Nitrogen Oxide Sensor 4326870 is compatible with Cummins ISV, ISX12, ISX15, QSX15, X15, QSB3.3, QSB4.5, QSB6.7, QSK60, QSL9, and QST30 engines. It measures NOx in the exhaust stream to support emissions compliance. Made to OEM standards for precise measurement and durability.

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