- MHD Part #: CM4945
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- Brand: MCT
MCT CM4945 NOx Sensor, Inlet — Replaces Cummins 2894945
Cummins ISB 6.7L 2013-2019 Engine NOx Sensor - Inlet
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Product Overview
The MCT CM4945 is an inlet (upstream) NOx sensor engineered for the Cummins ISB 6.7L platform (2013–2019). It monitors engine-out NOx to support precise SCR dosing and stable emissions control, serving as a direct interchange for Cummins 2894945 and related references.
How NOx Sensors Impact Engine Performance
At Midwest Heavy Duty, our advanced NOx sensor technology is engineered to help your engines perform better by accurately monitoring emissions and ensuring optimal operation of your aftertreatment system.
With reliable NOx readings, your engine can maintain peak efficiency, improve fuel economy, and reduce costly downtime caused by emissions-related faults.
Our sensors help maximize engine uptime by supporting precise control of the Selective Catalytic Reduction (SCR) system, leading to more effective reduction of harmful nitrogen oxides (NOx) while protecting your engine’s long-term health.
How to Maximize Emissions System Performance
- Superior Sensor Accuracy: Delivers precise and real-time feedback to the ECU, allowing the SCR system to make exact adjustments and help minimize DEF overuse and active regens.
- OEM-Grade Durability: Built to meet or exceed original equipment expectations for resistance to heat, vibration, and contamination.
- Faster Diagnostic Capability: Accurate NOx monitoring supports earlier issue detection to avoid fault codes, derates, and unplanned downtime.
Fitment and Position
- Engine: Cummins ISB 6.7L (2013–2019)
- Position: Inlet / Upstream (pre-SCR)
Cross References
- Cummins: 2894945, 5293295, 2900-002
- Dinex: 577.90536
- Dorman: 5EL003
Service Notes
- Verify the OE part number and sensor position (inlet/upstream) before ordering.
- Follow OEM procedures to clear codes and perform any required NOx/SCR adaptations after installation.
Product Features
- Upstream (inlet) NOx sensing provides accurate engine-out data to optimize DEF dosing and emissions control.
- OEM-grade durability resists heat, vibration, and contaminants to extend sensor life.
- Stable real-time signal accuracy supports precise SCR control to help maintain fuel economy.
- Direct interchange with Cummins 2894945 and 5293295 simplifies sourcing and reduces downtime.
- Application-matched for Cummins ISB 6.7L 2013–2019 inlet position to help avoid fitment errors.
- Accurate NOx feedback enables earlier fault detection to prevent derates and unplanned service.
Product Specifications
| Brand: | MCT |
|---|---|
| Part Number: | CM4945 |
| Product Type: | Nox Sensor |
| Category: | Exhaust |
| Sub-Category: | NOx Sensors |
| Position: | Inlet (Upstream) |
| Application: | Cummins ISB 6.7L (2013–2019) |
| Emissions System: | SCR / Aftertreatment |
| Cross Reference (Cummins): | 2894945, 5293295, 2900-002 |
|---|---|
| Cross Reference (Dinex): | 577.90536 |
| Cross Reference (Dorman): | 5EL003 |
| SPN: | TR_CM4945 |
| Shipping Weight: | 1.00 (lbs) |
| Shipping Height: | 3.00 (in) |
| Shipping Width: | 5.00 (in) |
| Shipping Length: | 5.00 (in) |
| Name | Interchange |
|---|---|
| Dinex | 577.90536 |
| Dorman | 5EL003 |
| Interchange | 5293295, 2894945, 2900-002 |
Files and Downloads
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