Walker 350-34613 Oxygen Sensor - Upstream

Walker 350-34613 Oxygen Sensor for Volvo 850

Walker Products 350-34613 is a heated oxygen sensor built as a specific-fit OE-style replacement for select 1994 Volvo 850 applications. It is engineered to provide the ECU with the feedback needed for proper fuel control and emissions monitoring on the upstream position.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fitment for the upstream location
• 4-wire design with a male radiused polygon connector
• 18.0 mm thread diameter and threaded mounting type
• Wiring harness length: 18.82 in.; overall length: 22.36 in.
• Wire gauge: 20

Product Details

Walker Products Aftermarket 350-34613 is designed for 1994 Volvo 850 upstream sensor applications, including vehicles with exclusions for the air pump and chassis/VIN #70019 as listed in the fitment data. As an oxygen sensor, it helps the engine management system monitor exhaust oxygen content so the ECU can adjust air-fuel delivery and maintain proper diagnostic feedback. Walker Products has developed this sensor line as an OE replacement solution for a wide range of vehicles, with application-specific fitment and connector configuration.

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

What It Can Help Address

• Check engine light related to upstream oxygen sensor performance
• Poor fuel economy caused by inaccurate exhaust feedback
• Rough running or inconsistent air-fuel control
• Higher exhaust emissions from a failing sensor
• Fault codes stored in the ECU for sensor-related issues

Installation Notes

Compatible With 1994 Volvo 850, upstream. Verify the air pump exclusion and chassis/VIN break before installation. Inspect the sensor wiring harness and connector for damage, and confirm the threaded mounting location and connector style match the original part before replacement.

Quality Assurance

Walker Products manufactures engine management and oxygen/air-fuel sensors as application-specific replacements and operates as an automotive ISO9001/TS 16949 certified company. The 350-34613 is built to support the diagnostic feedback expected by the ECU in the listed Volvo 850 application.