Hella 230040381 ABS Wheel Speed Sensor

The Hella 230040381 is an ABS wheel speed sensor (also known as a wheel speed sensor or ABS sensor) engineered to OEM-equivalent standards for reliable performance in the vehicle's braking and safety systems.

How It Works:

The sensor monitors the rotational speed of each wheel and transmits that data to the vehicle's ABS control unit and related safety systems. As the pulse wheel spins, changes in the magnetic flux generated by the sensor's permanent magnet and copper winding produce an alternating current signal that is read by the control module. This wheel speed data is critical for preventing wheel lockup during hard braking, and also feeds information to systems such as traction control (TCS), electronic stability control (ESC/ESP), and hill start assist.

Key Features:

• Passive inductive sensor — operates without an external power supply
• Constructed with a permanent magnet, copper winding, protective housing, and dedicated wiring connector
• Meets or exceeds OEM specifications for fit, form, and function
• Direct 1-to-1 replacement for straightforward installation
• Engineered by Hella, a globally recognized OEM supplier to major vehicle manufacturers
• Compatible with ABS, TCS, ESP, and other wheel-speed-dependent control systems

Hella's extensive original equipment manufacturing experience ensures this sensor delivers the same accuracy and durability found in factory-installed components, giving independent repair shops and DIY installers confidence in every installation.