TOYOTA 43310-09017 Front Upper Ball Joint Set

The genuine TOYOTA 43310-09017 (alternative OEM number: 4331009015) front upper ball joint set (JOINT SET FR UPR BA) is a crucial safety and structural component of the vehicle's front suspension system. This component provides a flexible yet stable connection between the upper control arm and the steering knuckle, allowing vertical wheel travel during suspension movement as well as precise steering control.

Key Features and Benefits:

• Stability and Control: Maintains proper suspension geometry, minimizes play, and ensures stable road handling both during cornering and straight-line driving.
• Premium Material Quality: Manufactured from a high-strength forged steel housing engineered to withstand heavy dynamic loads and severe mechanical stress.
• Superior Sealing: A durable dust boot effectively shields the ball joint from dust, mud, water, and other environmental contaminants, preventing premature wear and loss of lubricant.

Technical Specifications:

• Fitting Position: Front axle, upper (applicable to both left and right sides)
• Genuine OEM Quality: Meets Toyota's stringent factory standards, guaranteeing a perfect fit and long service life.
• Alternative / OEM Part Number: 4331009015

Typical Symptoms of Wear or Failure:

Wear on the ball joint directly impacts driving safety. Inspecting or replacing the component is promptly recommended upon noticing any of the following symptoms:

• Knocking or metallic noises coming from the front suspension, particularly when driving over uneven road surfaces or cornering.
• Vague, imprecise steering feel or noticeable free play in the steering wheel.
• Uneven or abnormal tire wear caused by altered suspension alignment geometry.
• Cracked or torn rubber dust boot, leading to grease leakage and accelerated internal corrosion.