The Walker Products Ignition Knock (Detonation) Sensor (part number 242-1236) is a direct-fit replacement for 2005-2015 Dodge and Mercedes-Benz vehicles with 3.5L, 2.5L, and 3.0L 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.
- Restores Ignition Timing Accuracy:Â Supports optimal fuel efficiency, performance, and emissions by correcting spark advance during knock conditions.
- Built for Harsh Environments:Â Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.
- Exact OE Fit: Installs directly into original mounting locations using factory connectors and threads—no modifications required.
Specifications:
| Number of Terminals | 2 |
| Connector Type | Blade |
| Connector Shape | Oblong |
| Connector Gender | Female |
| Terminal Gender | Male |
Fits: 2005-2015 Dodge and Mercedes-Benz models including Sprinter 2500, Sprinter 3500, C230, C280, C300, C350, C63 AMG, CL550 and more — 3.5L, 2.5L, and 3.0L 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: Chrysler 68011852AA, Mercedes-Benz 0041539028, Bosch 0261231188, Beck/Arnley 158-0853
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.
