KNOLET Front Wheel Hub Bearing Assembly Pair for Subaru Outback/Legacy 2005-2014 — 5-Lug, OEM-Style Fit & Heavy-Duty Seals

KNOLET Pair 513220 front wheel bearing hub assembly replaces worn hubs on compatible Subaru Outback and Legacy models to restore smooth rotation, reduce noise, and maintain wheel alignment.

These KNOLET front wheel hubs are engineered as a direct-fit replacement for specific Subaru Outback and Legacy years and engine configurations. Built to match OEM dimensions and reference numbers 28373AG00A/B and 28373AG01A/B, the assemblies are constructed from high-hardness forged carbon steel with protective coatings and premium seals. They target common symptoms of aged hubs—rattle, vibration, and grease leakage—without requiring vehicle modifications.

Which Subaru models and years will these hubs fit?

The Pair 513220 is designed for front left and right axles on a range of Subaru Outback and Legacy models. Confirm fitment by selecting Year, Make, Model on the product page or checking the vehicle fitment list.

• Outback: 2.5L (2005–2014), 2.5T (2005–2009), 3.0L (2005–2009), 3.6L (2010–2014)
• Legacy: 2.5L (2005–2014), 2.5T (2005–2009), 3.0L (2008–2009), 3.6L (2010–2014)
• Cross-check part references: 28373AG00A, 28373AG00B, 28373AG01A, 28373AG01B

How does this hub assembly address noise, vibration, and grease leaks?

KNOLET hubs use hardened forged carbon steel and robust sealing to limit ingress of moisture and contaminants that cause bearing wear. The result is lower friction, reduced operating noise, and improved rotational stability compared with worn original parts.

• Precision-machined bearing surfaces minimize wobble and vibration
• Heavy-duty seals help prevent grease escape and water entry
• Protective coating resists corrosion in wet conditions

What are the key specifications and installation details?

These assemblies come preassembled for front left and right positions and are built to OEM-style dimensions for a direct fit. ABS sensor coverage is not included, so verify existing sensor connections and hardware before installation.

• Position: Front left and right axle (pair)
• Flange diameter: 4.88 inches; bolt circle diameter: 3.94 inches
• Wheel stud quantity: 5; flange bolt hole quantity: 4
• Hub pilot diameter: 2.99 inches; brake pilot diameter: 2.28 inches; ABS sensor not included

Will replacing these hubs save time and reduce repair effort?

The KNOLET assemblies are supplied as ready-to-install units sized to OEM tolerances, which reduces bench time and simplifies wheel-end service. Professional-grade construction and compatibility help minimize additional machining or fitting steps.

• OE-style fitment reduces need for adjustments during installation
• Anti-shock and low-friction design lowers labor by easing wheel installation and alignment
• Durable finish and seals help delay future service intervals

Who is this for: These hub assemblies are aimed at DIY mechanics, independent repair shops, and Subaru owners who need a reliable, direct-fit replacement for worn front wheel bearings on the specified Outback and Legacy model years. If your vehicle shows wheel noise, steering vibration, or grease leakage and matches the listed fitment, this KNOLET pair offers an affordable OEM-style option to restore wheel performance.