Walker 250-54071 Oxygen Sensor - Upstream

Walker Products OE Oxygen Sensor for Suzuki SX4

Walker Products OE Part Number 250-54071 is a heated oxygen sensor built for specific vehicle applications and exact upstream placement. It is engineered to provide the ECU with the feedback needed for proper fuel control and emissions monitoring on 2010-2013 Suzuki SX4 models.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for confirmed upstream placement
• 4-wire configuration with 20-gauge wiring
• Radiused polygon male connector for application-specific connection
• Threaded mounting with 18.0 mm thread diameter
• Overall length: 10.94 in.; wiring harness length: 7.4 in.

Product Details

Walker Products OE 250-54071 is part of the Walker Products OE line, which focuses on original-equipment-style replacement sensors for precise fitment and diagnostic feedback. This oxygen sensor is intended for the upstream position on the Suzuki SX4, including Fits 2010-2013 Suzuki SX4, Upstream. It is also listed for Bank 1 Sensor 1 applications where an upstream oxygen sensor is required. For shoppers searching for a 2010-2013 Suzuki SX4 upstream oxygen sensor or Walker Products OE 250-54071, this part matches the specified vehicle and sensor position.

Walker Products has supplied engine management and fuel system components since 1946 and manufactures sensors to application-specific requirements. This part cross-references no listed interchange numbers in the provided data.

Common Issues This Sensor May Address

• Check engine light related to oxygen sensor performance
• Rough engine operation caused by incorrect air-fuel feedback
• Increased fuel consumption from inaccurate sensor readings
• Higher exhaust emissions from poor mixture control
• Stored ECU fault codes tied to the upstream sensor circuit

Installation Notes

Verify the connector shape, wire count, thread diameter, and upstream location before installation. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion, since physical damage can shorten service life and affect signal quality. Confirm the vehicle’s fault codes and sensor position before replacing the part.

Quality Assurance

Walker Products OE sensors are manufactured as OE-style replacements for specific applications and fitment positions, with production supported by ISO 9001/TS 16949 quality systems.