Standard Ignition ALS523 ABS Wheel Speed Sensor - Front or Rear

ABS Wheel Speed Sensor for Jaguar

Standard Ignition ALS523 is an ABS wheel speed sensor for front and rear wheel locations on select Jaguar models. It uses a 2-terminal, male blade connection with a single oval connector and bolt-mount installation for a direct-fit replacement approach.

Compatible With 1997-2003 Jaguar XK8, 2000-2002 Jaguar XKR, and 1998-2003 Jaguar XJ8, XJR, and Vanden Plas applications. Standard Ignition ALS523 is built for vehicles that need a wheel-mounted ABS sensor with the correct connector style and mounting layout.

Key Features

• ABS wheel speed sensor for wheel-mounted applications
• Fits front and rear positions on listed Jaguar models
• 2-terminal male blade design
• 1 male connector with oval shape
• Bolt-mount installation with 1 bolt hole
• Standard Ignition ALS523 part number for catalog matching and service lookup

Detailed Description

This ABS wheel speed sensor monitors wheel rotation data used by the anti-lock brake system to help the vehicle control braking response. The sensor features a male connector, male terminals, and an oval connector shape, with a wheel mounting location and bolt-mount retention. For Jaguar XJ8, XJR, Vanden Plas, XK8, and XKR service work, ALS523 provides the connector and mounting configuration needed for the listed applications. The part number ALS523 is also useful when cross-checking service records or ordering by reference.

This part cross-references Dayco 71134 for the same application.

What It Helps Address

• ABS warning light caused by a failed wheel speed sensor
• Loss of wheel speed signal at the front or rear wheel
• Brake system fault codes related to sensor input
• Erratic ABS operation from damaged sensor wiring or connector wear
• Intermittent braking control feedback on listed Jaguar models

Installation Notes and Tips

Verify the connector shape, terminal style, and mounting location before installation. Match the sensor to the correct wheel position on the vehicle and inspect the mounting point for corrosion, debris, or damage that could affect signal quality. Confirm fitment by year, model, and position before ordering, especially on Jaguar XJ8, XJR, Vanden Plas, XK8, and XKR applications. Use the vehicle service information for proper diagnostic and installation procedures.

Quality Assurance

Standard Ignition supplies automotive electrical and sensor components for service replacement applications. ALS523 is cataloged to match the specified connector, terminal, and mounting requirements for the listed Jaguar fitments, including front and rear wheel positions. Part number ALS523 is supported by interchange references for application verification.