Walker 350-34614 Oxygen Sensor

Walker 350-34614 Oxygen Sensor Overview

Walker Products 350-34614 is a heated oxygen sensor built as a specific-fit OE replacement for select GM vehicles. It is engineered to deliver the ECU feedback needed for accurate fuel control, emissions monitoring, and fault-code diagnosis on applications such as Chevrolet Equinox, GMC Terrain, and Buick LaCrosse.

With a threaded mounting design, 18.0 mm thread diameter, 4-wire configuration, and 18.03 in. wiring harness length, this sensor is matched to the application and position listed below. Walker Products Aftermarket focuses on engine management sensors that align with original equipment fitment and signal requirements.

Key Features

• Heated oxygen sensor for precise exhaust feedback
• Specific-fit design for the listed vehicle positions
• 4-wire sensor configuration with male radiused polygon connector
• 18.03 in. wiring harness length and 20-gauge wire
• Threaded mounting type with 18.0 mm thread diameter
• Supports ECU monitoring for fuel trim and emissions control

Detailed Product Description

Walker Products Aftermarket 350-34614 is designed for direct replacement in a wide range of GM applications from 2004 through 2017. It is used in upstream and downstream positions across multiple bank and sensor locations, including front, rear, left, and right placements where specified by the vehicle. This makes it a practical choice when replacing a failed oxygen sensor on a Chevrolet Equinox, GMC Terrain, or Buick LaCrosse, as well as other listed models.

As an OE-style replacement sensor, it is intended to restore the diagnostic feedback the ECU relies on to manage air-fuel ratio and emissions performance. Walker Products has supplied engine management components since 1946 and manufactures application-specific sensors for the required fitment position.

This part cross-references no listed interchange numbers in the provided data.

What This Oxygen Sensor Helps Address

• Check engine light or MIL illumination tied to oxygen sensor faults
• Rough engine operation caused by incorrect exhaust feedback
• Increased fuel consumption from inaccurate air-fuel correction
• Elevated exhaust emissions from a failing heated oxygen sensor
• Stored ECU fault codes related to sensor performance or wiring issues

Installation Notes and Fitment

Fits 2014-2017 Chevrolet Equinox, upstream rear; upstream front; downstream rear; downstream front.

Fits 2013-2017 GMC Terrain, upstream rear; upstream front; downstream rear; downstream front.

Fits 2016 Buick LaCrosse, upstream rear; upstream front; downstream rear; downstream front.

Fits 2014-2016 Cadillac ELR, downstream.

Fits 2010-2016 Cadillac SRX, upstream rear; upstream front; downstream rear; downstream front.

Fits 2014-2016 Chevrolet Impala Limited, upstream right; upstream left; downstream right; downstream left.

Fits 2010-2015 Buick LaCrosse, upstream rear; upstream front; downstream rear; downstream front.

Fits 2011-2015 Chevrolet Captiva Sport, upstream right; upstream left; downstream right; downstream left.

Fits 2011-2015 Chevrolet Volt, downstream.

Fits 2010-2013 Chevrolet Equinox, upstream rear; upstream front; downstream rear; downstream front.

Fits 2012-2013 Chevrolet Impala, upstream rear; upstream front; downstream rear; downstream front.

Fits 2010-2012 GMC Terrain, upstream rear; upstream front; downstream rear; downstream front.

Fits 2009-2011 Buick Enclave, upstream rear; upstream front; downstream rear; downstream front.

Fits 2009-2011 Chevrolet Traverse, upstream rear; upstream front; downstream rear; downstream front.

Fits 2009-2011 GMC Acadia, upstream rear; upstream front; downstream rear; downstream front.

Fits 2010 Buick Allure, upstream rear; upstream front; downstream rear; downstream front.

Fits 2009-2010 Saturn Outlook, upstream rear; upstream front; downstream rear; downstream front.

Fits 2005-2008 Buick Allure, downstream.

Fits 2005-2008 Buick LaCrosse, downstream.

Fits 2005-2006 Buick Rendezvous, downstream.

Fits 2005 Cadillac XLR, downstream right; downstream left.

Fits 2004 Cadillac CTS, downstream right; downstream left.

Fits 2004 Cadillac XLR, downstream right; downstream left.

Confirm the sensor position, bank, and side before installation. Inspect the connector, harness, and surrounding wiring for damage, especially if the original sensor triggered a fault code.

Quality Assurance

Walker Products manufactures engine management sensors as OE replacement parts for specific applications and positions, with ISO 9001/TS 16949 certified operations supporting product consistency and fitment control.

Part number 350-34614 is built to match the listed vehicle applications and diagnostic requirements for the ECU.