Dorman 904-6043 Nitrogen Oxide (NOx) Sensor - SCR Catalyst Inlet or SCR Catalyst Outlet

Dorman 904-6043 NOx Sensor Overview

Dorman 904-6043 is a specific-fit nitrogen oxide sensor built to match the original equipment sensor on select vehicle applications. It restores NOx detection for emissions system monitoring and helps keep the vehicle’s emissions controls operating as intended.

For drivers searching for a NOx sensor for Honda, Toyota, or other OE-matched applications, this Dorman sensor is built around the original connector and harness layout for a direct replacement approach.

Key Features

• Specific-fit NOx sensor for emissions control systems
• Matches original equipment sensor design for select applications
• Black and silver housing with plated finish
• 5-terminal female connector with blade terminals
• Connector shape: rounded rectangle
• Wiring harness length: 620 mm
• Wire gauge: 18
• Package contents: sensor with module

Detailed Description

This nitrogen oxide sensor is engineered to restore accurate NOx measurement in vehicles equipped with emissions monitoring systems. Dorman 904-6043 is a direct replacement style part that follows the OE sensor layout, including connector style, terminal count, and harness length, to support proper integration with the vehicle’s emissions control electronics. This part cross-references 2HN001 and 89463E0020 for the same application.

When a NOx sensor begins to fail, the vehicle may not report exhaust gas conditions correctly. That can affect emissions system performance and trigger fault codes. This replacement sensor is intended for select Honda and Toyota applications where the original sensor configuration matches the listed design.

What It Helps Address

• NOx sensor fault codes related to emissions monitoring
• Incorrect nitrogen oxide readings from a failing sensor
• Emissions system warning lights tied to sensor performance
• Restoring OE-style sensor communication in select Honda and Toyota applications
• Loss of emissions compliance caused by a worn or damaged sensor

Installation Notes and Tips

Verify the connector shape, terminal count, harness length, and OE part number before ordering. This is a specific-fit sensor, so application matching is important for proper installation. Inspect the harness routing and connector condition during replacement, and confirm the sensor location against the vehicle service information for the exact model year.

For buyers searching by part number, Dorman 904-6043 is the reference to use when comparing against the original sensor on the vehicle. Confirm fitment for the exact year, make, and model before installation.

Quality Assurance

Dorman manufactures this NOx sensor to match the original equipment sensor configuration on select vehicles, with the goal of restoring nitrogen oxide detection and emissions-system function. The OE-style design supports a direct replacement approach for applications that require this sensor layout.