Hella 230040591 ABS Wheel Speed Sensor - Rear Right

HELLA ABS Wheel Speed Sensor 230040591

Restore accurate wheel speed monitoring with the HELLA ABS Wheel Speed Sensor 230040591. This rear axle Hall sensor is built as a standard replacement for select Ford Escape and Mercury Mariner applications, with a rear right fitment and an included wire harness for a cleaner service replacement.

Key Features

• ABS wheel speed sensor for rear axle wheel-side mounting
• Hall sensor design for precise wheel speed detection
• Standard replacement grade for service repair use
• Includes wiring harness and holder
• 2-pin female connector with black square connector housing
• Rear axle, rear right position on listed vehicles
• Part number 230040591 for ordering and cross-reference lookup

Detailed Description

HELLA 230040591 is an ABS wheel speed sensor engineered for the rear axle wheel side, where it monitors wheel movement and sends the signal needed for ABS operation. The sensor uses a 2-pin Hall sensor configuration with a female connector, blade terminals, and an integrated harness measuring 32.68 in. / 830 mm. It is specified as a standard replacement part with a square black connector and a rear axle mounting location.

Compatible vehicle coverage includes 2004-2008 Ford Escape, rear right, and 2005-2008 Mercury Mariner, rear right. This part cross-references Standard Ignition ALS514 for the same application. The HELLA 230040591 is a direct service option for technicians and owners replacing a failed rear wheel speed sensor on these vehicles.

What It Is Used For

• ABS warning light caused by a failed rear wheel speed sensor
• Erratic or missing wheel speed signal at the rear right wheel
• Loss of ABS function during braking events
• Brake system fault codes related to rear axle wheel speed input
• Harness damage or connector wear at the rear wheel sensor location

Installation Notes and Tips

Fits 2004-2008 Ford Escape, rear right. Fits 2005-2008 Mercury Mariner, rear right. Verify connector shape, pin count, and harness routing before installation. The sensor is listed with wiring harness included and a holder, and mounting hardware is not included. Assy/disassy by qualified personnel is required. Confirm rear axle wheel-side placement and route the harness away from moving suspension components.

Quality Assurance

HELLA is a recognized automotive parts brand with a focus on precision-engineered replacement components. Part number 230040591 is built for the specified rear axle ABS application and is intended to restore accurate wheel speed signal input for the listed Ford Escape and Mercury Mariner vehicles.