The replacement knock sensor is made for select 2018-2023 Chrysler, Dodge, Jeep and Ram applications. It detects the vibration frequencies of engine detonation so the engine computer can retard ignition timing.

Walker Products 242-1327 Knock Sensor Features:

• Fits 2018-2022 Chrysler 300, Dodge Charger, Durango; 2018-2023 Chrysler Pacifica, Dodge Challenger, Jeep Grand Cherokee, Wrangler, Ram 1500; 2020-2023 Chrysler Voyager
• Fits 2018-2020 Dodge Grand Caravan; 2019 Dodge Journey; 2018 Jeep Wrangler JK; 2019-2022 Jeep Cherokee, Ram 1500 Classic; 2020-2022 Jeep Gladiator
• Also fits select Chrysler, Dodge, Jeep and Ram applications
• Female oblong electrical connector with 2 spade terminals
• 5 operating voltage
• 51.83 mm (2 in.) overall length
• Plastic and brass construction
• 1 bolt hole
• Mounting hardware not included