Timken SP620300 Wheel Bearing and Hub Assembly - Front

Timken SP620300 Wheel Bearing and Hub Assembly Overview

The Timken SP620300 wheel bearing and hub assembly is engineered for reliable performance on heavy-duty trucks. Designed specifically for Chevrolet and GMC Sierra 3500 HD and Silverado 3500 HD models, this non-driven hub assembly ensures precise fitment and durability.

• Compatible with Chevrolet Sierra 3500 HD and GMC Silverado 3500 HD
• Non-driven wheel bearing and hub assembly
• 8 wheel studs for secure wheel mounting
• 4 flange bolt holes with 180 mm bolt circle diameter
• Wheel pilot diameter of 123.99 mm (4.881 inches)
• Brake pilot diameter of 126.95 mm (4.998 inches)
• Hub pilot diameter of 114.04 mm (4.490 inches)
• Flange diameter measuring 221.30 mm (8.713 inches)
• Flange offset of 74.35 mm (2.927 inches)

Detailed Product Description

The Timken SP620300 is a wheel bearing and hub assembly designed for non-driven axles on heavy-duty Chevrolet and GMC trucks, including the Sierra 3500 HD and Silverado 3500 HD. This assembly features 8 wheel studs and 4 flange bolt holes arranged on a 180 mm bolt circle diameter, providing a secure and stable connection to the vehicle’s wheel and brake components. The wheel pilot diameter of approximately 124 mm and brake pilot diameter near 127 mm ensure proper alignment and fitment with the corresponding wheel and brake parts. The hub pilot diameter of 114.04 mm supports accurate hub centering, while the flange diameter and offset are optimized for these specific truck models to maintain proper wheel positioning and handling characteristics.

Common Applications and Problem Resolution

• Replacement for worn or damaged wheel bearing and hub assemblies on Chevrolet Sierra 3500 HD and GMC Silverado 3500 HD
• Eliminates wheel vibration caused by bearing wear or hub damage
• Resolves noise issues related to failing wheel bearings
• Restores proper wheel alignment and stability
• Prevents premature tire wear due to hub or bearing defects

Installation Notes and Tips

• Ensure compatibility with Chevrolet Sierra 3500 HD and GMC Silverado 3500 HD before installation
• Use proper torque specifications for the 4 flange bolts and 8 wheel studs to avoid damage
• Inspect surrounding components such as brake rotors and suspension parts during installation
• Verify flange offset and pilot diameters match OEM specifications for optimal fit
• Professional installation is recommended to maintain vehicle safety and performance

Quality Assurance and Warranty

Timken manufactures the SP620300 wheel bearing and hub assembly to meet strict quality standards for durability and performance. While specific warranty details may vary, Timken products typically come with a limited warranty covering defects in materials and workmanship. This ensures that the SP620300 assembly provides reliable service when installed on compatible Chevrolet and GMC heavy-duty trucks.