Features 1、OE Number: The referencing OE number of this NOX sensor are WK97367, 21636091, 21567764, 21479638, 22303390, 102013. 2、Fitment: The inlet nox sensor is a replacement for VNL VAH VNM VHD VNR Truck 2010‑2016, replacement for Mack GU4 GU5 GU7 GU8 CHU CXU TD700 2010‑2016. 3、Function: The nox sensor is used to check the nitrogen oxide content of the exhaust to optimize exhaust and fuel economy, which is practical and energy saving. 4、Practical: This nitrogen oxide sensor has high precision, made of metal material, anti wear, impact resistant, and rust proof, to ensure long service life. 5、Fine Workmanship: Professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability. Specification Item Type: NOX Sensor OE Number: WK97367, 21636091, 21567764, 21479638, 22303390, 102013 Material: Metal Fitment: Replacement for VNL VAH VNM VHD VNR Truck 2010-2016 Replacement for Mack GU4 GU5 GU7 GU8 CHU CXU TD700 2010-2016 Package List 1 x NOX Sensor