National 471737 Drive Axle Shaft Seal - Front Right

Overview of National 471737 Drive Axle Shaft Seal

The National 471737 drive axle shaft seal is engineered to provide reliable sealing performance for various automotive driveline applications. Constructed from durable nitrile material, this oil seal is designed to maintain optimal protection against leaks and contamination in axle assemblies.

• Material: High-quality nitrile for resistance to oil and wear
• Inside Diameter: 1.250 inches (31.750 mm)
• Outside Diameter: 1.878 inches (47.700 mm)
• Thickness/Width: 0.250 inches (6.350 mm)
• Housing Bore Compatibility: 1.874 inches (47.600 mm)
• Redicoat coating for enhanced durability
• Part Number: 471737

Detailed Product Description

The National 471737 drive axle shaft seal is part of the 470000 series, designed specifically for driveline and axle sealing systems. Its nitrile construction offers excellent resistance to petroleum-based fluids and mechanical wear, making it suitable for use in demanding automotive environments. The seal’s precise dimensions, including a 1.250-inch inside diameter and 1.878-inch outside diameter, ensure a secure fit within the axle housing bore of approximately 1.874 inches. The 0.250-inch thickness provides a robust barrier against oil leakage, while the Redicoat treatment enhances the seal’s longevity by protecting against corrosion and abrasion.

Common Applications and Problem Solving

• Prevents oil leaks in drive axle assemblies
• Protects axle shafts from dirt and debris contamination
• Maintains proper lubrication within the axle housing
• Reduces wear on axle components by sealing fluids effectively
• Addresses common seal failure issues in vehicles such as Ford F-150 and Chevrolet Silverado

Installation Notes and Tips

When installing the National 471737 drive axle shaft seal, ensure the axle shaft and housing bore are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore to avoid distortion. Verify the seal’s orientation matches the vehicle manufacturer’s specifications to maintain optimal sealing performance. This part is compatible with various Ford and Chevrolet models requiring a 1.250-inch shaft seal.

Quality Assurance and Warranty

National manufactures the 471737 seal to meet industry standards for durability and performance. The part is a zero duplication component, ensuring unique fitment and reliability. While specific warranty details are not provided, National’s reputation in driveline sealing systems supports consistent quality and long service life.