Walker Products 1004-1031 nitrogen oxide (nox) sensor for the 2015-2024 Freightliner Cascadia and other vehicles reads the nitrogen oxide level in the exhaust gas. The reading helps the engine's emission controls judge how well the SCR system is working.
- Sits at the SCR catalyst outlet
- Sold as a single sensor
Quick facts
- Part: Walker Products 1004-1031 nitrogen oxide (nox) sensor
- Fits: 2015-2024 Freightliner Cascadia and other vehicles
- Position: SCR catalyst outlet
- Condition: New
A lit emissions or check engine warning light can mean this sensor is worn, though its wiring connector or the SCR catalyst can be behind the same light, so find the cause before replacing it.
Fits
This nitrogen oxide sensor fits the 2015-2024 Freightliner Cascadia, the 2015-2024 Freightliner 114SD and the 2021-2024 Western Star 49X 6-cylinder 11.9L, 14.8L or 15.6L, the 2022-2024 49X 6-cylinder 14.9L and the 2023-2024 49X 6-cylinder 12.8L, with one sensor per vehicle. For another truck, coach or chassis, look up its year and engine in the "Vehicles it fits" section.
Specifications
- Position: SCR catalyst outlet
- Quantity per vehicle: 1
- Condition: New
Interchange: A0101532328
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is the Walker 1004-1031 NOx sensor right for the 2015-2024 Freightliner Cascadia?
Yes. Walker Products 1004-1031 fits the 2015-2024 Freightliner Cascadia. For another truck or coach, look up its year and engine in the "Vehicles it fits" section.
Will the 1004-1031 nitrogen oxide sensor go on a 2015-2024 Freightliner 114SD?
Yes. Walker Products 1004-1031 is listed for the 2015-2024 Freightliner 114SD.
Where on the exhaust does this NOx sensor mount?
Walker Products 1004-1031 mounts at the SCR catalyst outlet in the exhaust.
What warning might I see when a NOx sensor is going bad?
A driver may notice an emissions or check engine warning light. A shop can read the fault codes and test the sensor and its circuit.
Does A0101532328 cross to Walker Products 1004-1031?
Yes. A0101532328 is an interchange number for Walker Products 1004-1031.
