Timken HA590603 Wheel Bearing and Hub Assembly - Rear

Timken HA590603 Wheel Bearing and Hub Assembly Overview

The Timken HA590603 wheel bearing and hub assembly is engineered for reliable driveline performance on Subaru Legacy and Outback models. Designed to meet precise specifications, this assembly ensures proper fitment and durability for your vehicle's driven axle system.

• 27 spline quantity for secure axle engagement
• 5 wheel studs for stable wheel mounting
• 4 flange bolt holes for secure attachment
• Wheel pilot diameter of 2.204 inches (55.98 mm) for accurate wheel alignment
• Brake pilot diameter of 2.280 inches (57.91 mm) to support brake component fitment
• Hub pilot diameter of 3.306 inches (83.97 mm) for precise hub centering
• Flange diameter of 5.427 inches (137.85 mm) with a bolt circle diameter of 4.514 inches (114.66 mm)
• Flange offset of 2.619 inches (66.52 mm) optimized for driven axle applications

Detailed Product Description

The Timken HA590603 wheel bearing and hub assembly is specifically designed for the driven axle of Subaru Legacy and Outback vehicles. Featuring a 27-spline axle interface, this assembly provides a secure connection between the axle shaft and hub. The 5-wheel stud configuration and 4 flange bolt holes ensure a stable and reliable wheel mounting surface. Precise pilot diameters for the wheel, brake, and hub components allow for accurate alignment and fitment, reducing vibration and wear. The flange diameter and bolt circle diameter are engineered to match OEM specifications, maintaining proper wheel positioning and brake rotor alignment. The flange offset is optimized to maintain correct wheel offset and suspension geometry.

Compatible Vehicles and Applications

• Subaru Legacy models requiring a driven wheel bearing and hub assembly
• Subaru Outback models with matching spline and flange specifications
• Replacement for worn or damaged wheel bearing and hub assemblies causing noise or play
• Suitable for driveline repairs involving axle spline or hub flange issues

Installation Notes and Tips

• Ensure compatibility with your specific Subaru Legacy or Outback model year before installation
• Use proper torque specifications for flange bolts and wheel studs to avoid premature wear
• Inspect axle splines and surrounding components for damage prior to assembly
• Clean mounting surfaces thoroughly to ensure proper seating and alignment
• Professional installation is recommended to maintain driveline integrity and safety

Quality Assurance and Warranty

Timken manufactures the HA590603 wheel bearing and hub assembly to meet strict quality standards, ensuring durability and performance under normal operating conditions. This part is backed by Timken's limited warranty against defects in materials and workmanship. Refer to Timken's warranty documentation for specific terms and coverage details.