Walker 350-35158 Oxygen Sensor - Upstream Left or Upstream Right

OE replacement oxygen sensor

Walker 350-35158 is a specific-fit oxygen sensor built for vehicles that need accurate exhaust feedback to the ECU. It uses a wide-band, heated design with a threaded M18 x 1.5 mount and a D-shape female connector for application-specific installation.

Key features

• Standard replacement oxygen sensor for direct application matching
• Wide-band sensor type for precise air-fuel monitoring
• Heated design for faster operating response
• Threaded mounting with M18 x 1.5 thread size
• 5-wire harness with blade terminals and D-shape connector
• Specific-fit construction for the listed vehicle applications

Detailed description

This Walker oxygen sensor is engineered as an OE Replacement part for vehicles that rely on accurate diagnostic feedback from the exhaust system. Part number 350-35158 is built as a standard replacement sensor with a heated wide-band design, 5-wire configuration, and a 6-terminal connector layout to match the required application. It is a fitment-based solution for 2024 Ford Expedition, 2024 Lincoln Navigator, and 2020 Cadillac CT6 applications, including upstream left and upstream right positions as listed. Walker 350-35158 is intended for drivers addressing sensor-related fault codes, poor engine performance, higher fuel use, or increased emissions caused by a failing oxygen sensor. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What this part is used for

• Replacing a failed oxygen sensor that triggers a malfunction indicator light
• Restoring accurate exhaust feedback to the engine control system
• Addressing rough running or fuel economy loss linked to sensor faults
• Correcting emissions issues caused by degraded sensor output
• Replacing damaged sensor wiring, connector, or harness-related components

Installation notes and tips

Verify the connector shape, terminal count, thread size, and sensor position before installation. Inspect the sensor wiring harness and connector for heat damage, corrosion, or physical wear before replacing the part. Confirm the listed fitment and position match the vehicle application exactly before service. Part number 350-35158 should be installed only where the application calls for this specific sensor configuration.

Quality assurance

Walker Products manufactures engine management and oxygen/air-fuel sensors as OE replacement components and operates as an ISO 9001/TS 16949 certified company. Part number 350-35158 is built for application-specific fitment and ECU feedback requirements.