The Walker Products Ignition Knock (Detonation) Sensor (part number 242-1070) is a direct-fit replacement for 1999-2004 Ford, Mazda, and Mercury vehicles with 2.0L and 4.2L engines. Walker Products Knock Sensors are OE Replacement components that detect engine detonation to help the ECU adjust timing and prevent internal engine damage.
Features:
- Detects Engine Knock:Â Monitors vibration frequencies to detect detonation and prevent pre-ignition engine damage.
- Exact OE Fit: Installs directly into original mounting locations using factory connectors and threads—no modifications required.
- Restores Ignition Timing Accuracy:Â Supports optimal fuel efficiency, performance, and emissions by correcting spark advance during knock conditions.
- OE Replacement Sensitivity:Â Calibrated to match factory frequency response and output for seamless ECU integration and spark control.
- Built for Harsh Environments:Â Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.
Specifications:
| Number of Terminals | 4 |
| Connector Type | Blade |
| Connector Shape | Square |
| Connector Gender | Female |
| Terminal Gender | Male |
Fits: 1999-2004 Ford, Mazda, and Mercury models including Contour, E-150 Econoline, E-150 Econoline Club Wagon, E-250 Econoline, Escape, Focus, Tribute, and Mystique — 2.0L and 4.2L engines.
Confirm the year, make, model, and engine against your vehicle before ordering. Full application data is shown in the fitment lookup on this page.
Interchanges With: Ford 1054014, Ford 988F12A699BB, Ford 988F12A699BC, Ford X52Z12A699BA, Ford XS2Z12A699BA, Wells SU2268, NTK ID0140, Bosch 0261231124 and 6 more
WARNING: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm.
