant loss
• Maintains proper lubrication pressure within the transfer case
• Helps avoid costly transfer case repairs due to seal failure

Installation Notes and Tips

When installing the National 711113 transfer case input shaft seal, ensure the housing bore and shaft are clean and free of debris. Use appropriate tools to press the seal evenly into place without distortion. Verify the seal orientation matches the bi-directional lip design for optimal performance. It is recommended to inspect the transfer case components for wear or damage during installation and replace any compromised parts.

Quality Assurance and Warranty

National transfer case seals are manufactured to meet OEM specifications, ensuring reliable fit and function. The fluoro-elastomer material provides durability under high temperature and chemical exposure. This product is backed by National's quality standards, offering confidence in long-term performance. Please refer to National's warranty policy for specific coverage details.