National 710625 Wheel Seal - Front Inner

Overview of National 710625 Wheel Seal for Ford E-Series

The National 710625 wheel seal is engineered for reliable driveline sealing in Ford E-Series vehicles, including E-150, E-250, and E-350 models. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain axle integrity and prevent leaks.

• Inside diameter: 2.421 inches (61.5 mm)
• Outside diameter: 3.006 inches (76.35 mm)
• Flanged outside diameter: 3.445 inches (87.5 mm)
• Housing bore diameter: 2.998 inches (76.15 mm)
• Overall width with side lip: 0.531 inches (13.5 mm)
• Seal width: 0.276 inches (7 mm)
• Material: Polyacrylate for enhanced durability
• Part type: Oil seal, series 710600

Detailed Product Description

The National 710625 wheel seal is specifically designed to fit Ford E-150, E-250, E-250 Econoline, E-350 Club Wagon, E-350 Econoline, E-350 Econoline Club Wagon, and E-350 Super Duty models. This oil seal features a 90-degree lip type and is constructed from polyacrylate, a material known for its resistance to heat, oil, and wear. The precise inside diameter of 2.421 inches and outside diameter of 3.006 inches ensure a secure fit on the axle shaft and housing bore, which measures approximately 2.998 inches. The flanged outside diameter of 3.445 inches provides additional sealing surface to prevent contamination and fluid leakage. With an overall width of 0.531 inches including the side lip, this seal maintains proper clearance and sealing pressure within the driveline assembly.

Common Applications and Problem Solving

• Prevents axle oil leaks in Ford E-Series driveline systems
• Protects wheel bearings from dirt and moisture contamination
• Maintains proper lubrication within axle housing
• Reduces risk of premature bearing failure due to seal degradation
• Ensures consistent driveline performance under heavy-duty conditions

Installation Notes and Tips

• Verify compatibility with Ford E-150, E-250, and E-350 models before installation
• Clean axle shaft and housing bore thoroughly to remove debris and old sealant
• Use appropriate tools to press the seal evenly without distortion
• Inspect the seal lip for damage before installation to ensure proper sealing
• Apply a thin layer of lubricant on the seal lip to reduce initial wear during startup

Quality Assurance and Warranty

National wheel seals, including part number 710625, are manufactured to meet OEM specifications for fit and function. The polyacrylate material offers resistance to heat and oil degradation, contributing to long service life. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects, ensuring reliability for Ford E-Series driveline maintenance.