Wheel bearing and hub assembly with ABS sensor
Choosing a replacement wheel bearing and hub assembly with ABS sensor means evaluating more than the part number. The bearing must support hub rotation, while the integral sensor reads the reluctor ring so the anti-lock brake system can detect wheel speed. Noise, looseness, or a warning light can point to this area, but only a proper inspection shows whether the bearing seat, assembly, or sensor tone wheel is the source. Matching the correct fitment and confirming sensor compatibility before purchase helps avoid repeated labor and electrical faults.
The direct answer
The most useful direct answer is that this style of unit replaces the wheel bearing, hub flange, and wheel speed sensor as one preassembled component. That design reduces separate wear parts around the bearing seat and removes much of the measuring or pressing work associated with installing a standalone bearing. For many passenger vehicles, replacing the complete hub assembly is the practical repair when noise changes with steering load or when play is confirmed at the wheel.
The condition that materially changes this choice is whether the original setup uses a separate sensor or a sensor integrated into the bearing and hub assembly. If the fault code shows a wheel speed signal problem, the bearing may still have mechanical wear, or the reluctor ring inside the hub may be damaged. The sensor magnet, tone ring, and wiring connector should all be inspected with the wheel raised, because replacing the assembly only makes sense when the bearing or its integrated reluctor ring is the likely cause.