National 4249 Wheel Seal - Rear Inner

National 4249 Wheel Seal Overview

The National 4249 wheel seal is engineered for reliable driveline protection in Chrysler, Dodge, and Plymouth vehicles. Designed specifically for models like the Caravan, Grand Caravan, Grand Voyager, Town & Country, and Voyager, this oil seal ensures effective sealing and durability.

• Inside diameter: 1.809 inches (45.950 mm)
• Outside diameter: 2.365 inches (60.070 mm)
• Flanged outside diameter: 2.865 inches (72.771 mm)
• Housing bore diameter: 2.361 inches (59.970 mm)
• Width: 0.370 inches (9.398 mm)
• Material: Nitrile rubber for resistance to oil and wear
• Redicoat surface treatment for enhanced corrosion protection
• Part type: Wheel seal, series 4000, type 287

Detailed Product Description

The National 4249 wheel seal is a precision-engineered oil seal designed to maintain the integrity of the driveline system by preventing oil leaks and contamination. Constructed from durable nitrile material, it offers resistance to heat, oil, and wear, which is critical for maintaining performance in demanding automotive environments. The seal features a flanged outside diameter of 2.865 inches (72.771 mm) to ensure a secure fit within the housing bore of 2.361 inches (59.970 mm). Its Redicoat coating provides additional corrosion resistance, extending the service life of the seal. This part is part of National's 4000 series, known for consistent quality and fitment accuracy.

Compatible Vehicles and Applications

This wheel seal is compatible with a range of Chrysler, Dodge, and Plymouth minivans and vans, including the Caravan, Grand Caravan, Grand Voyager, Town & Country, and Voyager models. The precise dimensions and material specifications make it suitable for driveline and axle sealing applications in these vehicles, ensuring proper shaft sealing and preventing fluid leakage.

Common Issues Addressed by National 4249 Wheel Seal

• Prevents oil leaks from the wheel hub assembly
• Protects driveline components from dirt and debris contamination
• Reduces premature wear of axle shafts and bearings
• Maintains proper lubrication within the axle housing
• Helps avoid costly driveline repairs due to seal failure

Installation Notes and Tips

• Ensure the housing bore and shaft surfaces 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 orientation matches the original part to maintain proper sealing function
• Inspect the shaft for wear or damage that could compromise the seal
• Apply a light coating of compatible lubricant on the seal lip before installation

Quality Assurance and Warranty

National 4249 wheel seals are manufactured to meet strict industry standards for durability and fitment. The use of nitrile material and Redicoat treatment ensures resistance to oil, heat, and corrosion. While specific warranty terms may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.