This listing is for a single Genuine NGK NTK ABS Wheel Speed Sensor, part number AB0677, designed for direct replacement in the antilock brake system. Measuring 41.25 inches in length, the sensor is specifically for placement in the Brake section under Sensors. Compatible with various interchange part numbers such as DENSO Standard BWD 77-26, Walker Products 241-1030, and Bosch CARQUEST S240, this ABS Speed Sensor by NGK ensures proper functioning of the antilock brake system.