A big part of car ownership is making sure you keep up with regular maintenance. This means replacing car parts that wear out over time. But how do you know which car parts need to be replaced regularly? Here are two of the most important ones.

Spark Plugs

Spark plugs are often overlooked by many car owners, but they're actually a crucial part of engine maintenance. They kickstart the engine combustion process, which, in turn, powers your car. Generally, every engine needs one spark plug per cylinder. The cylinder is the part of the engine where the combustion process takes place.

Spark plugs have a metal threaded shell that screws into the engine's cylinder head. The electrode at the end of the spark plug protrudes into the combustion chamber. As the engine fires, the spark plugs create a spark that ignites the air and fuel mixture.

Over time, spark plugs can become fouled with deposits from the combustion process. These deposits can cause the spark plug to misfire, which can lead to issues such as engine knocking or reduced fuel economy.

When buying spark plugs, make sure to get quality ones to ensure optimal engine performance.

Brake Pads

The brake pads are one of your car's most important safety features. They are responsible for stopping your car when you press down on the brake pedal. They're connected to the rest of the braking system by metal calipers, which press the pads against the brake rotors to create friction that stops the car.

The pads themselves are made of durable and long-lasting materials to allow for a smooth, consistent stop every time you press the brake pedal. But they will eventually wear out and need to be replaced. The surface in contact with the rotors will become smooth, causing the car to take longer to stop. You may also hear squealing noises when you press the brakes if the pads are getting close to needing replacement.

In addition, worn-out brake pads can cause damage to the rotors. The increased friction can cause the rotors to warp or crack under intense contact. This creates an uneven surface that can cause vibrations when the car is in motion. Be sure to have your brake pads inspected and replaced as needed to avoid any potential safety issues.

You can buy brake pads online or at most auto parts stores. Just remember to specify your car's make, model, and year of manufacture so you get the right ones. Also, don't wait until the pads are completely worn out to replace them. Talk to your auto technician about how often you need to replace your car's brake pads.

Contact a local car service to buy car parts.