The Walker Products Ignition Knock (Detonation) Sensor (part number 242-1071) is a direct-fit replacement for 1997-2005 Cadillac and Saturn vehicles with 3.0L and 3.2L 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:
- 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.
- Restores Ignition Timing Accuracy:Â Supports optimal fuel efficiency, performance, and emissions by correcting spark advance during knock conditions.
- 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.
Specifications:
| Number of Terminals | 2 |
| Connector Type | Blade |
| Connector Shape | Rectangle |
| Connector Gender | Male |
| Terminal Gender | Female |
Fits: 1997-2005 Cadillac and Saturn models including Catera, CTS, L300, LS2, LW2, LW300, and Vue — 3.0L and 3.2L 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: VEMO V40-72-0435, Hoffer Products 7517787, Fispa 83.3091, NTK ID0233, Opel 6238415, Werner Metzger GmbH 0907060, Facet 9.3223, Cadillac 90541521 and 15 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.
