National 710103 Wheel Seal - Front

Overview of National 710103 Wheel Seal

The National 710103 wheel seal is engineered for reliable sealing performance in Chevrolet and GMC trucks. Designed specifically for models like the K1500, K1500 Suburban, K2500, K2500 Suburban, and K3500, this oil seal helps maintain driveline integrity by preventing lubricant leaks and contamination.

• Inside diameter: 3.142 inches (79.81 mm)
• Outside diameter: 3.736 inches (94.89 mm)
• Flanged outside diameter: 4.063 inches (103.2 mm)
• Housing bore diameter: 3.733 inches (94.82 mm)
• Width: 0.565 inches (14.35 mm)
• Material: durable nitrile rubber for resistance to oil and wear
• Part type: oil seal, series 710100, type 278

Detailed Product Description

The National 710103 wheel seal is constructed from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based oils and high temperatures. This seal features precise dimensions including a 3.142-inch inside diameter and a 3.736-inch outside diameter, ensuring a secure fit on shafts and housings. The flanged outside diameter of 4.063 inches provides additional sealing surface to prevent leakage. With a width of 0.565 inches, this seal fits tightly within the housing bore of 3.733 inches, maintaining effective sealing under various operating conditions.

Compatible with Chevrolet and GMC heavy-duty trucks such as the K1500, K1500 Suburban, K2500, K2500 Suburban, and K3500, the 710103 wheel seal is designed to meet the demands of driveline and axle applications. It is part of National's 710100 series, known for consistent quality and durability in sealing systems.

Common Applications and Problem Solving

• Prevents oil leaks from wheel hubs and axle assemblies
• Protects driveline components from dirt and moisture contamination
• Reduces wear on bearings by maintaining proper lubrication
• Helps avoid costly repairs due to seal failure or axle damage
• Maintains vehicle performance and safety in Chevrolet and GMC trucks

Installation Notes and Tips

• Ensure the shaft and housing bore 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 oil seal design to prevent leaks
• Check shaft surface for wear or damage that could compromise seal integrity
• Follow vehicle manufacturer torque specifications when reassembling components

Quality Assurance and Warranty

National wheel seals, including part number 710103, are manufactured to meet industry standards for durability and performance. The nitrile material and precise engineering ensure long service life under typical operating conditions. While specific warranty details may vary, National products generally come with a limited warranty against defects in materials and workmanship, providing confidence in the product's reliability for Chevrolet and GMC K-series trucks.