Denso 234-9068 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right

Denso OE Style Air/Fuel Ratio Sensor

Denso 234-9068 is an OE Style heated air/fuel ratio sensor built for exact replacement and first-time fit. It is a specific-fit sensor with a 4-wire design and a male connector, made for direct replacement on select Lexus and Toyota applications.

The OE Style product line focuses on factory-style fit and function for drivers replacing a worn upstream sensor on Lexus LS600h, IS250, IS350, GS350, GS460, and Toyota Highlander applications. Denso 234-9068 is built to match the original sensor layout and connection style for straightforward service work.

Key Features

• Part number: 234-9068
• Heated air/fuel ratio sensor for upstream placement
• Specific fit for select Lexus and Toyota vehicles
• 4-wire configuration with male connector
• Wiring harness length: 8.66
• Thread diameter: 0.711
• OE Style replacement built to strict OE standards

Detailed Description

This Denso air/fuel ratio sensor is engineered for precise signal monitoring in the exhaust stream, helping the engine control system maintain proper fuel delivery and emissions performance. It is a direct-fit replacement for select upstream sensor locations on 2008-2016 Lexus and Toyota models, including Lexus LS600h, IS250, IS350, GS350, GS460, and Toyota Highlander. If you are replacing a failing upstream sensor on a Lexus IS350 or Toyota Highlander, 234-9068 provides the OE-style configuration needed for a clean installation and proper electrical connection.

This part cross-references Bosch 15988 and Delphi ES10933 for the same application.

What It Helps Address

• Check engine light related to air/fuel ratio sensor performance
• Rough idle caused by inaccurate exhaust oxygen feedback
• Fuel trim issues from a slow or faulty upstream sensor
• Emissions test failures tied to sensor response problems
• Poor drivability from incorrect air/fuel mixture control

Installation Notes and Tips

• Compatible With 2016 Lexus LS600h, upstream.
• Compatible With 2013-2015 Lexus LS600h, upstream.
• Compatible With 2009-2012 Lexus IS250, upstream left.
• Compatible With 2009-2012 Lexus IS350, upstream left.
• Compatible With 2009-2011 Lexus GS350, upstream left.
• Compatible With 2008-2011 Lexus GS460, upstream right.
• Compatible With 2008-2010 Toyota Highlander, upstream left.
• Compatible With 2008 Lexus GS350, upstream left, from 02/08 or from 03/08.
• Compatible With 2008 Lexus IS250, upstream left, from 02/08.
• Compatible With 2008 Lexus IS350, upstream left, from 02/08.

Verify the connector style, sensor position, and build date before installation. Match the upstream left or upstream right location exactly to the original sensor on the vehicle.

Quality Assurance

Denso manufactures and tests this OE Style sensor to OE-level standards for replacement accuracy and consistent fit. The 234-9068 is built as a direct replacement part for the listed Lexus and Toyota applications.