Walker 285-1015 Nitrogen Oxide (NOx) Sensor - Upstream

Walker Genuine OE NOx Sensor 285-1015

Walker Genuine OE Part Number 285-1015 is a nitrogen oxide sensor built for emission control systems that rely on accurate exhaust gas monitoring. It is a direct-fit solution for the 2018-2021 Ford F-150 upstream application listed here, with OE-style connectors and harness length for straightforward replacement.

Key Features

• Genuine OE line NOx sensor for emission control systems
• Fits 2018-2021 Ford F-150, upstream
• Gray connector and gray sensor body
• 5-terminal design with pin terminals
• Female connector with male terminals
• Oblong connector shape for OE-style fitment
• Built for SCR aftertreatment monitoring and exhaust system accuracy
• Walker part number 285-1015 for catalog and service reference

Product Details

Walker Products Genuine OE NOx sensors are produced to meet the demands of modern diesel and gasoline emission systems. This sensor measures nitrogen oxide levels in the exhaust stream so the vehicle’s aftertreatment system can manage SCR operation accurately. On the 2018-2021 Ford F-150 upstream location, that measurement helps maintain proper emission-system performance and supports the protection of downstream components such as the diesel particulate filter.

The Genuine OE product line from Walker focuses on OE-level materials, precision manufacturing, and direct replacement fit. Part number 285-1015 is engineered with OE connectors and harness dimensions to simplify service on the Ford F-150 and other listed applications in the broader catalog.

What It Helps Address

• Check engine lights related to NOx sensor performance
• Incorrect nitrogen oxide readings in the exhaust stream
• SCR system faults affecting emission control operation
• Aftertreatment inefficiency that can impact DPF protection
• Driveability issues caused by failed upstream emissions feedback

Installation Notes

Install in the upstream position specified for the vehicle application. Verify connector shape, terminal count, and harness routing before installation. Because NOx sensors operate in high-heat exhaust environments, inspect the surrounding wiring, mounting points, and exhaust components for damage or corrosion during service. Confirm the replacement matches the OE connector style and position before clearing fault codes.

Quality Assurance

Walker Genuine OE NOx sensors are manufactured by Tier 1 OE suppliers using high-quality materials and precision technology. They are field-tested for durability in heat, vibration, and corrosive exhaust conditions, with OE-level fit and performance for emission system service.