The HELLA 6PU 358 251-191 wheel speed sensor is a critical component for modern vehicle safety systems. It accurately measures the rotational speed of the wheel and transmits this data to the vehicle's control modules, such as the Anti-lock Braking System (ABS) and Electronic Stability Program (ESP). Proper functioning of the wheel speed sensor is essential for maintaining optimal performance of these safety features. A faulty sensor can lead to illuminated warning lights on the dashboard, such as the ABS or traction control warning light, and can compromise the effectiveness of these systems. HELLA is a trusted brand known for its high-quality automotive components. This sensor is engineered to meet stringent industry standards, ensuring a precise fit and reliable operation. Replacing a worn or damaged sensor with this HELLA part will help restore the full functionality of your vehicle's safety systems.