National 710927 Wheel Seal - Rear or Rear Inner

Overview of National 710927 Wheel Seal for Chevrolet and GMC Trucks

The National 710927 wheel seal is engineered to provide reliable sealing performance for heavy-duty Chevrolet and GMC trucks. Designed specifically for models like the Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, Silverado 3500 HD, and Suburban 3500 HD, this oil seal helps maintain driveline integrity under demanding conditions.

• Flanged outside diameter: 4.240 inches (107.7 mm)
• Housing bore diameter: 3.996 inches (101.5 mm)
• Shaft diameter: 2.961 inches (75.2 mm)
• Overall width with side lip: 0.610 inches (15.5 mm)
• Material: durable fluoro-elastomer for enhanced resistance
• Bi-directional lip design for effective sealing
• Part number: 710927, series 710900

Technical Details and Material Specifications

This wheel seal features a bi-directional lip design that ensures effective sealing against contaminants and fluid leakage in both rotational directions. The fluoro-elastomer material offers excellent resistance to heat, oil, and chemicals, making it suitable for the harsh environments encountered in heavy-duty truck applications. With a flanged outside diameter of 4.240 inches and a housing bore of 3.996 inches, the seal fits precisely within the axle assembly. The shaft diameter of 2.961 inches and overall width of 0.433 inches provide a secure fit to maintain optimal sealing performance.

Compatible Vehicles and Applications

This National 710927 wheel seal is compatible with a range of Chevrolet and GMC heavy-duty trucks, including:

• Chevrolet Sierra 2500 HD and 3500 HD
• Chevrolet Silverado 2500 HD and 3500 HD
• GMC Sierra 2500 HD and 3500 HD
• GMC Suburban 3500 HD

It is designed to maintain axle integrity by preventing oil leaks and contamination in these specific models, ensuring reliable driveline operation.

Common Issues Addressed by the National 710927 Wheel Seal

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

Installation Notes and Tips

When installing the National 710927 wheel seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without damaging the sealing lip. Verify the seal orientation matches the bi-directional lip design for optimal performance. Lubricate the seal lip lightly with clean oil before installation to reduce initial wear. Follow vehicle-specific service manual instructions for torque specifications and installation procedures.

Quality Assurance and Warranty Information

National wheel seals are manufactured to meet strict industry standards for durability and performance. The 710927 seal is part of the 710900 series, known for consistent quality in driveline sealing applications. While specific warranty terms may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in product reliability.