Timken SP550103 Wheel Bearing and Hub Assembly - Front

Timken SP550103 Wheel Bearing and Hub Assembly Overview

The Timken SP550103 wheel bearing and hub assembly is engineered for reliable performance in Dodge Ram 2500 and Ram 3500 trucks. Designed as a non-driven hub, this assembly ensures precise fitment and durability for heavy-duty applications.

• Flange bolt hole quantity: 3 for secure mounting
• Wheel pilot diameter: 121.08 mm (4.767 inches)
• Brake pilot diameter: 122.28 mm (4.814 inches)
• Wheel stud quantity: 8 for enhanced wheel attachment
• Hub pilot diameter: 99.34 mm (3.911 inches)
• Flange offset: 50.18 mm (1.976 inches)
• Flange diameter: 205.5 mm (8.091 inches)
• Bolt circle diameter: 165.1 mm (6.5 inches)
• Drive type: Non-driven hub assembly

Detailed Product Description

The Timken SP550103 is a wheel bearing and hub assembly specifically designed for Dodge Ram 2500 and Ram 3500 models. This non-driven hub assembly features a flange with three bolt holes and eight wheel studs, providing a secure and stable connection to the vehicle’s axle. The precise wheel pilot diameter of 121.08 mm and brake pilot diameter of 122.28 mm ensure proper alignment with the wheel and brake components, reducing vibration and wear. The hub pilot diameter of 99.34 mm supports accurate hub positioning, while the flange offset of 50.18 mm maintains correct wheel placement relative to the suspension. The flange diameter of 205.5 mm and bolt circle diameter of 165.1 mm are engineered to match factory specifications for these Dodge Ram models, ensuring compatibility and ease of installation.

Common Applications and Problem Resolution

• Replacement for worn or damaged wheel bearing and hub assemblies on Dodge Ram 2500 and Ram 3500
• Eliminates wheel vibration caused by bearing wear or hub misalignment
• Addresses noise issues such as humming or grinding from faulty bearings
• Restores proper wheel alignment and brake component fitment
• Prevents premature tire wear due to hub or bearing failure

Installation Notes and Tips

• Ensure vehicle is securely lifted and supported before installation
• Verify the flange bolt hole quantity and wheel stud count match the vehicle’s specifications
• Clean mounting surfaces to remove rust and debris for proper fitment
• Torque flange bolts and wheel studs to manufacturer specifications
• Check for smooth rotation and absence of play after installation

Quality Assurance and Warranty

Timken manufactures the SP550103 wheel bearing and hub assembly to meet or exceed OEM standards for durability and performance. Each unit undergoes rigorous quality control to ensure precise dimensions and reliable operation. While specific warranty details may vary, Timken typically offers coverage against defects in materials and workmanship, providing confidence in the product’s longevity and function.