Bosch 13407 Oxygen Sensor - Downstream or Upstream

Bosch Oxygen Sensor 13407 Overview

Bosch 13407 is a narrow-band heated oxygen sensor built for specific vehicle applications that require accurate air-fuel feedback to the ECU. It uses a threaded mounting design, a 4-wire harness, and a female oblong connector to support stable closed-loop fuel control and consistent emissions monitoring.

Compatible With 2004-2006 Mitsubishi Lancer upstream applications, and 1996-1999 Chrysler Sebring, Dodge Avenger, and Mitsubishi Eclipse downstream applications. Bosch Engineered Oxygen Sensor 13407 is part of Bosch’s OE-focused oxygen sensor line, developed from decades of original equipment engineering and refined with faster light-off response, improved lambda accuracy, and reliable heater control.

Key Features

• Narrow-band heated oxygen sensor for precise exhaust feedback
• Specific-fit design with threaded mounting
• 4-wire configuration with included wiring harness
• Female oblong connector with pin terminals
• 18 mm thread size and 22 mm hex size
• Metal housing for high-temperature and vibration resistance
• Standard replacement grade for direct service applications

Detailed Description

Bosch 13407 is engineered to measure oxygen content in the exhaust stream and send accurate signals to the engine control unit, helping maintain stable combustion control across changing operating conditions. The heated narrow-band design supports quicker closed-loop operation after startup, while Bosch’s ceramic sensing element and optimized heater control help maintain consistent performance under thermal load. This Bosch Engineered Oxygen Sensor is a direct-fit service part for select Mitsubishi, Chrysler, and Dodge applications, including 2004-2006 Mitsubishi Lancer upstream and 1996-1999 Chrysler Sebring, Dodge Avenger, and Mitsubishi Eclipse downstream positions. This part cross-references 5269711 and 05269711 for the same application.

What This Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings at the ECU
• Rough idle or unstable fuel control from a worn sensor
• Delayed closed-loop operation after engine start
• Emissions test failures tied to sensor response issues

Installation Notes and Tips

Verify the vehicle position before ordering, since this part is listed for both upstream and downstream applications depending on the vehicle. Confirm connector shape, wire count, thread size, and harness length against the original sensor before installation. Use proper oxygen sensor service tools for removal and tightening, and inspect the exhaust bung threads and wiring routing before final fitment.

Quality Assurance

Bosch has more than five decades of OE oxygen sensor development behind this design. The Bosch Engineered Oxygen Sensor line is built to OE-level specifications for accurate signal output, durable materials, and dependable service in demanding exhaust environments.