Bosch 15486 Oxygen Sensor - Upstream or Upstream Left

Bosch Validated Wideband Oxygen Sensor

Bosch Validated Oxygen Sensor 15486 is a specific-fit, heated wideband A/F oxygen sensor built for precise air-fuel ratio measurement across the full lambda range. It provides the ECU with detailed feedback for accurate mixture control, helping maintain fuel efficiency, engine response, and lower emissions in everyday driving and under changing load conditions.

This Bosch Validated Oxygen Sensor line reflects Bosch’s OE development background and wideband sensor expertise. The planar pump-cell design, fast light-off behavior, optimized heater control, and robust ceramic construction are engineered for stable signal output in demanding thermal cycles. Part number 15486 is a direct replacement style sensor for select Toyota, Lexus, Pontiac, and Scion applications.

• Wideband A/F oxygen sensor for continuous air-fuel ratio monitoring
• Heated design for faster operating temperature and signal readiness
• Specific-fit replacement with 4-wire, blade-terminal configuration
• Square connector with included wiring harness
• Threaded mounting, 18 mm thread size, 22 mm hex size
• Standard replacement grade for OE-style service work
• Fits select Toyota Camry, Highlander, RAV4, Avalon, Lexus RX350, and RX450h applications

Fitment Details

Compatible with these confirmed applications: Fits 2007-2011 Toyota Camry, upstream; Fits 2007 Toyota Camry, upstream left; Fits 2004-2007 Toyota Highlander, upstream; Fits 2001-2003 Toyota Highlander, upstream; Fits 2004-2005 Toyota RAV4, upstream; Fits 2005-2007 Toyota Avalon, upstream left; Fits 2010-2012 Lexus RX350, upstream left; Fits 2007 Lexus RX350, upstream left; Fits 2007 Lexus ES350, upstream left; Fits 2010 Lexus RX450h, upstream left; Fits 2009-2010 Pontiac Vibe, upstream; Fits 2008-2010 Scion xB, upstream.

This part cross-references Bosch Validated Oxygen Sensor applications using OE-style interchange numbers such as 894670E120 and 19184901 for the same application.

What This Sensor Helps Address

• Incorrect air-fuel ratio readings from a worn upstream sensor
• Check engine lights related to oxygen sensor performance
• Rough idle or hesitation caused by inaccurate mixture feedback
• Reduced fuel economy from poor fuel control
• Higher emissions from delayed or unstable sensor response

Installation Notes and Tips

Install this sensor in the confirmed upstream position only for the listed applications. Verify connector shape, wire count, thread size, and harness length before installation. Because this is a threaded oxygen sensor, use the correct oxygen sensor socket and follow the vehicle service procedure for routing and torque. Clear diagnostic trouble codes after installation and confirm closed-loop operation.

Quality Assurance

Bosch backs this sensor with more than five decades of OE development in engine management and emissions technology. The design uses Bosch’s validated wideband sensor architecture for accurate signal control and durable operation in standard replacement service.