Walker 1004-1091 Nitrogen Oxide (NOx) Sensor - SCR Catalyst Inlet
Walker Genuine OE NOx Sensor 1004-1091
Walker Genuine OE NOx Sensor 1004-1091 is built for diesel and gasoline emission systems that rely on accurate nitrogen oxide monitoring. It uses OE-style materials, connector design, and harness length for a direct replacement on specific applications, including Mercedes-Benz and Freightliner vehicles where SCR system performance depends on precise sensor input.
Key Features
- Genuine OE line NOx sensor for emission control systems
- Specific-fit design with OE connector and harness length
- Black female square connector with multi-colored, matte finish housing
- Built for SCR aftertreatment monitoring and NOx measurement
- Engineered for heat, vibration, and corrosive exhaust conditions
- Part number 1004-1091 for service matching and lookup
Product Details
Walker Products’ Genuine OE line focuses on emission components produced to OE supplier standards, with attention to material quality and sensor accuracy. This NOx sensor supports selective catalytic reduction systems by measuring exhaust nitrogen oxide levels so the vehicle’s aftertreatment strategy can respond correctly. For diesel applications, that helps maintain SCR efficiency and protect downstream components such as diesel particulate filters. The 1004-1091 sensor is a specific-fit replacement for vehicles that require the same connector style and harness configuration as the original part. This part cross-references Mercedes-Benz A0101531828 for the same application.
What It Can Help Address
- NOx sensor fault codes related to exhaust emissions monitoring
- SCR system performance issues caused by inaccurate sensor readings
- Aftertreatment inefficiency on diesel emission systems
- Check engine lights tied to emission control diagnostics
- Premature stress on DPF and related exhaust components
Installation Notes and Tips
Verify connector shape, connector gender, and harness routing before installation. This sensor is a specific-fit replacement, so confirm the vehicle application and position against the original part number 1004-1091 before service. For best results, inspect the exhaust harness, connectors, and nearby heat shielding for damage or corrosion before installing the new sensor.
Quality Assurance
Walker Genuine OE NOx Sensors are produced by Tier 1 OE suppliers and built to OE-level material and manufacturing standards. The line is field-proven in demanding exhaust environments and supported by Walker Products technical expertise for emission system service.
Original: $355.20
-65%$355.20
$124.32Walker 1004-1091 Nitrogen Oxide (NOx) Sensor - SCR Catalyst Inlet
Walker Genuine OE NOx Sensor 1004-1091
Walker Genuine OE NOx Sensor 1004-1091 is built for diesel and gasoline emission systems that rely on accurate nitrogen oxide monitoring. It uses OE-style materials, connector design, and harness length for a direct replacement on specific applications, including Mercedes-Benz and Freightliner vehicles where SCR system performance depends on precise sensor input.
Key Features
- Genuine OE line NOx sensor for emission control systems
- Specific-fit design with OE connector and harness length
- Black female square connector with multi-colored, matte finish housing
- Built for SCR aftertreatment monitoring and NOx measurement
- Engineered for heat, vibration, and corrosive exhaust conditions
- Part number 1004-1091 for service matching and lookup
Product Details
Walker Products’ Genuine OE line focuses on emission components produced to OE supplier standards, with attention to material quality and sensor accuracy. This NOx sensor supports selective catalytic reduction systems by measuring exhaust nitrogen oxide levels so the vehicle’s aftertreatment strategy can respond correctly. For diesel applications, that helps maintain SCR efficiency and protect downstream components such as diesel particulate filters. The 1004-1091 sensor is a specific-fit replacement for vehicles that require the same connector style and harness configuration as the original part. This part cross-references Mercedes-Benz A0101531828 for the same application.
What It Can Help Address
- NOx sensor fault codes related to exhaust emissions monitoring
- SCR system performance issues caused by inaccurate sensor readings
- Aftertreatment inefficiency on diesel emission systems
- Check engine lights tied to emission control diagnostics
- Premature stress on DPF and related exhaust components
Installation Notes and Tips
Verify connector shape, connector gender, and harness routing before installation. This sensor is a specific-fit replacement, so confirm the vehicle application and position against the original part number 1004-1091 before service. For best results, inspect the exhaust harness, connectors, and nearby heat shielding for damage or corrosion before installing the new sensor.
Quality Assurance
Walker Genuine OE NOx Sensors are produced by Tier 1 OE suppliers and built to OE-level material and manufacturing standards. The line is field-proven in demanding exhaust environments and supported by Walker Products technical expertise for emission system service.
Product Information
Product Information
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Description
Walker Genuine OE NOx Sensor 1004-1091
Walker Genuine OE NOx Sensor 1004-1091 is built for diesel and gasoline emission systems that rely on accurate nitrogen oxide monitoring. It uses OE-style materials, connector design, and harness length for a direct replacement on specific applications, including Mercedes-Benz and Freightliner vehicles where SCR system performance depends on precise sensor input.
Key Features
- Genuine OE line NOx sensor for emission control systems
- Specific-fit design with OE connector and harness length
- Black female square connector with multi-colored, matte finish housing
- Built for SCR aftertreatment monitoring and NOx measurement
- Engineered for heat, vibration, and corrosive exhaust conditions
- Part number 1004-1091 for service matching and lookup
Product Details
Walker Products’ Genuine OE line focuses on emission components produced to OE supplier standards, with attention to material quality and sensor accuracy. This NOx sensor supports selective catalytic reduction systems by measuring exhaust nitrogen oxide levels so the vehicle’s aftertreatment strategy can respond correctly. For diesel applications, that helps maintain SCR efficiency and protect downstream components such as diesel particulate filters. The 1004-1091 sensor is a specific-fit replacement for vehicles that require the same connector style and harness configuration as the original part. This part cross-references Mercedes-Benz A0101531828 for the same application.
What It Can Help Address
- NOx sensor fault codes related to exhaust emissions monitoring
- SCR system performance issues caused by inaccurate sensor readings
- Aftertreatment inefficiency on diesel emission systems
- Check engine lights tied to emission control diagnostics
- Premature stress on DPF and related exhaust components
Installation Notes and Tips
Verify connector shape, connector gender, and harness routing before installation. This sensor is a specific-fit replacement, so confirm the vehicle application and position against the original part number 1004-1091 before service. For best results, inspect the exhaust harness, connectors, and nearby heat shielding for damage or corrosion before installing the new sensor.
Quality Assurance
Walker Genuine OE NOx Sensors are produced by Tier 1 OE suppliers and built to OE-level material and manufacturing standards. The line is field-proven in demanding exhaust environments and supported by Walker Products technical expertise for emission system service.
