National 3385 Wheel Seal - Rear Inner

Overview of National 3385 Wheel Seal for Ford E-350 Econoline

The National 3385 wheel seal is designed specifically for Ford E-350 Econoline and E-350 Econoline Club Wagon models. Engineered to provide reliable sealing performance, this oil seal helps maintain driveline integrity and prevent leaks in demanding automotive applications.

• Inside diameter: 3.180 inches (80.770 mm)
• Outside diameter: 4.185 inches (106.300 mm)
• Flanged outside diameter: 4.440 inches (112.776 mm)
• Width: 0.750 inches (19.050 mm)
• Material: Durable nitrile compound
• Bi-directional lip design for enhanced sealing
• Redicoat coating for corrosion resistance
• Compatible with housing bore of 4.180 inches (106.170 mm)

Detailed Product Description

The National 3385 wheel seal is part of the 3000 series and features a 74-type design optimized for driveline and axle sealing applications. Constructed from nitrile material, it offers resistance to oil, grease, and other automotive fluids. The bi-directional lip design ensures effective sealing against contaminants and fluid leakage in both rotational directions. The redicoat finish provides additional protection against corrosion, extending the service life of the seal. With precise dimensions including a 3.180-inch shaft diameter and a 4.185-inch outside diameter, this seal fits securely within the housing bore of 4.180 inches, ensuring a tight and reliable fit for Ford E-350 Econoline and E-350 Econoline Club Wagon vehicles.

Common Applications and Problem Solving

• Prevents oil leaks from wheel hubs and axle assemblies
• Protects driveline components from dirt and moisture intrusion
• Reduces wear on axle shafts by maintaining proper lubrication
• Helps avoid costly repairs due to seal failure or contamination
• Maintains vehicle drivability by ensuring proper axle sealing

Installation Notes and Tips

• Ensure the housing bore and shaft are clean and free of debris before installation
• Use appropriate tools to avoid damaging the seal lips during installation
• Verify the seal orientation matches the bi-directional lip design for optimal performance
• Check for proper fitment with the 4.180-inch housing bore and 3.180-inch shaft diameter
• Apply a light coating of lubricant on the seal lip to ease installation and prevent damage

Quality Assurance and Warranty

National wheel seals, including part number 3385, are manufactured to meet industry standards for durability and performance. The use of nitrile material and redicoat corrosion protection ensures long-lasting service life under typical operating conditions. While specific warranty details may vary, National products generally come with a limited warranty against manufacturing defects, providing confidence in the reliability of this wheel seal for Ford E-350 Econoline and E-350 Econoline Club Wagon applications.