Walker 242-1059 Ignition Knock (Detonation) Sensor

Walker Products 242-1059 Ignition Knock Sensor

Walker Products 242-1059 is an ignition knock sensor for select Ford, Lincoln, and Mercury applications. It is built with a square connector, 2 terminals, and a 500.0000 length with a 412.7500 wiring harness length for direct replacement service on listed vehicles.

Key Features

• Ignition knock (detonation) sensor for engine management service
• Square 1-connector design with male connector and female terminals
• Blade terminal type with 2 terminals
• Wiring harness included for installation on listed applications
• Walker Products part number 242-1059
• Cross-references Bosch 0261231183 and Standard Ignition KS228 for the same application

Product Details

Walker Products has supplied fuel system and engine sensor components since 1946 and supports aftermarket service with engineering, product management, and technical documentation. The 242-1059 knock sensor is manufactured to meet or exceed OEM standards and specifications, making it a direct-fit replacement for vehicles that rely on accurate detonation feedback to help the engine control system manage spark timing. This part number 242-1059 is listed for Ford Expedition, Ford Escape, Ford F-150, Ford F-250 Super Duty, Ford F-350 Super Duty, Ford Fusion, Ford Mustang, Lincoln Navigator, Lincoln Mark LT, Mercury Mariner, and Mercury Milan applications.

Vehicle Fitment

• Fits 2005-2014 Ford Expedition, N/A
• Fits 2009-2012 Ford Escape, N/A
• Fits 2009-2010 Ford F-150, N/A
• Fits 2005-2010 Ford F-250 Super Duty, N/A
• Fits 2005-2010 Ford F-350 Super Duty, N/A
• Fits 2010 Ford Fusion, N/A
• Fits 2007-2010 Ford Mustang, N/A
• Fits 2006-2008 Lincoln Mark LT, N/A
• Fits 2005-2008 Lincoln Navigator, N/A
• Fits 2011-2014 Lincoln Navigator, N/A
• Fits 2009-2011 Mercury Mariner, N/A
• Fits 2010 Mercury Milan, N/A

What It Helps Address

• Knock sensor fault codes related to detonation detection
• Engine pinging or spark knock under load
• Rough running caused by incorrect ignition timing feedback
• Check engine light concerns tied to the knock sensor circuit
• Driveability issues on select Ford, Lincoln, and Mercury models

Installation Notes and Tips

Verify connector shape, terminal count, and harness length against the original sensor before installation. This part uses a square connector with a male connector body and female terminals, so matching the OE-style connection is important for proper fitment. Confirm the vehicle application by year and model, especially on Lincoln Navigator and Lincoln Mark LT listings where the notes indicate a dual-sensor system requiring both sensors for proper function.

Quality Assurance

Walker Products is an ISO 9001 and IATF 16949 certified manufacturer with in-house engineering and product support. The brand states that its engine sensors are produced to meet or exceed OEM standards and specifications, with application data and technical support maintained by its own staff.