Bosch 15580 Oxygen Sensor

Bosch Oxygen Sensor for Mitsubishi and Suzuki

Bosch part number 15580 is a narrow-band heated oxygen sensor built for specific vehicle applications that require accurate air-fuel-ratio feedback to the ECU. It is a threaded, direct-fit replacement with a square connector, 4-wire harness, and integrated wiring harness for service on select Mitsubishi Outlander, Eclipse, Galant, Montero, Montero Sport, and Suzuki Verona models.

Key Features

• Bosch Engineered Oxygen Sensor, part number 15580
• Narrow-band heated oxygen sensor for closed-loop fuel control
• Specific-fit design with threaded mounting
• 4-wire configuration with blade terminals and square male connector
• Wiring harness included; harness length measures 25.8 in
• Overall length: 29.1 in; sealing surface to connector end: 28 in
• 18 mm thread diameter and 22 mm hex size
• Metal housing with steel finish for underbody service conditions

Detailed Description

Bosch 15580 is part of the Bosch Engineered Oxygen Sensor line, which draws on Bosch OE development in switching-type O2 sensor technology. This sensor uses a heated narrow-band design to send precise exhaust oxygen feedback to the engine control unit, helping maintain stable combustion control across changing load and temperature conditions. Bosch’s ceramic sensing element, controlled heater strategy, and high-temperature materials are used to support consistent signal response in demanding exhaust environments.

For fitment-focused searches, this Bosch oxygen sensor is used on applications such as Fits 2014-2016 Mitsubishi Outlander, Downstream Right; Fits 2011-2012 Mitsubishi Eclipse, Downstream; and Fits 2004-2012 Mitsubishi Galant, Downstream. It also covers Fits 2006 Suzuki Verona, Downstream and additional Mitsubishi Montero, Montero Sport, and Eclipse positions listed below. Bosch 15580 cross-references Mitsubishi OE numbers such as MD306893 and MD333994 for the same application.

What This Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture feedback to the ECU
• Slow closed-loop response after warm-up
• Emissions test failures tied to sensor signal degradation
• Rough idle or drivability issues caused by inaccurate exhaust feedback

Installation Notes and Fitment

• Fits 2014-2016 Mitsubishi Outlander, Downstream Right
• Fits 2013 Mitsubishi Outlander, Downstream Rear
• Fits 2011-2012 Mitsubishi Eclipse, Downstream, Cylinder(s) 3 and 4
• Fits 2007-2011 Mitsubishi Outlander, Downstream Right, located after primary converter
• Fits 2007-2010 Mitsubishi Eclipse, Downstream, Cylinder(s) 1 and 2
• Fits 2004-2012 Mitsubishi Galant, Downstream, Cylinder(s) 3 and 4
• Fits 2006 Mitsubishi Eclipse, Downstream, Cylinder(s) 3 and 4
• Fits 2006 Suzuki Verona, Downstream, with 27.56 in wire
• Fits 2004 Mitsubishi Montero Sport, Downstream Left
• Fits 1997-2000 Mitsubishi Montero, Upstream, without California Emission System
• Fits 1997-2000 Mitsubishi Montero, Downstream Left, with California Emission System
• Fits 1997 Mitsubishi Montero, Upstream Right, with California Emission System
• Fits 1994-1996 Mitsubishi Montero, Upstream
• Verify connector shape, wire length, and sensor position before installation
• Use the correct oxygen sensor socket for the 22 mm hex
• Threaded mounting and 18 mm thread size should match the original application

Quality Assurance

Bosch has more than five decades of OE oxygen sensor development behind this replacement part. The Bosch Engineered Oxygen Sensor line is built to OE-proven standards for accuracy, durability, and stable operation in demanding exhaust conditions.