Wheel Speed Sensor BMW G30 G31 G11 G15 ABS Cable Front Left Right N/O/S 6874637

Wheel Speed Sensor BMW G30 G31 G11 G15 ABS Cable Front Left Right N/O/S is an original braking system component designed for precise monitoring of wheel rotation speed in BMW vehicles. As an ABS speed sensor, it works in conjunction with the control module, ensuring stable operation of the anti-lock braking system during braking. This used OEM component is a sensible choice for servicing the factory ABS system in premium class cars.

Specifications and technical data

• SKU: 6874637
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6874637
• Substitutable numbers: 6874637, 34526874637, 6859602, 34526859602
• Location on the vehicle: Front, Left, Right
• Category: ABS Speed Sensors

Purpose and function in the ABS system

The presented sensor is responsible for generating a wheel rotation speed signal, which is then analyzed by the ABS controller. Based on this data, the system can modulate pressure in the brake circuits, reducing wheel lock-up and improving vehicle stability during intense braking. Using an original BMW component allows for maintaining the factory operating parameters of the system.

The sensor's placement covers the front axle on either the left or right side, allowing it to be used when servicing both front wheels. As a result, the part is suitable both for replacing a single damaged sensor and for symmetrical replacement on both sides as part of preventive maintenance.

Compatibility and mounting parameters

The ABS speed sensor has been designed for integration with factory wiring and mounts in G-series BMW models, such as the G30, G31, G11, or G15. This ensures the correct geometry relative to the pulse ring and proper routing of the cable in existing brackets. Installation takes place in the location provided by the vehicle manufacturer, without the need for any modifications to the installation.

The element has an assigned OEM part number and associated interchangeable numbers, which facilitates verification of compatibility with a specific equipment version and vehicle year. Before purchasing, it is worth comparing the markings with vehicle data or using the BMW catalog to confirm full compatibility.

Characteristics of the used OEM component

The offered sensor is a used part, sourced from a dismantled BMW vehicle. Such OEM components are often chosen as an economical alternative to new parts, while maintaining the manufacturer's original specifications. Factory manufacturing translates into proper fitment to the hub, stable mounting, and correct cooperation with the vehicle's electronics.

In the case of ABS sensors, it is crucial to maintain the appropriate working distance from the pulse ring and resistance to operating conditions in the vicinity of the steering knuckle (moisture, contaminants, temperature changes). The original BMW element was designed specifically with such operational loads in mind.

Benefits of using an original BMW ABS sensor

• maintaining the factory operating characteristics of the ABS system and related systems,
• secure fitment to mounts and the electrical harness on the front axle,
• consistency with the brake controller software in a given BMW model,
• reduction of the risk of diagnostic errors and ABS/DSC warning lights illuminating after replacement.

For workshops and individual users, this means simpler installation and a lower risk of problems after starting the vehicle. Using OEM components is particularly important in the area of active safety, where signal accuracy and resistance to interference have a direct impact on the operation of the braking system.

Related braking system components and technical knowledge

If you are planning a comprehensive repair or upgrade of the braking zone in your BMW and need other components from the same group, such as additional sensors, signal cables, or wheel harnesses, check the available parts in the BMW ABS speed sensor category.

When selecting used braking system components – including ABS sensors – it is worth following a proven verification procedure. Detailed tips on the safe selection of discs, calipers, and ABS system elements can be found in the article: Second-hand braking system: how to safely choose discs, calipers, and ABS?