Walker 350-34231 Oxygen Sensor - Downstream Left, Downstream Rear or Downstream Right

Walker 350-34231 Oxygen Sensor for Cadillac

Walker Products 350-34231 is a heated, specific-fit oxygen sensor engineered as an OE-style replacement for select Cadillac applications. It is built for downstream monitoring and provides the ECU with the feedback needed to manage emissions and fuel control on the covered vehicles.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for the listed Cadillac applications
• Threaded mounting with 18.0 mm thread diameter
• 4-wire configuration with 20-gauge wiring
• Radiused polygon male connector for proper vehicle-side connection
• Wiring harness length: 30.04 in.; overall length: 33.58 in.

Product Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors built for direct replacement use. The 350-34231 is designed for the correct fitment position and diagnostic feedback expected by the ECU on the supported Cadillac STS, SRX, and XLR models. For shoppers searching for a downstream oxygen sensor for 2007-2010 Cadillac STS, a rear downstream oxygen sensor for 2007-2009 Cadillac SRX, or a downstream right or left oxygen sensor for 2006-2009 Cadillac XLR, this part number matches the listed applications.

This part cross-references no listed aftermarket part numbers for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor engine operation caused by incorrect exhaust feedback
• Increased fuel consumption from inaccurate air-fuel monitoring
• Higher exhaust emissions from a failing downstream sensor
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes

Install only in the listed downstream position for the vehicle. Verify the sensor, wiring harness, and connector for physical damage before installation, since damaged components can shorten sensor life and affect operation. Confirm connector shape, wire count, and thread size before beginning service.

• Fits 2007-2010 Cadillac STS, downstream right
• Fits 2007-2009 Cadillac SRX, downstream rear
• Fits 2006-2009 Cadillac XLR, downstream right
• Fits 2006-2009 Cadillac XLR, downstream left

Quality Assurance

Walker Products has supplied engine management and fuel system components since 1946 and operates as an ISO 9001 / TS 16949 certified company. The 350-34231 is manufactured for the specified application and fitment position to support proper ECU feedback on the covered Cadillac models.