National 710994 Axle Output Shaft Seal - Rear, Rear Left or Rear Right

Overview of National 710994 Axle Output Shaft Seal

The National 710994 axle output shaft seal is engineered to provide reliable sealing performance for driveline components. Designed with a bi-directional lip and made from durable polyacrylate material, this oil seal is compatible with various Audi, Bentley, Chrysler, Dodge, Jeep, Porsche, and Volkswagen models.

• Constructed from high-quality polyacrylate for enhanced durability
• Bi-directional helix lip design ensures effective sealing in both rotational directions
• Housing bore diameter of 82.0 mm (3.228 inches) for precise fitment
• Outside diameter measures 82.25 mm (3.238 inches) for secure installation
• Overall width with side lip is 13 mm (0.512 inches) for optimal sealing coverage
• Shaft diameter of 50 mm (1.969 inches) compatible with specified driveline shafts
• Part of the 710900 series, designed for axle output shaft sealing applications

Detailed Product Description

The National 710994 axle output shaft seal is specifically designed to maintain the integrity of the axle assembly by preventing oil leaks and contamination ingress. Its polyacrylate construction offers resistance to heat, wear, and automotive fluids, ensuring long service life. The bi-directional helix lip design provides effective sealing against both inward and outward pressures, which is critical for axle shafts subjected to varying rotational forces. With precise dimensions including an 82 mm housing bore and a 50 mm shaft diameter, this seal fits securely in the axle housing, minimizing the risk of premature failure.

Compatible Vehicles and Applications

This axle output shaft seal is compatible with a range of vehicles including Audi Q7, Porsche Cayenne, Macan, Panamera, and 911 models, Bentley Continental and Flying Spur, Chrysler 300, Dodge Challenger and Charger, Jeep Grand Cherokee and Durango, as well as Volkswagen Touareg and Phaeton. The part number 710994 ensures correct fitment for these models, providing a reliable replacement for worn or damaged axle seals.

Common Issues Addressed by the National 710994 Seal

• Prevents oil leaks from the axle output shaft area
• Protects driveline components from dirt and debris contamination
• Reduces risk of axle bearing damage due to lubricant loss
• Maintains proper lubrication within the axle assembly
• Helps avoid costly driveline repairs caused by seal failure

Installation Notes and Tips

• Ensure the axle shaft and housing bore are clean and free of debris before installation
• Use appropriate tools to press the seal evenly into the housing bore without distortion
• Verify the seal’s orientation matches the bi-directional lip design for optimal performance
• Inspect the shaft surface for wear or damage that could compromise the seal
• Apply a light coating of compatible lubricant on the seal lip prior to installation

Quality Assurance and Warranty

National axle output shaft seals are manufactured to meet stringent OEM specifications, ensuring consistent quality and performance. The 710994 seal undergoes rigorous testing for dimensional accuracy and material integrity. While specific warranty terms may vary, National products typically include coverage against manufacturing defects to provide confidence in durability and reliability.