HomeEmission Control > SensorsBosch 15581 Oxygen Sensor - Downstream, Upstream Left or Upstream Right
Part #: 15581

Bosch 15581 Oxygen Sensor - Downstream, Upstream Left or Upstream Right

Bosch Engineered Oxygen Sensor, Downstream
28 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Bosch Engineered Oxygen Sensor, Downstream
Fitment: Mitsubishi and Dodge, Galant, 3000GT, Montero Sport, Stealth, and Montero
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Reliable Oxygen Sensor for Dodge and Mitsubishi Vehicles

The Bosch Engineered Oxygen Sensor 15581 is designed specifically for select Dodge and Mitsubishi models, including the 3000GT, Galant, Montero, Montero Sport, and Stealth. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance.

  • Specific fit for Dodge 3000GT, Mitsubishi Galant, Montero, Montero Sport, and Stealth
  • Heated narrow-band oxygen sensor for precise air-fuel mixture readings
  • Threaded mounting type with 18 mm thread diameter and 22 mm hex size
  • Includes a 30.3-inch wiring harness with 4 wires and blade terminals
  • Durable metal housing with steel finish and male square connector
  • Standard replacement grade for reliable emission control

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering sensors that meet OEM specifications for emission control systems. The 15581 part number is part of this line, offering a narrow-band heated sensor designed to provide accurate oxygen level readings for specific vehicle applications. This ensures compatibility and performance aligned with factory standards.

Product Details and Specifications

This Bosch oxygen sensor features a 4-wire configuration with blade-type terminals and a male square connector, facilitating straightforward installation and secure electrical connections. The sensor’s overall length is approximately 33.7 inches, with a wiring harness length of 30.3 inches, allowing for proper routing in the engine bay. The threaded mounting type with an 18 mm diameter and 22 mm hex size ensures a precise fit into the exhaust system. Constructed with a metal housing and steel finish, this sensor is built to withstand harsh operating conditions. The heated element within the sensor helps it reach operating temperature quickly, improving emission control efficiency.

Common Applications and Issues Addressed

  • Restores accurate air-fuel ratio readings for improved engine performance
  • Helps resolve check engine light triggers related to oxygen sensor faults
  • Reduces emissions by ensuring proper catalytic converter function
  • Prevents rough idling and poor fuel economy caused by faulty sensors
  • Maintains compliance with emission regulations for Dodge and Mitsubishi vehicles

Installation Notes and Tips

When installing the Bosch Engineered Oxygen Sensor 15581, ensure the vehicle is cool to avoid burns. Use the 22 mm hex size to remove the old sensor and install the new one securely with the 18 mm threaded mount. Verify the wiring harness routing to prevent contact with hot or moving parts. The 4-wire blade terminal connector should be connected firmly to avoid electrical issues. No mounting bracket is included, so use the existing mounting point on the vehicle.

Quality Assurance and Warranty

Bosch Engineered Oxygen Sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This part is a standard replacement grade sensor designed to meet OEM specifications. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control components. Refer to Bosch or your parts provider for exact warranty terms.

This part fits 28 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012MitsubishiGalant2.4LL4DownstreamCylinder(s) 1 and 2; Bosch Engineered Oxygen Sensor
2011MitsubishiGalant2.4LL4DownstreamCylinder(s) 1 and 2; Bosch Engineered Oxygen Sensor
2010MitsubishiGalant2.4LL4DownstreamCylinder(s) 1 and 2; Bosch Engineered Oxygen Sensor
2009MitsubishiGalant2.4LL4DownstreamCylinder(s) 1 and 2; Bosch Engineered Oxygen Sensor
2008MitsubishiGalant2.4LL4DownstreamCylinder(s) 1 and 2; Bosch Engineered Oxygen Sensor
2007MitsubishiGalant2.4LL4DownstreamCylinder(s) 1 and 2; Bosch Engineered Oxygen Sensor
2006MitsubishiGalant2.4LL4DownstreamCylinder(s) 1 and 2; Bosch Engineered Oxygen Sensor
2005MitsubishiGalant2.4LL4DownstreamCylinder(s) 1 and 2; Bosch Engineered Oxygen Sensor
2004MitsubishiGalant2.4LL4DownstreamCylinder(s) 1 and 2; Bosch Engineered Oxygen Sensor
1999Mitsubishi3000GT3.0LV6Upstream RightBosch Engineered Oxygen Sensor
1998Mitsubishi3000GT3.0LV6Upstream RightBosch Engineered Oxygen Sensor
1998MitsubishiMontero Sport3.0LV6Upstream Rightwith California Emission System; Bosch Engineered Oxygen Sensor
1997Mitsubishi3000GT3.0LV6Upstream RightBosch Engineered Oxygen Sensor
1997MitsubishiMontero Sport3.0LV6Upstream Rightwith California Emission System; Bosch Engineered Oxygen Sensor
1996DodgeStealth3.0LV6Upstream RightBosch Engineered Oxygen Sensor
1996Mitsubishi3000GT3.0LV6Upstream RightBosch Engineered Oxygen Sensor
1996MitsubishiMontero3.0LV6Upstream Leftwith California Emission System; Bosch Engineered Oxygen Sensor
1995DodgeStealth3.0LV6Upstream RightBosch Engineered Oxygen Sensor
1995Mitsubishi3000GT3.0LV6Upstream RightBosch Engineered Oxygen Sensor
1995MitsubishiMontero3.0LV6Upstream Leftwith California Emission System; Bosch Engineered Oxygen Sensor
1994DodgeStealth3.0LV6Upstream RightBosch Engineered Oxygen Sensor
1994Mitsubishi3000GT3.0LV6Upstream RightBosch Engineered Oxygen Sensor
1993DodgeStealth3.0LV6Upstream LeftBosch Engineered Oxygen Sensor
1993Mitsubishi3000GT3.0LV6Upstream RightBosch Engineered Oxygen Sensor
1992DodgeStealth3.0LV6Upstream LeftBosch Engineered Oxygen Sensor
1992Mitsubishi3000GT3.0LV6Upstream RightBosch Engineered Oxygen Sensor
1991DodgeStealth3.0LV6Upstream LeftBosch Engineered Oxygen Sensor
1991Mitsubishi3000GT3.0LV6Upstream RightBosch Engineered Oxygen Sensor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.