Bosch 18161 Oxygen Sensor - Upstream

Bosch Validated Oxygen Sensor for Dodge Dart

Bosch Part Number 18161 is a specific-fit oxygen sensor for 2013-2016 Dodge Dart upstream applications. It uses a heated narrow-band design with a threaded 18 mm mount and a 5-wire harness to deliver accurate air-fuel feedback to the ECU for stable closed-loop operation.

Key Features

• Fits 2013-2016 Dodge Dart, upstream
• Bosch Validated Oxygen Sensor line for OE-style replacement coverage
• Heated oxygen sensor with narrow-band sensing
• Specific-fit design with included wiring harness
• Square male connector, blade terminals, 8-terminal connector layout
• Threaded 18 mm mounting with 22 mm hex size
• Metal housing built for high-temperature and vibration exposure

Product Details

Bosch 18161 is built for vehicles that rely on precise exhaust oxygen measurement to manage fuel delivery and emissions control. On the 2013-2016 Dodge Dart upstream location, this sensor helps the engine control module monitor combustion conditions and adjust fueling during closed-loop operation. Bosch’s validated oxygen sensor program draws on decades of OE development, including ceramic sensing elements, controlled heater operation, and materials selected for demanding underhood conditions. This part cross-references Mopar 68087364AA for the same application.

What This Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Rough idle caused by inaccurate air-fuel feedback
• Excess fuel consumption from delayed sensor response
• Failed emissions inspection tied to upstream sensor faults
• Slow closed-loop transition after cold start

Installation Notes and Tips

Confirm the upstream location before ordering, since this Bosch 18161 sensor is application-specific for the listed Dodge Dart fitment. Match the 18 mm thread size, square connector shape, and 5-wire harness layout to the original sensor before installation. Inspect the exhaust bung threads and connector condition, and route the harness away from heat sources and moving components.

Quality Assurance

Bosch backs this oxygen sensor with more than five decades of OE sensor development and validated aftermarket coverage. The Bosch Validated Oxygen Sensor line is built to deliver OE-proven fit, signal accuracy, and durability for emission control service.