Walker 250-23033 Oxygen Sensor - Upstream

Overview of Walker 250-23033 Oxygen Sensor

The Walker 250-23033 oxygen sensor is designed specifically for select Volvo models, including the 240, 740, 760, 780, 940, and 960. This heated oxygen sensor features a threaded mounting type and precise fitment to ensure accurate emissions control and engine performance.

• Heated oxygen sensor for improved response time
• Specific fit for Volvo 240, 740, 760, 780, 940, and 960 models
• Threaded mounting with 18.0 mm thread diameter
• 63.31 inches wiring harness length with 3 wires of 20 gauge
• Radiused polygon connector shape with male and female connectors
• Overall length of 66.85 inches for proper installation

Detailed Product Features and Specifications

This Walker oxygen sensor (part number 250-23033) is engineered with a heated sensor element to provide faster warm-up times, which helps maintain optimal air-fuel mixture readings under various operating conditions. The sensor includes a 63.31-inch wiring harness with three 20-gauge wires, allowing for reliable electrical connections. Its radiused polygon connector design features both male and female connectors, ensuring secure and precise fitment. The threaded mounting type with an 18.0 mm thread diameter facilitates straightforward installation in compatible Volvo exhaust systems. The overall length of 66.85 inches accommodates proper placement within the vehicle’s emission control system.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with Volvo’s original components. Using a Walker Products OE sensor helps maintain the integrity of the vehicle’s emission system and supports compliance with environmental regulations.

Applications and Common Issues Addressed

• Restores accurate oxygen level readings for improved fuel efficiency
• Helps resolve engine performance issues related to faulty sensors
• Reduces emissions by ensuring proper air-fuel mixture control
• Prevents check engine light triggers caused by sensor failure
• Supports smooth engine idling and acceleration response

Installation Notes and Tips

When installing the Walker 250-23033 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the wiring harness length and connector types match the vehicle’s existing setup. Proper torque specifications should be followed to secure the sensor without over-tightening. It is recommended to inspect the wiring and connectors for corrosion or damage before installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 250-23033 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship. This ensures reliable performance and durability for Volvo emission control systems.