What is the purpose of a sway bar in a vehicle's suspension?

The sway bar, also known as an anti-roll bar or stabilizer bar, serves the essential function of reducing body roll during cornering. When a vehicle turns, centrifugal force causes the body to lean to the outside of the turn. The sway bar connects the left and right sides of the suspension system, allowing it to resist this roll and provide a more stable driving experience. By counteracting body roll, the sway bar helps maintain better contact between the tires and the road, which improves traction and vehicle handling.

This stability is particularly important in high-speed cornering or when navigating uneven surfaces, as it allows the driver to maintain control and confidence in the vehicle's performance. While sway bars do not specifically connect the wheel to the suspension, raise vehicle height, or directly enhance braking capabilities, their role in improving cornering stability is critical for safe and effective vehicle operation.