Walker 1004-1082 Nitrogen Oxide (NOx) Sensor - Upstream

Walker Genuine OE NOx Sensor 1004-1082

Walker Genuine OE NOx Sensor 1004-1082 is built for diesel and gasoline emission systems that rely on accurate nitrogen oxide monitoring. It uses OE-style connectors and harness lengths for a direct replacement on select applications, including domestic and import vehicles such as Ford F-250 and Ram 2500 where NOx sensor performance is critical.

Key Features

• Genuine OE line NOx sensor for selective catalytic reduction (SCR) systems
• OE connectors and harness length for plug-and-play installation
• Metal finish with black connector housing
• 4-terminal design with square connector shape
• Built for high heat, vibration, and corrosive exhaust environments
• Supports accurate NOx measurement for emission system control

Product Details

Walker Products Genuine OE Produced NOx Sensors are manufactured to OE-level standards using materials and precision technology associated with Tier 1 suppliers. Part number 1004-1082 is used to monitor nitrogen oxide levels in SCR-equipped exhaust systems, helping the vehicle’s aftertreatment strategy maintain proper operation. Accurate sensor input supports DPF protection and overall diesel engine efficiency. This part cross-references Sunsong 2205164 for the same application.

Common Issues This Sensor Can Address

• Check engine light related to NOx sensor faults
• Incorrect NOx readings in SCR-equipped exhaust systems
• Aftertreatment performance problems tied to emission monitoring
• Reduced diesel particulate filter protection from inaccurate exhaust data
• Connector or harness mismatch during OE-style replacement

Installation Notes

Use the OE connector and harness layout to confirm proper routing before installation. Verify the connector shape, terminal style, and terminal count against the original sensor on the vehicle. For fitment-specific service on Ford F-250 and Ram 2500 applications, match the original part number and sensor location before replacement. Part number 1004-1082 is designed as a direct-fit style replacement where listed.

Quality Assurance

Walker Genuine OE NOx sensors are produced by Tier 1 OE suppliers and built to meet the demands of modern emission systems. The Genuine OE line focuses on OE-level fit, materials, and electrical performance for dependable service in demanding exhaust conditions.