Hella 012806891 ABS Wheel Speed Sensor - Rear, Rear Left or Rear Right

HELLA ABS Wheel Speed Sensor for Rear Axle

Restore accurate wheel speed monitoring with this HELLA ABS wheel speed sensor, part number 012806891. Built for rear axle left and right applications, it supports consistent ABS operation on select Audi models by sending precise wheel movement data to the braking system.

Key Features

• ABS wheel speed sensor for rear axle left and right fitment
• Inductive sensor design with 2 poles
• 1370 mm cable length for the specified vehicle applications
• Durable construction for demanding road conditions
• Direct-fit replacement for select Audi A4, A4 Quattro, S4, and RS4 applications

Product Details

HELLA 012806891 is an ABS wheel speed sensor engineered for rear axle use on select 2005-2009 Audi A4 and Audi A4 Quattro models, plus 2006-2009 Audi S4 and 2007-2008 Audi RS4 applications. It monitors wheel rotation so the ABS control system can respond with accurate braking input, helping maintain stability and control during hard stops or low-traction driving. This part cross-references Standard Ignition ALS427 for the same application.

As part of the HELLA line, this sensor reflects the brand’s focus on precise electrical and braking components for OE-style service replacement. The inductive sensor design and vehicle-specific cable length support a clean replacement on the rear axle left or right side where listed.

What It Helps Solve

• ABS warning light caused by a failed rear wheel speed sensor
• Erratic or missing wheel speed signal to the ABS module
• Loss of ABS function during braking events
• Brake stability issues related to inaccurate rear wheel data
• Sensor replacement needs on Audi A4, A4 Quattro, S4, and RS4 rear axle applications

Installation Notes

Verify the exact position before installation. This sensor is listed for rear axle left and right applications, with fitment notes that vary by model and chassis details. Confirm connector style, cable routing, and VIN-specific notes before ordering or installing. For best results, compare the original sensor length and mounting path to the replacement part number 012806891.

Quality Assurance

HELLA is a recognized name in automotive electrical and braking components, and this ABS wheel speed sensor is built with durable materials for reliable service in harsh road conditions. Use the vehicle fitment notes to confirm the correct application for your Audi A4, Audi A4 Quattro, Audi S4, or Audi RS4.