Mercedes 24V square four-pin NOx sensor 5WK97332A A0101531728 OEM specifications

Mercedes 24V square four-pin NOx sensor (OEM numbers 5WK97332A/A0101531728/0003); uses original ceramic sensing element and high-temperature alloy housing; three-coat conformal coating on PCB; vibration and corrosion resistant; life measured at 80k-100k km. Fits W166, W205, W212 with OM642 or OM651 diesel engines. NOx monitoring and NOx reduction via ECU adjusting injection; install after disconnecting battery negative.