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NOX Sensor

35 Products
Shop direct-replacement NOx sensors — matched to your engine and aftertreatment to clear emissions faults and derates.

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NOX Sensor Overview

The NOx sensor measures exhaust NOx for the SCR/emissions system; a failed sensor triggers fault codes and engine derates. Van Horn Truck Parts carries NOx sensors cross-referenced to OEM part numbers.

Match by your engine, aftertreatment system, and sensor position (inlet/outlet).

Mechanic & Fitment Specs:

  • Match by: Engine, aftertreatment system, position (inlet/outlet)
  • Cross-references: OEM
  • Buying tip: Note inlet vs. outlet position — they're different sensors
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