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Hyundai Sonata Discs Rotors and Hardware

The Hyundai Sonata is a mid-sized automotive sedan. One of the most important aspects on your Hyundai is the braking setup, and the rotors are a critical component of this part since they are responsible for slowing down the vehicle. Rotors come in a wide range of styles, makes, materials, and more, so be sure to consider your driving style and needs before purchasing a new set of rotors for your Hyundai Sonata.

How do rotors function when slowing down a Hyundai Sonata?

When you’re driving your Hyundai and apply the brake pedal, the piston in the master braking cylinder is compressed, which causes an increase in pressure. This pressure forces the braking fluid through the Sonata's brake lines and into the calipers. The calipers are forced to expand due to the increased pressure, which forces them to rub against the rotors that are attached to the Hyundai's wheels. This friction causes the Sonata to begin to slow down, and the rotors produce a large amount of heat in the process. Because of this, vehicle rotors are designed to be able to withstand high temperatures.

What styles of rotors can be used on a Sonata?
  • Solid steel: Solid steel rotors can be made of either high-quality or recycled steel.
  • Drilled or cross-drilled: These rotors include holes that are drilled through the steel at various points on the rotor. Drilled rotors are only drilled through one side of the rotor, whereas cross-drilled parts are drilled through from both sides, ensuring smooth edges in the drill holes. These holes help to decrease the amount of heat caused by braking. The holes also help to improve air flow which can help the discs last longer on your Hyundai.
  • Slotted: Slotted rotors include ridges that are carved into the side of the rotor. These are carved at an angle and are designed to help improve airflow and disperse dirt, salt, dust, and other particles away from the rotor to maintain high braking effectiveness.
  • Cross-drilled and slotted: Some rotors for Hyundai vehicles include holes as well as slots, which results in even higher heat dissipation and a longer product life because these rotors see the benefits of both styles.
Do Hyundai rotors need to be installed on specific sides?

Sonata rotors that do not include any directional markings, such as solid steel, drilled, or cross-drilled rotors, can be placed on any wheel on the Hyundai. The Hyundai Sonata discs rotors and hardware parts are easy to purchase since they do not require side specificity. On the other hand, rotors that include slots or grooves, such as slotted or combination rotors, are side specific because the grooves are angled or curved in a certain direction to improve airflow and disperse various substances from the road away from the rotor. If these rotors are not installed on the side of the Sonata that they were designed for, they will not work properly and can cause a decrease in braking performance.