National 710455 Axle Spindle Seal - Front Outer

Overview of National 710455 Axle Spindle Seal

The National 710455 axle spindle seal is engineered to provide reliable sealing performance for select Ford and Mazda vehicles. Designed with precision dimensions and durable nitrile material, this oil seal helps maintain axle integrity and prevent fluid leaks in demanding driveline applications.

• Flanged outside diameter: 2.193 inches (55.7 mm)
• Housing bore diameter: 1.850 inches (47.0 mm)
• Outside diameter: 1.858 inches (47.2 mm)
• Shaft diameter: 1.260 inches (32.0 mm)
• Seal width: 0.339 inches (8.6 mm)
• Material: Nitrile for resistance to oil and wear
• Series: 710400, Type 298 oil seal

Detailed Product Description

This National axle spindle seal (part number 710455) is constructed from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based fluids and abrasion. The seal features a flanged outside diameter of 2.193 inches (55.7 mm) and a housing bore of 1.850 inches (47.0 mm), ensuring a secure fit within the axle housing. The shaft diameter of 1.260 inches (32.0 mm) and overall width of 0.339 inches (8.6 mm) are designed to match the specifications required for proper sealing and durability. This seal is part of National's 710400 series, which focuses on high-quality sealing solutions for driveline and axle applications.

Compatible Vehicles and Applications

The National 710455 axle spindle seal is compatible with a range of Ford and Mazda models, including the Ford B2300, B3000, B4000, Bronco, Explorer, F-150, Ranger, and the Mazda Navajo. It is specifically designed to meet the sealing requirements of these vehicles' axle assemblies, helping to maintain proper lubrication and prevent contamination.

Common Issues Addressed by This Axle Spindle Seal

• Prevents oil leaks from axle spindle areas
• Protects axle bearings from dirt and debris ingress
• Maintains proper lubrication within the axle housing
• Reduces risk of premature axle component wear
• Helps avoid costly driveline repairs due to seal failure

Installation Notes and Tips

When installing the National 710455 axle spindle seal, ensure the axle spindle 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. Lubricate the seal lip with clean axle oil before installation to reduce initial wear. Verify the seal is fully seated and aligned to prevent leaks. Follow vehicle-specific service manual instructions for torque specifications and installation procedures.

Quality Assurance and Warranty

National axle spindle seals are manufactured to meet industry standards for durability and performance. The nitrile material provides resistance to oil and wear, contributing to long service life. While specific warranty details may vary, National products typically come with a limited warranty against defects in material and workmanship. Consult product documentation or authorized sources for exact warranty terms.