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The steering knuckle is an important component of a vehicle's suspension and steering system. It is a part of the front axle that connects the wheel to the suspension and steering components. The steering knuckle is responsible for allowing the wheel to turn and providing a pivot point for the front wheel.

Here are some key things to know about steering knuckle parts:

Material: Steering knuckles are typically made from cast iron, forged steel, or aluminum alloy. The choice of material depends on the vehicle's weight, performance, and cost considerations.

Construction: A steering knuckle consists of several components, including the wheel hub, bearings, spindle, and steering arm. These components work together to provide stability, control, and steering to the vehicle.

Wear and tear: Steering knuckles are designed to withstand a lot of stress and wear over time. However, they can become damaged due to impact, corrosion, or worn-out components. Signs of a damaged steering knuckle include vibration, noise, uneven tire wear, and steering wheel misalignment.

Maintenance: Regular maintenance is crucial for keeping the steering knuckle and other suspension components in good working condition. This includes inspecting the knuckle for signs of damage or wear, replacing worn-out parts, and keeping the steering system properly lubricated.

Replacement: If the steering knuckle becomes damaged beyond repair, it will need to be replaced. It is important to choose a high-quality replacement part that meets the specifications of your vehicle's make and model. It is also recommended to have a professional mechanic install the new part to ensure proper installation and alignment.

In summary, the steering knuckle is a vital component of a vehicle's steering and suspension system. Understanding its construction, maintenance, and replacement can help ensure safe and reliable operation of your vehicle.