Mopar 68570138AA - Knock Sensor

Description

The Mopar 68570138AA Engine Knock Sensor is an authentic factory Original Equipment (OE) piezoelectric acoustic sensor engineered specifically for modern Chrysler, Dodge, Jeep, and Ram Gen III HEMI V8 engine platforms. This critical sensor monitors the engine block for abnormal vibrations indicative of pre-ignition (detonation or "knock"). It converts these mechanical vibrations into electrical signals, which are processed by the Engine Control Module (ECM/PCM) to dynamically retard ignition timing and protect the engine from catastrophic internal damage caused by high-cylinder pressures, low-octane fuel, or extreme thermal loads. It is the required factory replacement for correcting P0325, P0327, or P0330 Diagnostic Trouble Codes (DTCs) and restoring optimal fuel economy and horsepower.

Key Technical Specifications:
Product Type: Piezoelectric Engine Knock Sensor (KS) Technology: Wide-band piezoelectric ceramic element
Function: Detects harmonic engine vibrations (detonation) and signals the PCM for timing adjustment
Mounting Style: Single-bolt engine block valley / side-mount (application specific)
Terminal Type: OEM Weather-Pack sealed connector
Replaces / Supersedes Part Numbers: 68223050AA