Genuine Volvo® and Mack® Inlet NOx Sensor.
The 22303390 is a direct-fit inlet (upstream) nitrogen oxide sensor designed for Volvo and Mack heavy-duty diesel trucks. This sensor monitors levels in exhaust gases to optimize emissions, fuel efficiency, and selective catalytic reduction (SCR) system operation.
Cross-Reference Numbers:
Position: Upstream / Inlet (installed on the pre-SCR side of the exhaust / bottom of the DPF filter).
Continental / Siemens Index Number: 5WK97367.
Interchangeable OEM Part Numbers: 21636091, 21567764, 21479638, 21346959, 21302275, 21227721, and 20958942.
Genuine Volvo® and Mack® Inlet NOx Sensor.
The 22303390 is a direct-fit inlet (upstream) nitrogen oxide sensor designed for Volvo and Mack heavy-duty diesel trucks. This sensor monitors levels in exhaust gases to optimize emissions, fuel efficiency, and selective catalytic reduction (SCR) system operation.
Cross-Reference Numbers:
Position: Upstream / Inlet (installed on the pre-SCR side of the exhaust / bottom of the DPF filter).
Continental / Siemens Index Number: 5WK97367.
Interchangeable OEM Part Numbers: 21636091, 21567764, 21479638, 21346959, 21302275, 21227721, and 20958942.
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