National 8704S Wheel Seal - Rear Outer

Overview of National 8704S Wheel Seal for Chrysler and Dodge

The National 8704S wheel seal is designed to provide reliable sealing performance for select Chrysler and Dodge vehicles. Engineered with nitrile material, this oil seal ensures effective protection against contaminants and fluid leaks in driveline and axle applications.

• Inside diameter: 1.893 inches (48.080 mm)
• Outside diameter: 2.438 inches (61.930 mm)
• Housing bore: 2.434 inches (61.820 mm)
• Width: 0.250 inches (6.350 mm)
• Material: Durable nitrile rubber
• Series: 8000
• Type: 33 oil seal

Technical Details and Specifications

The National 8704S wheel seal is part of the 8000 series, known for its precision fit and durability in automotive sealing systems. Constructed from nitrile, this seal offers resistance to oil, grease, and other automotive fluids, making it suitable for wheel hubs and axle assemblies. The seal’s dimensions—1.893 inch inside diameter and 2.438 inch outside diameter—are engineered to match the shaft and housing bore specifications of compatible vehicles, ensuring a secure and leak-free fit.

Compatible Vehicles and Applications

This wheel seal is compatible with a range of Chrysler and Dodge models, including the 300, Challenger, Charger, Dart, Ramcharger, Town & Country, and various truck models such as D100, D150, W100, and W150. It is designed to maintain proper sealing in driveline and axle assemblies, preventing oil leaks and contamination that can lead to premature wear or failure.

• Prevents oil and grease leakage in wheel hubs
• Protects axle bearings from dirt and moisture
• Maintains driveline integrity under normal operating conditions
• Reduces risk of seal failure due to material degradation

Installation Notes and Tips

When installing the National 8704S 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 vehicle manufacturer’s specifications to maintain optimal sealing performance. Lubricate the seal lip lightly with compatible grease before installation to reduce initial wear.

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 8704S part number undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects, providing confidence in the product’s reliability for Chrysler and Dodge driveline applications.