NTK AB1297 ABS Wheel Speed Sensor - Rear

NTK ABS Wheel Speed Sensor AB1297

The NTK AB1297 is an ABS wheel speed sensor built for rear applications on select Mercedes-Benz models. It uses a black oblong connector, a 2-terminal pin design, and an 11.42-inch wiring harness for a direct electrical connection.

NTK expands its sensor lineup with OE-focused coverage backed by more than 80 years of automotive experience. The brand subjects its technical sensors to thermal shock, vibration, and OBD verification, and manufactures them to meet or exceed OE specifications.

Key Features

• Rear ABS wheel speed sensor for select Mercedes-Benz applications
• Black oblong connector with female housing and male terminals
• 11.42-inch wiring harness for routing and connection
• 2-terminal pin configuration
• NTK sensor technology backed by OE application experience

Detailed Description

Use the NTK AB1297 when replacing a rear ABS wheel speed sensor on compatible Mercedes-Benz GL350, GL450, GL550, ML350, and R350 applications. This sensor is engineered for vehicles that rely on accurate wheel speed input for ABS system operation, and its connector and terminal layout are specified for the listed applications. The AB1297 is part of NTK’s technical sensor line, which extends the brand’s OE-oriented coverage beyond ignition and oxygen sensor products. This part cross-references Mercedes-Benz OE numbers 164 440 52 41 and 164 440 56 41 for the same application.

What It Helps Address

• ABS warning light caused by a failed wheel speed sensor
• Erratic or missing wheel speed signal at the rear axle
• ABS system faults related to sensor electrical connection issues
• Intermittent braking control warnings tied to sensor output

Installation Notes and Tips

Verify the rear fitment notes before ordering, especially the chassis break for 2011 GL450 and GL550 models and the production date note for the 2011 ML350. Confirm connector shape, terminal count, and harness length against the original sensor before installation. No mounting hardware is included.

Quality Assurance

NTK tests its technical sensors under thermal shock, vibration, and OBD verification conditions, and manufactures them to meet or exceed OE specifications.