Volvo Truck NOx Sensor 5WK96617A 21069361 OEM Match

NOx sensor designed for Volvo truck family, compatible with 2010-2018 FH, FM, FH16 models (11L, 13L, 16L engines). Monitors NOx concentration in exhaust and feeds ECU to optimize SCR system for lower emissions and better fuel efficiency. OEM numbers 5WK96617A and 21069361; cross-check with OEM parts to prevent incorrect purchase. Replacement difficulty moderate; professional technician recommended; verify sensor mounting location (usually near exhaust or SCR catalyst) and secure wiring. For B2B buyers, note this sensor is an OEM match part, not universal; stock prioritized for Volvo mainstream models to reduce returns.