Mopar 68166540AA Ignition Knock (Detonation) Sensor

Mopar Knock Sensor for 3.6L Applications

Mopar part number 68166540AA is an ignition knock sensor, also referred to as a detonation sensor, for select Chrysler, Dodge, Jeep, and Ram vehicles. It is used in 3.6L V6 24V VVT engine applications where accurate knock detection is needed for proper engine management.

Key Features

• Genuine Mopar ignition knock sensor
• Part number 68166540AA, superseding 68166540AB
• Fits select 2013-2018 Dodge Journey applications
• Fits select 2013-2018 Jeep Wrangler applications
• Fits select 2013-2017 Chrysler 200, Dodge Durango, and Ram 1500 applications
• Compact sensor dimensions: 2.500 in. width, 1.810 in. height, 3.620 in. length

Detailed Description

This Mopar knock sensor 68166540AA is built for vehicles that rely on precise detonation monitoring to help the engine control system respond to abnormal combustion. It is listed for a wide range of Chrysler, Dodge, Jeep, and Ram models, including the Dodge Journey, Jeep Wrangler, and Ram 1500, with fitment spanning model years from 2013 through 2018 depending on application. For buyers searching by vehicle, this part number is commonly referenced for 2013-2018 Dodge Journey, 2013-2018 Jeep Wrangler, and 2013-2017 Ram 1500 knock sensor replacement needs.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Knock sensor fault codes
• Engine pinging or detonation-related drivability concerns
• Check engine light conditions tied to knock detection
• Incorrect ignition timing response from the engine control system
• Failed or aging detonation sensor replacement needs

Installation Notes and Tips

Verify the engine and model-year fitment before ordering, since this Mopar 68166540AA sensor is used across multiple platforms with different year ranges. Confirm the connector style, mounting location, and engine configuration against the vehicle service information before installation. For best results, inspect the wiring harness and connector for corrosion or damage when replacing the sensor.

Quality Assurance

Mopar OE parts are built to match factory application requirements for Chrysler, Dodge, Jeep, and Ram vehicles. This helps support accurate fitment for the listed applications, including Jeep Cherokee, Chrysler Pacifica, and Dodge Charger models where applicable.