Industrial 22690-7S000 Oxygen Sensor

A matched upstream and downstream heated oxygen sensor set for Nissan Maxima 3.5L V6 exhausts provides precise air-fuel ratio feedback to the ECU and monitors catalytic converter efficiency for emissions compliance and diagnostic readiness. Upstream Bank 1 Sensor 1 supplies real-time AFR data, while downstream Bank 1 Sensor 2 checks catalyst efficiency to verify emissions performance. The sensors feature an integrated 12V heater for fast warm-up, M18 x 1.5 thread, stainless steel housing with a ceramic sensing element, and an OEM sealed multi-pin connector, with output 0.1–0.9 V switching (narrowband type typical) or AFR wideband variant depending on configuration. Compatible with Nissan Maxima 3.5L V6 across multiple model years (typically 2009–present). Common replacements include Denso upstream + downstream O2 sensor set for Nissan Maxima 3.5L, Bosch direct-fit oxygen sensor pair for Maxima 3.5L applications, and NTK/NGK OEM replacement oxygen sensor kits for Nissan VQ35DE/VQ35DD engines.