National 710304 Steering Knuckle Seal - Front or Front Lower

Overview of National 710304 Steering Knuckle Seal

The National 710304 steering knuckle seal is engineered to provide reliable sealing performance for heavy-duty vehicles. Designed specifically for select Chevrolet, Dodge, Ford, and GMC models, this oil seal helps maintain proper lubrication and prevent contamination in the steering system.

• Housing Bore Diameter: 2.563 inches (65.100 mm)
• Outside Diameter: 2.567 inches (65.200 mm)
• Shaft Diameter: 1.479 inches (37.570 mm)
• Seal Width: 0.470 inches (11.940 mm)
• Material: Durable nitrile compound for resistance to oil and wear
• Series: 710300, Type 49 oil seal

Detailed Product Description

The National 710304 steering knuckle seal is constructed from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based fluids and abrasion. With precise dimensions including a 2.563-inch housing bore and a 1.479-inch shaft diameter, this seal ensures a tight fit within the steering knuckle assembly. The 0.470-inch width provides adequate sealing surface to prevent oil leaks and ingress of dirt or debris. This part is part of National's 710300 series, designed for durability and consistent performance in demanding steering applications.

Compatible Vehicles and Applications

This steering knuckle seal is compatible with a range of heavy-duty trucks and vans, including Chevrolet F-250 and F-350, Dodge K30 and K3500, Ford V30 and V3500, as well as GMC W200, W250, W300, and W350 models. The National 710304 is specifically designed to meet the sealing requirements of these vehicles' steering systems, ensuring proper function and longevity.

Common Issues Addressed by the National 710304 Seal

• Prevents oil leaks from the steering knuckle housing
• Protects steering components from dirt and contaminants
• Maintains proper lubrication within the steering assembly
• Reduces premature wear of steering shafts and bearings
• Helps avoid steering system failure due to seal degradation

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 direction
• Inspect the shaft for wear or damage that could compromise the seal's effectiveness
• Lubricate the seal lip lightly with compatible oil before installation to reduce initial wear

Quality Assurance and Warranty

National manufactures the 710304 steering knuckle seal to meet industry standards for material quality and dimensional accuracy. The nitrile compound used offers resistance to oil and environmental factors, contributing to reliable service life. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects, ensuring confidence in the part's performance.