Timken 513188 Wheel Bearing and Hub Assembly - Front

Timken 513188 Wheel Bearing and Hub Assembly Overview

The Timken 513188 wheel bearing and hub assembly is engineered for reliable driveline performance in select Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab vehicles. Designed to meet precise specifications, this assembly supports smooth wheel rotation and vehicle stability for models like the Trailblazer, Envoy, and Ascender.

• 27 spline quantity for secure drivetrain engagement
• 6 wheel studs ensuring proper wheel mounting
• 3 flange bolt holes for stable attachment
• Flange diameter of 150.75 mm (5.935 inches) for compatibility
• Wheel pilot diameter of 77.78 mm (3.062 inches) for accurate wheel centering
• Brake pilot diameter of 78.98 mm (3.110 inches) to support brake component alignment
• Driven type hub designed for direct power transfer
• Flange offset of 47.00 mm (1.850 inches) to maintain correct wheel positioning
• Bolt circle diameter of 127.00 mm (5.000 inches) matching OEM specifications

Technical Details and Specifications

The Timken 513188 assembly features a 27-spline driven hub that ensures a secure connection to the axle shaft, providing consistent torque transfer. The 6 wheel studs and 3 flange bolt holes offer a robust mounting platform for wheels and brake components. With a flange diameter of 150.75 mm and a bolt circle diameter of 127.00 mm, this hub assembly aligns precisely with factory dimensions. The wheel pilot diameter of 77.78 mm and brake pilot diameter of 78.98 mm facilitate proper centering of wheels and brake rotors, reducing vibration and enhancing safety. The flange offset of 47.00 mm maintains correct wheel positioning relative to the suspension and steering components.

Compatible Vehicles and Applications

This Timken wheel bearing and hub assembly is compatible with a range of vehicles including Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models. Specifically, it fits the Chevrolet Trailblazer, Trailblazer EXT, Envoy, Envoy XL, Envoy XUV, Buick Rainier, GMC Envoy, Isuzu Ascender, Oldsmobile Bravada, Saab 9-7x, and Chevrolet SSR. The part number 513188 ensures exact fitment for these models, supporting driveline integrity and wheel performance.

Common Issues Addressed by Timken 513188

• Eliminates wheel bearing noise caused by wear or damage
• Resolves wheel wobble and vibration issues
• Prevents uneven tire wear due to hub misalignment
• Restores proper brake rotor alignment for consistent braking
• Corrects drivetrain engagement problems related to spline wear

Installation Notes and Tips

When installing the Timken 513188 wheel bearing and hub assembly, ensure the vehicle is securely lifted and supported. Clean the mounting surface thoroughly to remove rust and debris. Verify the spline count and bolt pattern match the vehicle specifications before installation. Torque all flange bolts and wheel studs to manufacturer-recommended values. It is advisable to inspect related components such as axle shafts and brake rotors during installation for wear or damage.

Quality Assurance and Warranty

Timken manufactures the 513188 wheel bearing and hub assembly to meet stringent quality standards, ensuring durability and performance. This part undergoes rigorous testing to comply with OEM specifications. While specific warranty details may vary, Timken typically offers coverage against defects in materials and workmanship. Refer to Timken’s official warranty policy for complete information.