The Walker Products Ignition Knock (Detonation) Sensor (part number 242-1030) is a direct-fit replacement for 1999-2004 Mercury and Nissan vehicles with 3.3L and 2.4L 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:
- OE Replacement Sensitivity:Â Calibrated to match factory frequency response and output for seamless ECU integration and spark control.
- 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.
- Built for Harsh Environments:Â Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.
- Restores Ignition Timing Accuracy:Â Supports optimal fuel efficiency, performance, and emissions by correcting spark advance during knock conditions.
Specifications:
| Number of Terminals | 2 |
| Connector Type | Blade |
| Connector Shape | Rectangle |
| Connector Gender | Male |
| Terminal Gender | Female |
Fits: 1999-2004 Mercury and Nissan models including Villager, Frontier, Pathfinder, Quest, and Xterra — 3.3L and 2.4L 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: Forecast KS6, Ford XF5212A699AA, Ford XF5Z12A699A, Ford XF5Z12A699AA, NTK ID0138, Advan-Tech 6D3, Standard Import 70036, Hitachi Astemo KNS0003 and 11 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.
