Walker 242-1052 Ignition Knock (Detonation) Sensor

Overview of Walker Products Ignition Knock Sensor 242-1052

The Walker Products Ignition Knock (Detonation) Sensor, part number 242-1052, is designed to monitor engine knocking in select Ford, Mazda, and Mercury vehicles. This sensor helps maintain optimal engine performance by detecting detonation and sending signals to the engine control unit.

• Length: 40.75 mm
• Wiring harness length: 482.6 mm
• Blade terminal type with 2 female terminals
• Single rectangular male connector
• Wiring harness included for direct replacement
• Mounting hardware not included

Walker Products Brand Line Details

Walker Products specializes in emission control components, including sensors that meet OEM specifications. The 242-1052 ignition knock sensor is part of their sensor lineup, engineered to provide reliable detection of engine detonation and support emission control systems in vehicles such as the Ford Explorer and Mazda B4000.

Product Description and Attributes

This ignition knock sensor features a compact length of 40.75 mm and comes with a 482.6 mm wiring harness, allowing for flexible installation in the engine bay. The sensor uses a blade terminal type with two female terminals, connecting to a single rectangular male connector. The included wiring harness ensures compatibility and ease of replacement without the need for additional wiring modifications. Note that mounting hardware is not included, so existing hardware should be reused or sourced separately.

Compatible Vehicles and Applications

• Ford Explorer, Explorer Sport, Explorer Sport Trac
• Ford Mustang
• Ford Ranger
• Ford E-150 Econoline and E-150 Econoline Club Wagon
• Ford E-250 Econoline
• Mazda B4000
• Mercury Mountaineer

Common Issues Addressed by This Sensor

• Engine knocking or pinging during acceleration
• Reduced engine performance due to detonation
• Check engine light triggered by knock sensor faults
• Poor fuel economy related to improper ignition timing
• Engine misfire caused by inaccurate knock detection

Installation Notes and Tips

Installation of the Walker Products 242-1052 ignition knock sensor requires careful handling of the wiring harness and connector to ensure a secure fit. Since mounting hardware is not included, verify the condition of existing bolts or screws before installation. The sensor’s blade terminals and rectangular connector are designed for direct replacement in compatible Ford, Mazda, and Mercury models. Always disconnect the battery before installation to prevent electrical damage.

Quality Assurance and Warranty

Walker Products maintains strict quality control standards for their emission control sensors, including the 242-1052 ignition knock sensor. This part is manufactured to meet or exceed OEM specifications for durability and performance. Warranty details should be confirmed with the point of purchase or manufacturer documentation.