Timken HA591080 Wheel Bearing and Hub Assembly - Rear

Overview of Timken HA591080 Wheel Bearing and Hub Assembly

The Timken HA591080 wheel bearing and hub assembly is engineered for reliable performance on Toyota Sienna vehicles. Designed to meet precise specifications, this driven hub assembly ensures proper fit and function for your vehicle's driveline system.

• Compatible with Toyota Sienna models
• 26 spline quantity for secure drivetrain connection
• 5 wheel studs for stable wheel mounting
• 4 flange bolt holes for secure attachment
• Flange diameter of 152 mm (5.984 inches) for proper fit
• Wheel pilot diameter of 60 mm (2.362 inches) for accurate wheel alignment
• Brake pilot diameter of 62 mm (2.441 inches) to support brake component positioning
• Hub pilot diameter of 84 mm (3.307 inches) ensuring correct hub centering
• Flange offset of 69 mm (2.717 inches) to maintain proper wheel positioning
• Bolt circle diameter of 114.3 mm (4.5 inches) matching OEM specifications

Detailed Product Description

The Timken HA591080 wheel bearing and hub assembly is a critical component in the driveline and axles category, specifically designed for the Toyota Sienna. This assembly features a 26-spline driven design that ensures a secure connection to the drivetrain, supporting smooth power transfer. The 5-wheel stud configuration and 4 flange bolt holes provide a robust mounting platform for the wheel, while the flange diameter and offset maintain proper wheel alignment and positioning. The precise wheel pilot, brake pilot, and hub pilot diameters ensure compatibility with OEM wheels and brake components, reducing the risk of vibration or misalignment. The bolt circle diameter of 114.3 mm matches factory specifications, facilitating straightforward installation and reliable performance.

Common Applications and Problem Resolution

• Replacement for worn or damaged wheel bearing and hub assemblies on Toyota Sienna
• Eliminates wheel vibration caused by bearing wear or hub misalignment
• Resolves noise issues such as humming or grinding from the wheel area
• Addresses wheel play or looseness due to failed hub components
• Restores proper wheel and brake component alignment for safe operation

Installation Notes and Tips

When installing the Timken HA591080, ensure the vehicle is securely lifted and supported. Verify that the spline count and pilot diameters match the OEM specifications for your Toyota Sienna. Use proper torque settings on the flange bolts and wheel studs to avoid premature wear or failure. It is recommended to inspect related components such as the axle shaft and brake system during installation to ensure overall driveline integrity.

Quality Assurance and Warranty

Timken manufactures the HA591080 wheel bearing and hub assembly to meet strict quality standards, ensuring durability and reliable performance. This part is engineered to OEM specifications for the Toyota Sienna, providing confidence in fit and function. Please refer to Timken's official warranty policy for coverage details.