Walker 250-54082 Oxygen Sensor - Upstream

Walker OE Oxygen Sensor for Nissan Altima

Walker Products OE 250-54082 is a heated oxygen sensor built for specific applications and OE-style fitment. It is engineered to provide the ECU with the feedback needed for proper fuel control and emissions monitoring on select Nissan Altima models.

For 2011-2013 Nissan Altima upstream Bank 1 Sensor 1 applications, this sensor is a direct-fit replacement for non-California emissions vehicles. The Walker Products OE line focuses on application-specific coverage, with fitment matched to the vehicle position, connector style, and sensor output requirements.

Key Features

• Part number: 250-54082
• Heated oxygen sensor design
• Specific fit for the listed application
• Threaded mounting type with 18.0 mm thread diameter
• 4-wire configuration with 20-gauge wiring
• Radiused polygon male connector
• Wiring harness length: 12.32
• Overall length: 15.87

Detailed Description

Walker Products OE 250-54082 is an emission control sensor designed for upstream placement on select Nissan Altima vehicles. It is specified for Bank 1 Sensor 1 use on 2011-2013 Altima models without California emissions certification, including vehicles built for Federal emissions configurations. As an oxygen sensor, it helps the engine control module monitor exhaust oxygen content so the ECU can adjust air-fuel strategy and diagnose sensor-related faults.

Walker Products OE sensors are developed as original-equipment replacement parts for a wide range of vehicles worldwide. The brand’s OE product line is built around application-specific fitment, so the connector, harness length, mounting style, and sensor position align with the listed vehicle requirements. Part number 250-54082 is also referenced in OE-style replacement searches for 2011-2013 Nissan Altima upstream oxygen sensor applications.

What It Helps Address

• Check engine light related to upstream oxygen sensor performance
• Poor engine operation caused by incorrect air-fuel feedback
• Increased fuel consumption from a failing sensor signal
• Higher exhaust emissions from inaccurate ECU input
• Fault codes stored for Bank 1 Sensor 1 or related sensor circuits

Installation Notes and Tips

• Confirm the vehicle is a 2011-2013 Nissan Altima with non-California emissions before ordering.
• Verify the upstream Bank 1 Sensor 1 location matches the vehicle’s sensor position.
• Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation.
• Check the exhaust bung threads and mounting area for damage prior to threading in the sensor.
• Use the vehicle’s service information for proper torque and connector routing.

Quality Assurance

Walker Products has produced engine management and fuel system components since 1946 and operates as an Automotive ISO9001/TS 16949 certified company. The OE product line is built around application-specific replacement coverage for diagnostic accuracy and proper vehicle fitment.