Walker 285-1016 Nitrogen Oxide (NOx) Sensor - Downstream

Walker Genuine OE NOx Sensor for Diesel Emissions

Walker Genuine OE NOx Sensor Part Number 285-1016 is built for precise nitrogen oxide monitoring in modern emission control systems. It is a direct-fit downstream sensor for 2022-2024 Ram 3500 applications and uses OE-style connectors and harness length for a clean replacement.

For Ram 3500 owners servicing the aftertreatment system, this Walker NOx sensor supports accurate SCR system feedback and dependable exhaust monitoring. The Genuine OE line focuses on OE-level materials and manufacturing standards for consistent fit and signal performance.

Key Features

• Part Number 285-1016 Walker Genuine OE NOx Sensor
• Downstream fitment for 2022-2024 Ram 3500
• Gray connector with oblong shape
• 4-terminal design with spade terminal type
• OE connector and harness length for direct replacement
• Built for high-heat, vibration, and corrosive exhaust environments
• Supports SCR aftertreatment monitoring and NOx measurement

Product Details

Walker Products Genuine OE NOx sensors are produced to meet the demands of diesel and gasoline emission systems. This sensor measures nitrogen oxide levels in the exhaust stream so the vehicle’s control system can manage aftertreatment operation more accurately. On a Ram 3500, that means reliable downstream feedback for emission system performance and protection of related components such as the DPF.

Part Number 285-1016 is engineered as a plug-and-play replacement with OE-style electrical connection points. The gray connector, male and female connector interfaces, and 4-terminal layout support straightforward service work when replacing a failed downstream sensor on 2022-2024 Ram 3500 trucks.

Common Problems This Sensor Can Address

• Fault codes related to downstream NOx sensor performance
• Incorrect nitrogen oxide readings in the SCR system
• Emission system warning lights on 2022-2024 Ram 3500 models
• Reduced aftertreatment efficiency caused by a failing sensor
• Service issues tied to heat, vibration, or exhaust corrosion

Installation Notes and Tips

Verify the downstream location before installation and compare the connector shape, terminal count, and harness routing to the original sensor. Clean the mounting area and inspect the exhaust-side connector for heat damage or corrosion before connecting the replacement. For Ram 3500 service, confirm the part number 285-1016 matches the original application and clear any stored diagnostic codes after installation.

Quality Assurance

Walker Genuine OE NOx sensors are manufactured by Tier 1 OE suppliers using OE-level materials and precision technology. The Genuine OE line is field-proven for emission system service and built for consistent performance in demanding exhaust conditions.