Walker 242-1052 Ignition Knock (Detonation) Sensor

Walker 242-1052 Knock Sensor for Ford and Mazda

Walker Products 242-1052 is an ignition knock sensor built for select Ford, Mercury, and Mazda applications. It uses a rectangular 1-connector, 2-terminal design with a male connector, female blade terminals, and an included wiring harness for a direct replacement-style repair.

Compatible With 1999-2011 Ford Ranger, Explorer, Explorer Sport Trac, Mustang, E-150 Econoline, and E-250 Econoline; 1999-2010 Mercury Mountaineer; and 2001-2009 Mazda B4000 applications. The Walker Products 242-1052 is a fitment-based solution for vehicles that need accurate detonation sensing and stable engine management input.

Key Features

• Ignition knock (detonation) sensor for emission control and engine management systems
• Walker Products part number 242-1052
• Rectangular connector shape with 1 connector and 2 terminals
• Male connector and female blade terminals
• Wiring harness included
• Length: 40.7500; wiring harness length: 482.6000
• Compatible With select Ford, Mercury, and Mazda truck and SUV applications

Product Details

Walker Products has supplied automotive fuel system and engine sensor components since 1946, with manufacturing and engineering support focused on meeting or exceeding OEM standards and specifications. The Walker Products 242-1052 knock sensor is part of that engine management lineup and is built for vehicles that rely on precise knock detection to help the engine control system respond correctly under load and changing combustion conditions. This part cross-references Bosch 0261231314 for the same application.

What It Helps Address

• Knock sensor fault codes related to detonation sensing
• Rough running caused by inaccurate knock input
• Timing control issues triggered by a failing sensor signal
• Check engine light concerns tied to engine management sensor faults
• Driveability complaints on Ford Ranger, Explorer, Mustang, and related applications

Installation Notes and Tips

Verify connector style, terminal count, and harness routing before installation. Confirm the vehicle application by year, make, and model, since this part is listed for multiple Ford, Mercury, and Mazda platforms. Inspect the mating connector and wiring for corrosion or damage before connecting the new sensor.

Quality Assurance

Walker Products manufactures engine sensors and related components to meet or exceed OEM standards and specifications. The company is ISO 9001/IATF16949 certified and supports production with in-house product management, engineering, and technical documentation.