Bosch 15960 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Bosch Validated Oxygen Sensor for Toyota and Lexus

Bosch Validated Oxygen Sensor 15960 is a specific-fit, heated oxygen sensor built for upstream air-fuel monitoring on select Toyota, Lexus, and Scion applications. It provides the ECU with precise exhaust feedback to support stable combustion control and lower emissions.

Use this Bosch Validated Oxygen Sensor when replacing an upstream sensor on vehicles such as the Toyota Camry, Toyota RAV4, Lexus ES350, and Scion xB. Part number 15960 is engineered as a standard replacement with OE-style fitment and connector design.

Key Features

• Specific-fit oxygen sensor for select upstream applications
• Heated design for faster closed-loop operation
• Wide band oxygen sensor type with narrow-band sensor designation in the product data
• 4-wire configuration with square male connector
• Threaded mounting with 18 mm thread size and 22 mm hex size
• Wiring harness included for direct replacement use
• Metal housing with steel finish for underbody durability
• Wiring harness length: 17.8 in; overall length: 21.3 in

Product Details

Bosch Validated Oxygen Sensor 15960 reflects Bosch’s long OE development history in oxygen sensing, including early thimble-style designs and later planar sensor technology focused on faster light-off and more accurate lambda control. This sensor uses advanced ceramic elements, controlled heating, and high-temperature-resistant materials to maintain consistent signal quality under thermal and vibration stress. It is a direct replacement choice for upstream left, upstream, and upstream right positions across supported Toyota, Lexus, and Scion vehicles.

This part cross-references Toyota/Lexus OE numbers such as 894670E090 and 894670R010 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rough idle or unstable air-fuel control from a failing upstream sensor
• Delayed closed-loop operation after startup
• Elevated emissions from inaccurate exhaust oxygen readings
• Fuel trim issues caused by slow or inconsistent sensor response

Installation Notes and Fitment

Compatible with select Toyota Camry, Toyota RAV4, Toyota Avalon, Toyota Corolla, Toyota Sienna, Toyota Venza, Toyota Highlander, Toyota Matrix, Toyota Solara, Lexus ES350, Lexus RX350, and Scion xB/tC applications. Fitment includes upstream left, upstream, and upstream right positions depending on vehicle configuration.

• Fits 2015-2018 Lexus ES350, Upstream Left
• Fits 2008-2012 Lexus ES350, Upstream Left
• Fits 2015 Lexus RX350, Upstream Left, Japan Built
• Fits 2011-2015 Scion xB, Upstream
• Fits 2014 Lexus ES350, Upstream Left, From 08/2014
• Fits 2014 Lexus RX350, Upstream Left, From 03/2014, Japan Built
• Fits 2009-2013 Toyota Matrix, Upstream
• Fits 2008-2012 Toyota Avalon, Upstream Left
• Fits 2009-2012 Toyota Corolla, Upstream
• Fits 2006-2012 Toyota RAV4, Upstream Left
• Fits 2008-2011 Toyota Camry, Upstream Left
• Fits 2007-2011 Toyota Sienna, Upstream Left
• Fits 2009-2011 Toyota Venza, Upstream Left
• Fits 2005-2010 Scion tC, Upstream
• Fits 2008-2010 Toyota Highlander, Upstream Right
• Fits 2008-2009 Lexus RX350, Upstream Left, Except Japan Built
• Fits 2007-2009 Lexus RX350, Upstream Right, Japan Built
• Fits 2008-2009 Toyota Camry, Upstream, with California Emission System
• Fits 2003 Toyota Camry, Upstream, with California Emission System
• Fits 2008-2009 Toyota Camry, Upstream, without California Emission System
• Fits 2006-2008 Toyota RAV4, Upstream
• Fits 2004-2008 Toyota Solara, Upstream
• Fits 2007 Toyota Camry, Upstream, Japan Built, To 02/2007
• Fits 2007 Toyota Camry, Upstream, Except Japan Built
• Fits 2007 Toyota Camry, Upstream, From 03/2007, Japan Built, with California Emission System
• Fits 2007 Toyota Camry, Upstream, From 03/2007, Japan Built, without California Emission System
• Fits 2004-2006 Toyota Camry, Upstream

Quality Assurance

Bosch supplies oxygen sensors with OE development experience and validated aftermarket coverage, using durable materials and controlled heater performance to support consistent operation in demanding exhaust environments.