The Walker Products Nitrogen Oxide (NOx) Sensor (part number 1004-1039) is a direct-fit replacement for 2011-2012 Alexander Dennis, American Coach, American LaFrance, and Autocar LLC. vehicles with 8.9L engines. NOx sensors in vehicle exhaust systems measure nitrogen oxide emissions, aiding ECM in emissions control for compliance with environmental regulations and ensuring efficient operation of systems like Selective Catalytic Reduction (SCR)
Features:
- Engineered for Precision – Features advanced sensing technology and exact OE materials for consistent, high-accuracy NOx detection in extreme conditions.
- Fleet-Tested Reliability – Proven in demanding commercial and diesel applications for reduced downtime and fewer replacements.
- Accurate Emission Control – Delivers precise NOx readings to help maintain peak SCR system efficiency and lower emissions.
- Plug-and-Play Installation – Designed for direct OE replacement, reducing install time and eliminating compatibility issues.
Specifications:
| Number of Terminals | 4 |
| Connector Shape | Square |
| Connector Gender | Male |
| Terminal Gender | Female |
| Fit Type | Direct Fit |
Fits: 2011-2012 Alexander Dennis, American Coach, American LaFrance, Autocar LLC., and Crane Carrier models including Enviro400, American Eagle, American Revolution, American Tradition, ALF Eagle, Condor, Xpeditor, Low Entry and more — 8.9L engines.
Confirm the year, make, model, and engine against your vehicle before ordering. Full application data is shown in the fitment lookup on this page.
Fitment Notes: EPA13; 24V
Interchanges With: Cummins 4326867, Cummins 4326475, Cummins A044C666, Cummins A045S161
WARNING: This product can expose you to chemicals, including Nickel and Nickel Alloyed Stainless Steel, which are known to the State of California to cause cancer or birth defects or other reproductive harm.
