Walker 350-31012 Oxygen Sensor - Upstream

Walker 350-31012 Oxygen Sensor for Swift

Walker Products 350-31012 is a specific-fit oxygen sensor engineered as an OE-style replacement for select Suzuki Swift applications. It is built for upstream placement and provides the ECU with the exhaust feedback needed for proper fuel control and emissions monitoring.

Key Features

• Specific-fit oxygen sensor for confirmed Suzuki Swift applications
• Upstream position for Bank 1 Sensor 1 service needs
• Non-heated sensor design
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon female connector for vehicle-specific connection
• 15.28 in. wiring harness length with 20-gauge wire
• Overall length: 18.82 in.

Product Details

Walker Products Aftermarket 350-31012 is part of the Walker Products engine management and oxygen/air-fuel sensor line, which focuses on OE-style replacement parts for vehicle-specific fitment and ECU feedback requirements. This oxygen sensor is listed for 1989 Suzuki Swift and 1993-1994 Suzuki Swift upstream applications, including Bank 1 Sensor 1 service on the front oxygen sensor position. Walker Products 350-31012 is built for threaded installation and uses a female connector with a radiused polygon shape to match the original vehicle connection style.

For buyers searching for a 1989 Suzuki Swift upstream oxygen sensor or a 1993-1994 Suzuki Swift front oxygen sensor replacement, this part number provides a direct-fit solution for the listed applications. Walker Products 350-31012 is also identified by the part number 350-31012 in catalog and service lookup use.

What It Helps Address

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

Installation Notes

Verify the vehicle application, sensor position, connector style, and thread size before installation. Inspect the sensor wiring harness and connector for damage, since physical wear can shorten sensor life and affect signal quality. Confirm the upstream location on the vehicle and replace only with the specified fitment for the listed Suzuki Swift models.

Quality Assurance

Walker Products states that its engine management sensors are developed for OE replacement use and manufactured under Automotive ISO9001/TS 16949 quality systems. The brand has supplied engine management and fuel system components since 1946, and the 350-31012 follows that application-specific approach for the listed Suzuki Swift fitments.