Description
The Automann 577.46801 NOx Sensor SCR Outlet is a Fleet Standard replacement designed for Detroit Diesel DD13, DD15, and DD16 engines manufactured from 2012 through 2021. Additionally, it measures nitrogen oxide (NOx) levels after the SCR system and sends accurate data to the engine control unit (ECU). As a result, the emissions system can operate efficiently while supporting proper engine performance and emissions compliance.
Furthermore, this sensor fits a variety of heavy-duty truck applications, including Freightliner, Western Star, Van Hool, Pierce Manufacturing, and Sterling vehicles equipped with compatible Detroit Diesel engines. Because accurate NOx readings are essential for modern emissions systems, replacing a faulty sensor helps maintain reliable operation and reduce the likelihood of fault codes.
Reliable Performance and Direct Replacement
Automann manufactures the 577.46801 to deliver dependable Fleet Standard quality for commercial truck applications. Moreover, the aluminum housing and protective heat sleeve help resist warping and cracking in high-temperature exhaust environments. Consequently, the sensor delivers long-lasting performance even under demanding operating conditions.
In addition, this NOx sensor installs as a direct replacement, helping simplify repairs while restoring proper SCR system operation. Therefore, technicians can complete maintenance efficiently and help minimize vehicle downtime.
Applications and Compatibility
The Automann 577.46801 SCR Outlet NOx Sensor is compatible with:
- Detroit Diesel DD13 (2012-2021)
- Detroit Diesel DD15 (2012-2021)
- Detroit Diesel DD16 (2012-2021)
- Freightliner
- Western Star
- Van Hool
- Pierce Manufacturing
- Sterling Trucks
However, always verify your engine model, vehicle application, connector style, and OEM part number before ordering to ensure proper fitment.
Features
- Fleet Standard quality from Automann
- Direct replacement SCR outlet NOx sensor
- Designed for Detroit Diesel DD13, DD15, and DD16 engines
- Compatible with 2012-2021 applications
- 4-terminal female connector
- Aluminum housing helps resist warping
- Protective heat sleeve improves durability
- Supports proper SCR and emissions system performance
- Helps maintain fuel efficiency and emissions compliance
- Parcel-friendly shipping
Specifications for 577.46801 NOx Sensor SCR Outlet
- Part Number: 577.46801
- Brand: Automann
- Product Type: SCR Outlet NOx Sensor
- Application: Detroit Diesel
- Engine Models: DD13, DD15, DD16
- Model Years: 2012-2021
- Connector: 4-Terminal Female
- Weight: 0.60 lbs
- Package Dimensions: 8.625 × 4.875 × 2.656 inches
- Unit Size: 1 Each
Cross References for 577.46801 NOx Sensor SCR Outlet
- Freightliner A0101532328
- Detroit Diesel DDEA0101532328
Additionally, this sensor serves as a direct replacement for compatible OEM applications. As a result, it helps restore proper emissions monitoring and SCR system performance.
For more heavy-duty truck sensors, emissions components, and electrical parts, visit our shop at https://mtctruckparts.com/shop/. You can also learn more about commercial trucking and emissions regulations by visiting https://www.trucking.org/.

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